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Unied Access Point Administrator’s Guide
March 2012
Unied Access Point Administrator’s Guide
Page 1
Unied Access Point Administrator’s Guide
Table of Contents
Section 1 - About This Document ............................................................................................9
Document Organization ......................................................................................................................................... 9
Section 2 - Getting Started ......................................................................................................11
Administrator’s Computer Requirements ............................................................................................................ 11
Recovering an IP Address ............................................................................................................................. 13
Discovering a Dynamically Assigned IP Address .......................................................................................... 13
Connecting to the AP Web Interface by Using the IPv6 Address .................................................................. 17
Using the CLI to View the IP Address.................................................................................................................. 17
Conguring the Ethernet Settings ....................................................................................................................... 18
Using the CLI to Congure Ethernet Settings ............................................................................................... 18
Using the CLI to Congure 802.1X Authentication Information ..................................................................... 20
Section 3 - Viewing Access Point Status ...............................................................................22
Wired Settings (Internal Interface) ................................................................................................................ 22
Wireless Settings .......................................................................................................................................... 22
Conguring Persistent Logging Options ........................................................................................................ 23
Conguring the Log Relay Host for Kernel Messages .................................................................................. 24
Enabling or Disabling the Log Relay Host on the Events Page .................................................................... 24
Viewing Transmit and Receive Statistics ............................................................................................................. 25
Viewing Associated Wireless Client Information ................................................................................................. 26
Link Integrity Monitoring ................................................................................................................................ 28
Viewing Rogue AP Detection............................................................................................................................... 28
Saving and Importing the Known AP List ...................................................................................................... 30
Viewing Managed AP DHCP Information ............................................................................................................ 31
Section 4 - Managing the Access Point .................................................................................35
Using the 802.11h Wireless Mode ................................................................................................................. 39
Enabling AeroScout™ Engine Support .........................................................................................................39
None (Plain-text) ........................................................................................................................................... 50
Static WEP .................................................................................................................................................... 50
IEEE 802.1X .................................................................................................................................................. 51
WPA Personal ............................................................................................................................................... 53
WPA Enterprise ............................................................................................................................................. 54
WEP on WDS Links ...................................................................................................................................... 58
WPA/PSK on WDS Links .............................................................................................................................. 58
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Unied Access Point Administrator’s Guide
Conguring a MAC Filter and Station List on the AP..................................................................................... 59
Conguring MAC Authentication on the RADIUS Server .............................................................................. 60
Managed Access Point Overview ........................................................................................................................ 61
Transitioning Between Modes ....................................................................................................................... 61
Conguring Managed Access Point Settings ................................................................................................62
Conguring 802.1X Authentication ...................................................................................................................... 63
Section 5 - Conguring Access Point Services ....................................................................65
Enabling the Time Settings (NTP) ....................................................................................................................... 73
Section 6 - Conguring SNMPv3 ............................................................................................75
Section 7 - Maintaining the Access Point ..............................................................................79
Saving the Current Conguration to a Backup File ............................................................................................. 79
Resetting the Factory Default Conguration ................................................................................................. 81
Rebooting the Access Point ..........................................................................................................................81
Packet Capture Conguration and Settings ........................................................................................................ 83
Packet Capture Status .................................................................................................................................. 83
Packet Capture Parameter Conguration ..................................................................................................... 84
Packet File Capture ....................................................................................................................................... 84
Remote Packet Capture ................................................................................................................................ 85
Packet Capture File Download ...................................................................................................................... 87
Section 8 - Conguring Client Quality of Service (QoS) ......................................................88
IPv4 and IPv6 ACLs ......................................................................................................................................89
MAC ACLs ..................................................................................................................................................... 90
ACL Conguration Process ........................................................................................................................... 90
Dening DiffServ ........................................................................................................................................... 96
Creating a DiffServ Policy Map ......................................................................................................................... 100
Client QoS Status .............................................................................................................................................. 101
Section 9 - Clustering Multiple APs .....................................................................................104
Clustering APs ............................................................................................................................................. 104
Viewing and Conguring Cluster Members ................................................................................................. 104
Removing an Access Point from the Cluster ............................................................................................... 106
Adding an Access Point to a Cluster ........................................................................................................... 106
Navigating to Conguration Information for a Specic AP........................................................................... 106
Navigating to an AP by Using its IP Address in a URL ................................................................................ 106
Sorting Session Information ........................................................................................................................ 107
Conguring and Viewing Channel Management Settings ................................................................................. 108
Stopping/Starting Automatic Channel Assignment ...................................................................................... 108
Viewing Current Channel Assignments and Setting Locks ......................................................................... 109
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Viewing the Last Proposed Set of Changes ................................................................................................ 109
Conguring Advanced Settings ................................................................................................................... 109
Viewing Wireless Neighborhood Information .................................................................................................... 110
Viewing Details for a Cluster Member ......................................................................................................... 11 2
Appendix A - Default AP Settings .........................................................................................113
Appendix B - Conguration Examples ................................................................................115
Conguring a VAP ............................................................................................................................................. 115
VAP Conguration from the Web Interface ................................................................................................. 115
VAP Conguration from the CLI .................................................................................................................. 11 5
VAP Conguration Using SNMP ................................................................................................................. 116
Conguring Radio Settings ................................................................................................................................ 116
Radio Conguration from the Web Interface ............................................................................................... 11 7
Radio Conguration from the CLI ................................................................................................................ 117
Radio Conguration Using SNMP ............................................................................................................... 11 8
Conguring the Wireless Distribution System ................................................................................................... 11 8
WDS Conguration from the Web Interface ................................................................................................ 11 8
WDS Conguration from the CLI ................................................................................................................. 119
WDS Conguration Using SNMP ................................................................................................................ 11 9
Clustering Access Points ................................................................................................................................... 119
Clustering APs by Using the Web Interface ................................................................................................ 11 9
Clustering APs by Using the CLI ................................................................................................................. 120
Clustering APs by Using SNMP .................................................................................................................. 120
Conguring Client QoS ..................................................................................................................................... 121
Conguring QoS by Using the Web Interface ............................................................................................. 121
Conguring QoS by Using the CLI .............................................................................................................. 124
Appendix C - Statements ......................................................................................................127
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Unied Access Point Administrator’s Guide
Page 4
Unied Access Point Administrator’s Guide
List of Figures
Figure 1 - Administrator UI Online Help ................................................................................................................... 10
Figure 2 - Web UI Login Prompt .............................................................................................................................. 14
Figure 3 - Provide Basic Settings ............................................................................................................................ 15
Figure 4 - Command Line Interface (CLI) Connection ............................................................................................ 18
Figure 5 - Viewing Interface Status ......................................................................................................................... 22
Figure 6 - Viewing Events ........................................................................................................................................ 23
Figure 7 - Viewing Trafc Statistics ......................................................................................................................... 25
Figure 8 - Viewing Client Association Information ................................................................................................... 26
Figure 9 - Viewing TSPEC Client Associations ....................................................................................................... 27
Figure 10 - Viewing Rogue and Known Access Points............................................................................................ 28
Figure 11 - Managed AP DHCP Information ............................................................................................................ 31
Figure 12 - Viewing TSPEC Status and Statistics ................................................................................................... 31
Figure 13 - View TSPEC Status and Statistics ........................................................................................................ 32
Figure 14 - View Radio Statistics ............................................................................................................................. 33
Figure 15 - Email Alert Operational Status .............................................................................................................. 34
Figure 16 - Modify Ethernet (Wired) settings ........................................................................................................... 35
Figure 17 - Modify Wireless Settings ....................................................................................................................... 37
Figure 18 - Modify Radio Settings ........................................................................................................................... 40
Figure 19 - Scheduler Conguration ....................................................................................................................... 45
Figure 20 - Scheduler Conguration (Modify Rule) ................................................................................................. 46
Figure 21 - Scheduler Association Settings ............................................................................................................. 46
Figure 22 - Modify Virtual Access Point Settings ..................................................................................................... 48
Figure 23 - Modify Virtual Access Point Settings (Static WEP) ............................................................................... 50
Figure 24 - Modify Virtual Access Point Settings (IEEE802.1X) .............................................................................. 52
Figure 25 - Modify Virtual Access Point Settings (WPA Personal) .......................................................................... 53
Figure 26 - Modify Virtual Access Point Settings (WPA Enterprise) ........................................................................ 54
Figure 27 - Congure WDS Bridges ........................................................................................................................ 57
Figure 28 - Congure MAC Authentication .............................................................................................................. 59
Figure 29 - Modify Load Balancing Settings ............................................................................................................ 60
Figure 30 - Congure Managed AP Wireless Switch Parameters ........................................................................... 62
Figure 31 - Modify 802.1X Supplicant Authentication Settings ................................................................................63
Figure 32 - Congure Management Access Control Parameters ............................................................................ 64
Figure 33 - Congure Web Server Settings ............................................................................................................. 65
Figure 34 - SNMP Conguration ............................................................................................................................. 67
Figure 35 - Set SSH Status ..................................................................................................................................... 68
Figure 36 - Set Telnet Status ................................................................................................................................... 69
Figure 37 - Modify QoS Queue Parameters ............................................................................................................ 70
Figure 38 - Email Alerts Conguration ..................................................................................................................... 72
Figure 39 - Time Settings (NTP) .............................................................................................................................. 74
Figure 40 - SNMPv3 Views Conguration ............................................................................................................... 75
Figure 41 - SNMPv3 Groups Conguration ............................................................................................................. 76
Figure 42 - SNMPv3 User Conguration ................................................................................................................. 77
Figure 43 - SNMPv3 Targets Conguration ............................................................................................................. 78
Figure 44 - Manage this Access Point’s Conguration - Save (TFTP) .................................................................... 79
Figure 45 - Manage this Access Point’s Conguration - Save (HTTP) .................................................................... 79
Figure 46 - Conrmation Prompt ............................................................................................................................. 80
Figure 47 - Manage this Access Point’s Conguration - Restore (TFTP) ................................................................ 80
Figure 48 - Manage this Access Point’s Conguration - Restore (HTTP) ............................................................... 80
Figure 49 - Performing AP Maintenance ................................................................................................................. 81
Figure 50 - Manage Firmware (TFTP) ..................................................................................................................... 82
Figure 51 - Manage Firmware (HTTP) .................................................................................................................... 82
Figure 52 - Packet Capture Conguration & Settings ............................................................................................. 83
Figure 53 - Packet Capture Status .......................................................................................................................... 84
Figure 54 - Packet Capture Conguration ............................................................................................................... 84
Figure 55 - Packet File Capture .............................................................................................................................. 85
Figure 56 - Remote Packet Capture ........................................................................................................................ 86
Figure 57 - Packet Capture File Download ............................................................................................................. 87
Figure 58 - Congure Client QoS VAP Settings ...................................................................................................... 88
Figure 59 - Congure Client QoS ACL Settings ...................................................................................................... 90
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Unied Access Point Administrator’s Guide
Figure 60 - Congure Client QoS DiffServ Class Map Settings .............................................................................. 96
Figure 61 - Congure Client QoS DiffServ Policy Map Settings ............................................................................ 100
Figure 62 - QoS Conguration Status For Associated Clients ..............................................................................101
Figure 63 - Manage Access Points In The Cluster (Passive) ................................................................................ 104
Figure 64 - Manage Access Points In The Cluster (Active) ................................................................................... 105
Figure 65 - Manage Sessions Associated With The Cluster ................................................................................. 107
Figure 66 - Automatically Manage Channel Assignments ..................................................................................... 108
Figure 67 - View Neighboring Access Points ..........................................................................................................111
Figure 68 - Viewing Details For A Cluster Member ................................................................................................ 11 2
Figure 69 - VAP Conguration from the Web Interface ......................................................................................... 115
Figure 70 - Radio Conguration from the Web Interface ....................................................................................... 11 7
Figure 71 - WDS Conguration from the Web Interface ........................................................................................ 11 8
Figure 72 - Clustering APs by Using the Web Interface (Passive) ........................................................................ 119
Figure 73 - Clustering APs by Using the Web Interface (Active) ........................................................................... 120
Figure 74 - Conguring QoS by Using the Web Interface (ACL Name) ................................................................121
Figure 75 - Conguring QoS by Using the Web Interface (Rule1) ........................................................................ 121
Figure 76 - Conguring QoS by Using the Web Interface (Rule2) ........................................................................ 122
Figure 77 - Conguring QoS by Using the Web Interface (VAP QoS Parameters) ............................................... 122
Figure 78 - Conguring QoS by Using the Web Interface (Class Map Name) ...................................................... 123
Figure 79 - Conguring QoS by Using the Web Interface (Rule) .......................................................................... 123
Figure 80 - Congure Client QoS DiffServ Policy Map Settings (Policy Map Name) ............................................ 123
Figure 81 - Congure Client QoS DiffServ Policy Map Settings (Rule) ................................................................. 124
Figure 82 - Congure Client QoS VAP Settings .................................................................................................... 124
March 2012
Unied Access Point Administrator’s Guide
Page 6
Unied Access Point Administrator’s Guide
List of Tables
Table 1 - Typographical Conventions ...................................................................................................................... 10
Table 2 - Requirements for the Administrator’s Computer ....................................................................................... 12
Table 3 - Requirements for Wireless Clients ........................................................................................................... 12
Table 4 - Basic Settings Page ................................................................................................................................. 17
Table 5 - CLI Commands for Ethernet Setting ........................................................................................................ 19
Table 6 - CLI Commands for the 802.1X Supplicant ............................................................................................... 20
Table 7 - Logging Options ....................................................................................................................................... 24
Table 8 - Log Relay Host ......................................................................................................................................... 24
Table 9 - Transmit/Receive ...................................................................................................................................... 26
Table 10 - Associated Clients .................................................................................................................................. 26
Table 11 - TSPEC Client Associations ..................................................................................................................... 28
Table 12 - Rogue AP Detection ............................................................................................................................... 30
Table 13 - TSPEC Status and Statistics .................................................................................................................. 32
Table 14 - TSPEC AP Statistics ............................................................................................................................... 33
Table 15 - Radio Statistics Information .................................................................................................................... 34
Table 16 - Email Alert Status ................................................................................................................................... 34
Table 17 - Ethernet Settings .................................................................................................................................... 36
Table 18 - Wireless Settings .................................................................................................................................... 39
Table 19 - Radio Settings ........................................................................................................................................ 44
Table 20 - Scheduler Conguration ......................................................................................................................... 45
Table 21 - Scheduler Association Settings .............................................................................................................. 47
Table 22 - Virtual Access Point Settings .................................................................................................................. 50
Table 23 - Static WEP .............................................................................................................................................. 51
Table 24 - IEEE 802.1X ........................................................................................................................................... 53
Table 25 - WPA Personal ......................................................................................................................................... 54
Table 26 - WPA Enterprise ....................................................................................................................................... 56
Table 27 - WDS Settings ......................................................................................................................................... 57
Table 28 - WEP on WDS Links ................................................................................................................................ 58
Table 29 - WPA/PSK on WDS Links ........................................................................................................................ 58
Table 30 - MAC Authentication ................................................................................................................................ 60
Table 31 - RADIUS Server Attributes for MAC Authentication ................................................................................. 60
Table 32 - Load Balancing ....................................................................................................................................... 61
Table 33 - Managed Access Point ........................................................................................................................... 62
Table 34 - IEEE 802.1X Supplicant Authentication .................................................................................................. 63
Table 35 - Management ACL ................................................................................................................................... 64
Table 36 - Web Server Settings ............................................................................................................................... 66
Table 37 - SNMP Settings ....................................................................................................................................... 68
Table 38 - SSH Settings .......................................................................................................................................... 69
Table 39 - Telnet Settings ........................................................................................................................................ 69
Table 40 - QoS Settings .......................................................................................................................................... 72
Table 41 - Email Alert Conguration ........................................................................................................................ 73
Table 42 - NTP Settings ........................................................................................................................................... 74
Table 43 - SNMPv3 Views ....................................................................................................................................... 75
Table 44 - SNMPv3 Groups ..................................................................................................................................... 77
Table 45 - SNMPv3 Users ....................................................................................................................................... 77
Table 46 - SNMPv3 Targets ..................................................................................................................................... 78
Table 47 - Packet Capture Status ............................................................................................................................ 84
Table 48 - Packet Capture Conguration ................................................................................................................ 84
Table 49 - Packet File Capture ................................................................................................................................ 85
Table 50 - Remote Packet Capture ......................................................................................................................... 87
Table 51 - Packet Capture File Download ............................................................................................................... 87
Table 52 - VAP QoS Parameters ............................................................................................................................. 89
Table 53 - ACL Conguration ................................................................................................................................... 95
Table 54 - DiffServ Class Map ................................................................................................................................. 99
Table 55 - DiffServ Policy Map .............................................................................................................................. 101
Table 56 - Client QoS Status ................................................................................................................................. 102
Table 57 - Client QoS RADIUS Attributes .............................................................................................................. 103
Table 58 - Access Points in the Cluster ................................................................................................................. 105
Table 59 - Cluster Options ..................................................................................................................................... 105
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Unied Access Point Administrator’s Guide
Table 60 - Session Management ........................................................................................................................... 107
Table 61 - Channel Assignments ........................................................................................................................... 109
Table 62 - Last Proposed Changes ....................................................................................................................... 109
Table 63 - Advanced Channel Management Settings ........................................................................................... 110
Table 64 - Wireless Neighborhood Information ......................................................................................................111
Table 65 - Cluster Member Details ........................................................................................................................ 112
Table 66 - UAP Default Settings ............................................................................................................................ 11 4
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Unied Access Point Administrator’s Guide
Page 8
Unied Access Point Administrator’s Guide
Section 1 - About This Document
Section 1 - About This Document
This guide describes setup, conguration, administration and maintenance for the D-Link DWL-x600AP Unied Access
Point (UAP) on a wireless network.
Document Organization
The Unied Access Point Administrator’s Guide contains the following sections:
•) “Section 1 - About This Document” on page 9
•) “Section 2 - Getting Started” on page 11
•) “Section 3 - Viewing Access Point Status” on page 22
•) “Section 4 - Managing the Access Point” on page 35
•) “Section 5 - Conguring Access Point Services” on page 65
•) “Section 6 - Conguring SNMPv3” on page 75
•) “Section 7 - Maintaining the Access Point” on page 79
•) “Section 8 - Conguring Client Quality of Service (QoS)” on page 88
•) “Section 9 - Clustering Multiple APs” on page 104
•) “Appendix A - Default AP Settings” on page 113
•) “Appendix B - Conguration Examples” on page 115
Additional Documentation
The following documentation provides additional information about Unied Access Point software:
•) The Unied Access Point CLI Command Reference describes the commands available from the command-line interface (CLI) for managing, monitoring, and conguring the switch.
•) The User Manual for the D-Link Unied Wired and Wireless System provides information about setting up and managing the Unied Wireless Switch (UWS), including information about how to use the switch to manage
multiple UAPs.
•) Release notes for the D-Link Unied Wired and Wireless System detail the platform-specic functionality of the
software packages, including issues and workarounds.
Document Conventions
This section describes the conventions this document uses.
Note: A note provides more information about a feature or technology and cross-references to related topics.
Caution! A caution provides information about critical aspects of AP conguration, combinations of
settings, events, or procedures that can adversely affect network connectivity, security, and so on.
The following table describes the typographical conventions used in this guide.
Symbol Example Description
Bold Click Apply to save your settings. Menu titles, page names, and button names.
Blue Text See “Document Conventions” on
page 9
Courier Font WLAN-AP# show network
Courier Font Italics
Square Brackets [ ] [Value] Indicates an optional xed parameter.
March 2012
Value
Hyperlink text.
Screen text, le names, commands, user-typed
command-line entries.
Command parameter, which might be a variable or
xed value.
Unied Access Point Administrator’s Guide
Page 9
Unied Access Point Administrator’s Guide
Symbol Example Description
Curly Braces {} {Choice1 | Choice2} Indicates that you must select a parameter from the
list of choices.
Vertical Bars | Choice1 | Choice2 Separates the mutually exclusive choices.
Braces within square brackets [{}]
[{Choice1 | Choice2}] Indicate a choice within an optional element.
Table 1 - Typographical Conventions
Section 1 - About This Document
Online Help, Supported Browsers, and Limitations
Online help for the UAP Administration Web pages provides information about all elds and features available from
the user interface (UI). The information in the online help is a subset of the information available in the Unied Access Point Administrator’s Guide.
Online help information corresponds to each page on the UAP Administration UI.
For information about the settings on the current page, click the Help link on the upper right side of a page.
The following gure shows an example of the online help available from the links on the user interface.
March 2012
Figure 1 - Administrator UI Online Help
Unied Access Point Administrator’s Guide
Page 10
Unied Access Point Administrator’s Guide
Section 2 - Getting Started
Section 2 - Getting Started
The D-Link DWL-x600AP unied access point (UAP) provides continuous, high-speed access between wireless devices and Ethernet devices. It is an advanced, standards-based solution for wireless networking in businesses of
any size. The UAP enables wireless local area network (WLAN) deployment while providing state-of-the-art wireless networking features.
The UAP can operate in two modes: Standalone Mode or Managed Mode. In Standalone Mode, the UAP acts as an individual access point in the network, and you manage it by using the Administrator Web User Interface
(UI), command-line interface (CLI), or SNMP. In Managed Mode, the UAP is part of the D-Link Unied Wired and Wireless System, and you manage it by using the D-Link Unied Wireless Switch. If an AP is in Managed Mode, the
Administrator Web UI, Telnet, SSH, and SNMP services are disabled.
This document describes how to perform the setup, management, and maintenance of the UAP in Standalone Mode.
For information about conguring the AP in Managed Mode by using the D-Link Unied Wireless Switch, see the User Manual for the switch.
Before you power on a new UAP, review the following sections to check required hardware and software components,
client congurations, and compatibility issues. Make sure you have everything you need for a successful launch and
test of your new or extended wireless network.
The DWL-6600AP and DWL-8600AP are dual-radio access points and support the IEEE 802.11a, 802.11b, 802.11g, and 802.11n modes. The DWL-2600AP and DWL-3600AP are single-radio access points and support the IEEE
802.11b, IEEE 802.11g, and 802.11n (2.4 GHz) modes.
This section contains the following topics:
•) “Administrator’s Computer Requirements” on page 11
•) “Wireless Client Requirements” on page 12
•) “Dynamic and Static IP Addressing on the AP” on page 13
•) “Installing the UAP” on page 13
•) “Basic Settings” on page 16
•) “Using the CLI to View the IP Address” on page 17
•) “Conguring the Ethernet Settings” on page 18
•) “Conguring IEEE 802.1X Authentication” on page 19
•) “Verifying the Installation” on page 20
•) “Conguring Security on the Wireless Access Point” on page 21
To manage the UAP by using the Web interface or by using the CLI through Telnet or SSH, the AP needs an IP
address. If you use VLANs or IEEE 802.1X Authentication (port security) on your network, you might need to congure
additional settings on the AP before it can connect to the network.
Note: The WLAN AP is not designed to function as a gateway to the Internet. To connect your WLAN to other LANs or the Internet, you need a gateway device.
Administrator’s Computer Requirements
The following table describes the minimum requirements for the administrator’s computer for conguration and
administration of the UAP through a Web-based user interface (UI).
Required Software or Component Description
Serial or Ethernet Connection to the
Access Point
March 2012
The computer used to congure the rst access point must be connected to the access point by a serial cable or an Ethernet cable.
Unied Access Point Administrator’s Guide
Page 11
Unied Access Point Administrator’s Guide
Section 2 - Getting Started
Required Software or Component Description
Wireless Connection to the Network After initial conguration and launch of the rst access point on your
new wireless network, you can make subsequent conguration changes
through the Administration Web pages using a wireless connection to the internal network.
For wireless connection to the access point, your administration device will need Wi-Fi capability similar to that of any wireless client:
•) Portable or built-in Wi-Fi client adapter that supports one or more of the IEEE 802.11 modes in which you plan to run the access point.
•) Wireless client software congured to associate with the UAP.
Web Browser and Operating System Conguration and administration of the UAP is provided through a Web-
based user interface hosted on the access point.
We recommend using one of the following supported Web browsers to access the access point Administration Web pages:
•) Microsoft
®
Internet Explorer® version 7.x or 8.x (with up-to-date patch
level for either major version)
•) Mozilla® Firefox version 3.5 or later
•) Safari 5 and later versions
The administration Web browser must have JavaScript™ enabled to
support the interactive features of the administration interface.
Security Settings Ensure that security is disabled on the wireless client used to initially
congure the access point.
Table 2 - Requirements for the Administrator’s Computer
Wireless Client Requirements
The UAP provides wireless access to any client with a properly congured Wi-Fi client adapter for the 802.11 mode
in which the access point is running. The UAP supports multiple client operating systems. Clients can be laptop or desktop computers, personal digital assistants (PDAs), or any other hand-held, portable or stationary device equipped
with a Wi-Fi adapter and supporting drivers.
To connect to the access point, wireless clients need the software and hardware described in the following table.
Required Component Description
Wi-Fi Client Adapter Portable or built-in Wi-Fi client adapter that supports one or more of the
IEEE 802.11 modes in which you plan to run the access point.
Wireless Client Software Client software, such as Microsoft Windows Supplicant, congured to
associate with the UAP.
Client Security Settings Security should be disabled on the client used to do initial conguration of
the access point.
If the Security mode on the access point is set to anything other than plain
text, wireless clients will need to set a prole to the authentication mode
used by the access point and provide a valid username and password,
certicate, or similar user identity proof. Security modes are Static WEP, IEEE 802.1X, WPA with RADIUS server, and WPA-PSK.
March 2012
For information about conguring security on the access point, see “Virtual
Access Point Settings” on page 47.
Table 3 - Requirements for Wireless Clients
Unied Access Point Administrator’s Guide
Page 12
Unied Access Point Administrator’s Guide
Section 2 - Getting Started
Dynamic and Static IP Addressing on the AP
When you power on the access point, the built-in DHCP client searches for a DHCP server on the network in order
to obtain an IP Address and other network information. If the AP does not nd a DHCP server on the network, the AP
continues to use its default Static IP Address (10.90.90.91) until you re-assign it a new static IP address (and specify a static IP addressing policy) or until the AP successfully receives network information from a DHCP server.
To change the connection type and assign a static IP address by using the CLI, see “Conguring the Ethernet
Settings” on page 18 or, by using the Web UI, see “Ethernet Settings” on page 35.
Caution! If you do not have a DHCP server on your internal network, and do not plan to use one,
the rst thing you must do after powering on the access point is change the connection type from
DHCP to static IP. You can either assign a new static IP address to the AP or continue using the default address. We recommend assigning a new static IP address so that if you bring up another WLAN AP on the same network, the IP address for each AP will be unique.
Recovering an IP Address
If you experience trouble communicating with the access point, you can recover a static IP address by resetting the AP conguration to the factory defaults (see “Resetting the Factory Default Conguration” on page 81), or you can get a dynamically assigned address by connecting the AP to a network that has a DHCP server.
Discovering a Dynamically Assigned IP Address
If you have access to the DHCP server on your network and know the MAC address of your AP, you can view the new IP address associated with the MAC address of the AP.
If you do not have access to the DHCP server that assigned the IP address to the AP or do not know the MAC address
of the AP, you might need to use the CLI to nd out what the new IP address is. For information about how to discover
a dynamically assigned IP address, see “Using the CLI to View the IP Address” on page 17.
Installing the UAP
To access the Administration Web UI, you enter the IP address of the AP into a Web browser. You can use the default IP address of the AP (10.90.90.91) to log on to the AP and assign a static IP address, or you can use a DHCP server on you network to assign network information to the AP. The DHCP client on the AP is enabled by default.
To install the UAP, use the following steps:
1.) Connect the AP to an administrative PC by using a LAN connection or a direct-cable connection.
•) To use a LAN connection, connect one end of an Ethernet cable to the network port on the access point and the other end to the same hub where your PC is connected, as shown in the following gure.
The hub or switch you use must permit broadcast signals from the access point to reach all other devices on the network.
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Section 2 - Getting Started
•) To use a direct-cable connection, connect one end of an Ethernet straight-through or crossover cable to the network port on the access point and the other end of the cable to the Ethernet port on the PC, as shown in the following gure. You can also use a serial cable to connect the serial port on the AP to a serial port on the
administrative computer.
For initial conguration with a direct Ethernet connection and no DHCP server, be sure to set your PC to a
static IP address in the same subnet as the default IP address on the access point. (The default IP address for the access point is 10.90.90.91.)
If you use this method, you will need to recongure the cabling for subsequent startup and deployment of the
access point so that the access point is no longer connected directly to the PC but instead is connected to the LAN (either by using a hub or directly).
Note: It is possible to detect access points on the network with a wireless connection. However, we strongly advise against using this method. In most environments you may have no way of knowing whether you are actually connecting to the intended AP. Also, many of the initial
conguration changes required will cause you to lose connectivity with the AP over a wireless
connection.
2.) Connect the power adapter to the power port on the back of the access point, and then plug the other end of the power cord into a power outlet.
3.) Use your Web browser to log on to the UAP Administration Web pages.
•) If the AP did not acquire an IP address from a DHCP server on your network, enter 10.90.90.91 in the address
eld of your browser, which is the default IP address of the AP.
•) If you used a DHCP server on your network to automatically congure network information for the AP, enter the
new IP address of the AP into the Web browser.
•) If you used a DHCP server and you do not know the new IP address of the AP, use the following procedures to
obtain the information:
•) Connect a serial cable from the administrative computer to the AP and use a terminal emulation program to
access the command-line interface (CLI).
•) At the login prompt, enter admin for the user name and admin for the password. At the command prompt,
enter get management.
•) The command output displays the IP address of the AP. Enter this address in the address eld of your browser.
For a more detailed explanation about how to log on to the CLI by using the console port, see “Using the CLI
to View the IP Address” on page 24.
4.) When prompted, enter admin for the user name and admin for the password, then click Logon.
When you rst log in, the Basic Settings page for UAP administration is displayed, as the following gure
shows.
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Figure 2 - Web UI Login Prompt
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Section 2 - Getting Started
Figure 3 - Provide Basic Settings
5.) Verify the settings on the Basic Settings page.
•) Review access point description and provide a new administrator password for the access point if you do not
want to use the default password, which is admin.
•) Click the Apply button to activate the wireless network with these new settings.
Note: The changes you make are not saved or applied until you click Apply. Changing some
access point settings might cause the AP to stop and restart system processes. If this happens, wireless clients will temporarily lose connectivity. We recommend that you change access point
settings when WLAN trafc is low.
For information about the elds and conguration options on the Basic Settings page, see “Basic Settings” on
page 16.
6.) If you do not have a DHCP server on the management network and do not plan to use one, you must change the Connection Type from DHCP to Static IP.
You can either assign a new Static IP address to the AP or continue using the default address. We recommend assigning a new Static IP address so that if you bring up another UAP on the same network, the IP address for each AP will be unique. To change the connection type and assign a static IP address, see “Conguring the
Ethernet Settings” on page 18 (CLI) or “Ethernet Settings” on page 35 (Web).
7.) If your network uses VLANs, you might need to congure the management VLAN ID or untagged VLAN ID on the UAP in order for it to work with your network.
For information about how to congure VLAN information, see “Conguring the Ethernet Settings” on page 18 (CLI) or “Ethernet Settings” on page 35 (Web).
8.) If your network uses IEEE 802.1X port security for network access control, you must congure the 802.1X supplicant information on the AP.
For information about how to congure the 802.1X user name and password, see “Conguring IEEE 802.1X
Authentication” on page 19.
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Section 2 - Getting Started
Basic Settings
From the Basic Settings page, you can view various information about the UAP, including IP and MAC address information, and congure the administrator password for the UAP. The following table describes the elds and conguration options on the Basic Settings page.
Field Description
IP Address Shows the IP address assigned to the AP. This eld is not editable on this page because
the IP address is already assigned (either by DHCP, or statically through the Ethernet
Settings page).
IPv6 Address Shows the IPv6 address assigned to the AP. This eld is not editable on this page because
the IP address is already assigned (either by DHCPv6, or statically through the Ethernet
Settings page).
IPv6 Address Status Shows the operational status of the static IPv6 address assigned to the management
interface of the AP. The possible values are Operational and Tentative.
IPv6 Autocongured
Global Addresses
IPv6 Link Local
Address
MAC Address Shows the MAC address of the AP. The address shown here is the MAC address
Firmware Version Shows version information about the rmware currently installed on the AP. As new
Product Identier Identies the AP hardware model.
Hardware Version Identies the AP hardware version.
Serial Number Shows the AP serial number. Device Name Generic name to identify the type of hardware.
Device Description Provides information about the product hardware.
Current Password Enter the current administrator password. You must correctly enter the current password
New Password Enter a new administrator password. The characters you enter are displayed as bullet
Shows each automatically-congured global IPv6 address for the management interface of
the AP.
Shows the IPv6 Link Local address, which is the IPv6 address used by the local physical
link. The link local address is not congurable and is assigned by using the IPv6 Neighbor
Discovery process.
associated with the management interface. This is the address by which the AP is known externally to other networks.
versions of the WLAN AP rmware become available, you can upgrade the rmware on
your APs.
before you are able to change it.
characters to prevent others from seeing your password as you type.
The administrator password must be an alphanumeric string of up to 8 characters. Do not use special characters or spaces.
Note: As an immediate rst step in securing your wireless network, we recommend that
you change the administrator password from the default.
Conrm New
Password
Baud Rate Select a baud rate for the serial port connection. The baud rate on the AP must match the
System Name Enter a name for the AP. This name appears only on the Basic Settings page and is a
March 2012
Re-enter the new administrator password to conrm that you typed it as intended.
baud rate on the terminal or terminal emulator to connect to the AP command-line interface (CLI) by using a serial (console) connection.
The following baud rates are available:
•) 9600
•) 19200
•) 38400
•) 57600
•) 115200
name to identify the AP to the administrator. Use up to 64 alphanumeric characters, for example My AP.
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Field Description
System Contact Enter the name, e-mail address, or phone number of the person to contact regarding
issues related to the AP.
System Location Enter the physical location of the AP, for example Conference Room A.
Table 4 - Basic Settings Page
Section 2 - Getting Started
Connecting to the AP Web Interface by Using the IPv6 Address
To connect to the AP by using the IPv6 global address or IPv6 link local address, you must enter the AP address into your browser in a special format.
Note: The following instructions and examples work with Microsoft Internet Explorer 7 (IE7) and
might not work with other browsers.
To connect to an IPv6 global address, add square brackets around the IPv6 address. For example, if the AP global IPv6 address is 2520::230:abff:fe00:2420, type the following address into the IE7 address eld: http://
[2520::230:abff:fe00:2420].
To connect to the iPv6 link local address, replace the colons (:) with hyphens (-), add the interface number preceded
with an “s,” then add “.ipv6-literal.net.” For example, if the AP link local address is fe80::230:abff:fe00:2420, and the Windows interface is dened as “%6,” type the following address into the IE7 address eld: http://fe80--230-abff-fe00-
2420s6.ipv6-literal.net.
Using the CLI to View the IP Address
The DHCP client on the UAP is enabled by default. If you connect the UAP to a network with a DHCP server, the AP automatically acquires an IP address. To manage the UAP by using the Administrator UI, you must enter the IP address of the access point into a Web browser.
If a DHCP server on your network assigns an IP address to the UAP, and you do not know the IP address, use the following steps to view the IP address of the UAP:
1.) Using a null-modem cable, connect a VT100/ANSI terminal or a workstation to the console (serial) port.
If you attached a PC, Apple, or UNIX workstation, start a terminal-emulation program, such as HyperTerminal or
TeraTerm.
2.) Congure the terminal-emulation program to use the following settings:
•) Baud rate: 115200 bps
•) Data bits: 8
•) Parity: none
•) Stop bit: 1
•) Flow control: none
3.) Press the return key, and a login prompt should appear. The login name is admin. The default password is admin. After a successful login, the screen shows the (Access Point Name)# prompt.
4.) At the login prompt, enter get management. Information similar to the following prints to the screen.
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Figure 4 - Command Line Interface (CLI) Connection
Section 2 - Getting Started
Conguring the Ethernet Settings
The default Ethernet settings, which include DHCP and VLAN information, might not work for all networks.
By default, the DHCP client on the UAP automatically broadcasts requests for network information. If you want to
use a static IP address, you must disable the DHCP client and manually congure the IP address and other network
information.
The management VLAN is VLAN 1 by default. This VLAN is also the default untagged VLAN. If you already have
a management VLAN congured on your network with a different VLAN ID, you must change the VLAN ID of the
management VLAN on the access point.
For information about using the Web interface to congure the Ethernet settings, see “Ethernet Settings” on page
35. You can also use the CLI to congure the Ethernet settings, which the following section describes.
Using the CLI to Congure Ethernet Settings
Use the commands shown in the following table to view and set values for the Ethernet (wired) interface. For more information about each setting, see the description for the eld in the following table.
Action Commands
Get the DNS Name
Set the DNS Name
Get Current Settings for the Ethernet (Wired) Internal
Interface
Set the management VLAN ID
View untagged VLAN information
Enable the untagged VLAN
Disable the untagged VLAN
Set the untagged VLAN ID
View the connection type
get host id
set host id <host_name>
For example:
set host id lab-ap
get management
set management vlan-id <1-4094>
get untagged-vlan
set untagged-vlan status up
set untagged-vlan status down
set untagged-vlan vlan-id <1-4094>
get management dhcp-status
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Action Commands
Use DHCP as the connection type
Use a Static IP as the connection type
Set the Static IP address
set management dhcp-status up
set management dhcp-status down
set management static-ip <ip_address>
For example:
set management static-ip 10.10.12.221
Set a Subnet Mask
set management static-mask <netmask>
For example:
set management static-mask 255.255.255.0
Set the Default Gateway
set static-ip-route gateway <ip_address>
For example:
set static-ip-route gateway 10.10.12.1
View the DNS Nameserver mode Dynamic= up
get host dns-via-dhcp
Manual=down
Set DNS Nameservers to Use Static IP Addresses (Dynamic to Manual Mode)
set host dns-via-dhcp down set host static-dns-1 <ip_address> set host static-dns-2 <ip_address>
For example:
set host static-dns-1 192.168.23.45
Set DNS Nameservers to Use DHCP IP Addressing
set host dns-via-dhcp up
(Manual to Dynamic Mode)
Table 5 - CLI Commands for Ethernet Setting
Section 2 - Getting Started
In the following example, the administrator uses the CLI to set the management VLAN ID to 123 and to disable the
untagged VLAN so that all trafc is tagged with a VLAN ID.
DLINK-WLAN-AP# set management vlan-id 123 DLINK-WLAN-AP# set untagged-vlan status down DLINK-WLAN-AP# get management Property Value
-------------------------------------------­vlan-id 123 interface brtrunk static-ip 10.90.90.91 static-mask 255.0.0.0 ip 10.90.90.91 mask 255.0.0.0 mac 00:05:5E:80:70:00 dhcp-status down ipv6-status up
ipv6-autocong-status up
static-ipv6 ::
static-ipv6-prex-length 0
DLINK-WLAN-AP# get untagged-vlan Property Value
--------------­vlan-id 1 status down
DLINK-WLAN-AP#
Conguring IEEE 802.1X Authentication
On networks that use IEEE 802.1X, port-based network access control, a supplicant (client) cannot gain access to the network until the 802.1X authenticator grants access. If your network uses 802.1X, you must congure 802.1X
authentication information that the AP can supply to the authenticator.
If your network uses IEEE 802.1X see “Conguring IEEE 802.1X Authentication” on page 19 for information about how to congure 802.1X by using the Web interface.
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Section 2 - Getting Started
Using the CLI to Congure 802.1X Authentication Information
The following table shows the commands used to congure the 802.1X supplicant information using the CLI.
Action Command
View 802.1X supplicant settings Enable 802.1X supplicant Disable 802.1X supplicant Set the 802.1X user name Set the 802.1X password
Table 6 - CLI Commands for the 802.1X Supplicant
In the following example, the administrator enables the 802.1X supplicant and sets the user name to wlanAP and the
password to test1234.
DLINK-WLAN-AP# set dot1x-supplicant status up DLINK-WLAN-AP# set dot1x-supplicant user wlanAP DLINK-WLAN-AP# set dot1x-supplicant password test1234 DLINK-WLAN-AP# get dot1x-supplicant
Property Value
-------------------------­status up user wlanAP eap-method md5 debug off cert-present no
cert-exp-date Not Present
get dot1x-supplicant
set dot1x-supplicant status up
set dot1x-supplicant status down
set dot1x-supplicant user <name>
set dot1x-supplicant password <password>
DLINK-WLAN-AP#
Verifying the Installation
Make sure the access point is connected to the LAN and associate some wireless clients with the network. Once you
have tested the basics of your wireless network, you can enable more security and ne-tune the AP by modifying advanced conguration features.
1.) Connect the access point to the LAN.
•) If you congured the access point and administrator PC by connecting both into a network hub, then your
access point is already connected to the LAN. The next step is to test some wireless clients.
•) If you congured the access point by using a direct cable connection from your computer to the access point,
do the following procedures:
•) Disconnect the cable from the computer and the access point.
•) Connect an Ethernet cable from the access point to the LAN.
•) Connect your computer to the LAN by using an Ethernet cable or a wireless card.
2.) Test LAN connectivity with wireless clients.
Test the UAP by trying to detect it and associate with it from some wireless client devices. For information about
requirements for these clients, see “Wireless Client Requirements” on page 12.
3.) Secure and congure the access point by using advanced features. Once the wireless network is up and you can connect to the AP with some wireless clients, you can add in layers
of security, create multiple virtual access points (VAPs), and congure performance settings.
Note: The WLAN AP is not designed for multiple, simultaneous conguration changes. If more
than one administrator is logged onto the Administration Web pages and making changes to the
conguration, there is no guarantee that all conguration changes specied by multiple users will
be applied.
By default, no security is in place on the access point, so any wireless client can associate with it and access
your LAN. An important next step is to congure security, as described in “Virtual Access Point Settings” on page
47.
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Section 2 - Getting Started
Conguring Security on the Wireless Access Point
You congure secure wireless client access by conguring security for each virtual access point (VAP) that you enable. You can congure up to 16 VAPs per radio that simulate multiple APs in one physical access point. By default, only one VAP is enabled. For each VAP, you can congure a unique security mode to control wireless client access.
Each radio has 16 VAPs, with VAP IDs from 0-15. By default, only VAP 0 on each radio is enabled. VAP0 has the
following default settings:
•) VLAN ID: 1
•) Broadcast SSID: Enabled
•) SSID: dlink1
•) Security: None
•) MAC Authentication Type: None
•) Redirect Mode: None
All other VAPs are disabled by default. The default SSID for VAPs 1–15 is ”dlinkx” where x is the VAP ID.
To prevent unauthorized access to the UAP, we recommend that you select and congure a security option other than
None for the default VAP and for each VAP that you enable.
For information about how to congure the security settings on each VAP, see “Virtual Access Point Settings” on page
47.
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Section 3 - Viewing Access Point Status
Section 3 - Viewing Access Point Status
This section describes the information you can view from the tabs under the Status heading on the Administration Web UI. This section contains the following subsections:
•) “Viewing Interface Status” on page 22
•) “Viewing Events” on page 23
•) “Viewing Transmit and Receive Statistics” on page 25
•) “Viewing Associated Wireless Client Information” on page 26
•) “Viewing TSPEC Client Associations” on page 26
•) “Viewing Rogue AP Detection” on page 28
•) “Viewing Managed AP DHCP Information” on page 31
•) “Viewing TSPEC Status and Statistics Information” on page 31
•) “Viewing TSPEC AP Statistics Information” on page 32
•) “Viewing Radio Statistics Information” on page 33
•) “Viewing Email Alert Operational Status” on page 34
Note: The web-based UI images show the DWL-8600AP administration pages. Pages for the DWL-2600AP or DWL-3600AP will display information for one radio only.
Viewing Interface Status
To monitor Ethernet LAN (wired) and wireless LAN (WLAN) settings, click the Interfaces tab.
Figure 5 - Viewing Interface Status
This page displays the current settings of the UAP. It displays the Wired Settings and the Wireless Settings.
Wired Settings (Internal Interface)
The Internal interface includes the Ethernet MAC Address, Management VLAN ID, IP Address (IPv4 and IPv6),
Subnet Mask, and DNS information. To change any of these settings, click the Edit link. After you click Edit, you are redirected to the Ethernet Settings page.
For information about conguring these settings, see “Conguring the Ethernet Settings” on page 18.
Wireless Settings
The Radio Interface includes the AeroScout™ Engine Communication status, Radio Mode and Channel. The
Wireless Settings section also shows the MAC address (read-only) associated with each radio interface.
To change the Radio Mode or Channel settings, click the Edit link. After you click Edit, you are redirected to the
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Modify Wireless Settings page.
For information about conguring these settings, see “Wireless Settings” on page 37 and “Modifying Radio Settings”
on page 40.
Section 3 - Viewing Access Point Status
Viewing Events
The Events page shows real-time system events on the AP such as wireless clients associating with the AP and being authenticated.
To view system events, click the Events tab.
Figure 6 - Viewing Events
From the Events page, you can perform the following tasks:
•) View the most recent, high-level events generated by this AP.
•) Enable and congure Persistent logging to write system event logs to non-volatile memory so that the events
are not erased when the system reboots.
•) Set a Severity Level to determine what category of log messages are displayed.
•) Set Depth to determine how many log messages are displayed in the Event log.
•) Enable a remote log relay host to capture all system events and errors in a Kernel Log.
Note: The AP acquires its date and time information using the network time protocol (NTP). This
data is reported in UTC format (also known as Greenwich Mean Time). You need to convert the
reported time to your local time.
Conguring Persistent Logging Options
If the system unexpectedly reboots, log messages can be useful to diagnose the cause. However, log messages are erased when the system reboots unless you enable persistent logging.
Caution! Enabling persistent logging can wear out the ash (non-volatile) memory and degrade
network performance. You should only enable persistent logging to debug a problem. Make sure
you disable persistent logging after you nish debugging the problem.
To congure persistent logging on the Events page, set the persistence, severity, and depth options as described in
the following table, and then click Apply.
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Field Description
Persistence Choose Enabled to save system logs to non-volatile memory so that the logs are not erased
when the AP reboots. Choose Disabled to save system logs to volatile memory. Logs in volatile memory are deleted when the system reboots.
Severity Specify the severity level of the log messages to write to non-volatile memory. For example,
if you specify 2, critical, alert, and emergency logs are written to non-volatile memory. Error
messages with a severity level of 3 – 7 are written to volatile memory.
•) 0 — emergency
•) 1 — alert
•) 2 — critical
•) 3 — error
•) 4 — warning
•) 5 — notice
•) 6 — info
•) 7 — debug
Depth You can store up to 128 messages in non-volatile memory. Once the number you congure
in this eld is reached, the oldest log event is overwritten by the new log event.
Table 7 - Logging Options
Note: To apply your changes, click Apply. Changing some settings might cause the AP to stop and restart system processes. If this happens, wireless clients will temporarily lose connectivity.
We recommend that you change AP settings when WLAN trafc is low.
Section 3 - Viewing Access Point Status
Conguring the Log Relay Host for Kernel Messages
The Kernel Log is a comprehensive list of system events (shown in the System Log) and kernel messages such as
error conditions, like dropping frames.
You cannot view kernel log messages directly from the Administration Web UI for an AP. You must rst set up a remote server running a syslog process and acting as a syslog log relay host on your network. Then, you can congure the
UAP to send syslog messages to the remote server.
Remote log server collection for AP syslog messages provides the following features:
•) Allows aggregation of syslog messages from multiple APs
•) Stores a longer history of messages than kept on a single AP
•) Triggers scripted management operations and alerts
To use Kernel Log relaying, you must congure a remote server to receive the syslog messages. The procedure to congure a remote log host depends on the type of system you use as the remote host.
Note: The syslog process will default to use port 514. We recommend keeping this default port.
However; If you choose to recongure the log port, make sure that the port number you assign to
syslog is not being used by another process.
Enabling or Disabling the Log Relay Host on the Events Page
To enable and congure Log Relaying on the Events page, set the Log Relay options as described in the following table, and then click Apply.
Field Description
Relay Log Select Enabled to allow the UAP to send log messages to a remote host. Select Disabled
to keep all log messages on the local system.
Relay Host Specify the IP Address or DNS name of the remote log server.
Relay Port Specify the Port number for the syslog process on the Relay Host.
The default port is 514.
Table 8 - Log Relay Host
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Note: To apply your changes, click Apply. Changing some settings might cause the AP to stop and restart system processes. If this happens, wireless clients will temporarily lose connectivity.
We recommend that you change AP settings when WLAN trafc is low.
If you enabled the Log Relay Host, clicking Apply will activate remote logging. The AP will send its kernel messages
real-time for display to the remote log server monitor, a specied kernel log le, or other storage, depending on how you congured the Log Relay Host.
If you disabled the Log Relay Host, clicking Apply will disable remote logging.
Section 3 - Viewing Access Point Status
Viewing Transmit and Receive Statistics
The Transmit/Receive page provides some basic information about the current AP and a real-time display of the
transmit and receive statistics for the Ethernet interface on the AP and for the VAPs on all supported radio interfaces. All transmit and receive statistics shown are totals since the AP was last started. If you reboot the AP, these gures
indicate transmit and receive totals since the reboot.
To view transmit and receive statistics for the AP, click the Transmit/Receive page.
Figure 7 - Viewing Trafc Statistics
Field Description
Interface The name of the Ethernet or VAP interface.
Status Shows whether the interface is up or down. MAC Address MAC address for the specied interface. The UAP has a unique MAC address for each
interface. Each radio has a different MAC address for each interface on each of its two
radios.
VLAN ID Virtual LAN (VLAN) ID.
You can use VLANs to establish multiple internal and guest networks on the same AP. The VLAN ID is set on the VAP page. (See “Conguring Load Balancing” on page 60)
Name (SSID) Wireless network name. Also known as the SSID, this alphanumeric key uniquely identies a
wireless local area network. The SSID is set on the VAP page. (See “Conguring Load Balancing” on page 60)
Transmit and Receive Information
Total Packets Indicates total packets sent (in Transmit table) or received (in Received table) by this AP.
Total Bytes Indicates total bytes sent (in Transmit table) or received (in Received table) by this AP.
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Field Description
Total Drop Packets Indicates total number of packets sent (in Transmit table) or received (in Received table) by
this AP that were dropped.
Total Drop Bytes Indicates total number of bytes sent (in Transmit table) or received (in Received table) by
this AP that were dropped.
Errors Indicates total errors related to sending and receiving data on this AP.
Table 9 - Transmit/Receive
Section 3 - Viewing Access Point Status
Viewing Associated Wireless Client Information
To view the client stations associated with a particular access point, click the Client Associations tab.
Figure 8 - Viewing Client Association Information
The associated stations are displayed along with information about packet trafc transmitted and received for each
station.
The following describes the elds on the Client Associations page.
Field Description
Network Shows which VAP the client is associated with. For example, an entry of wlan0vap2 means
the client is associated with Radio 1, VAP 2. An entry of wlan0 means the client is associated with VAP 0 on Radio 1. An entry of wlan1 means the client is associated with VAP 0 on Radio 2.
Station Shows the MAC address of the associated wireless client. Status The Authenticated and Associated Status shows the underlying IEEE 802.11 authentication
and association status, which is present no matter which type of security the client uses to
connect to the AP. This status does not show IEEE 802.1X authentication or association
status.
Some points to keep in mind with regard to this eld are:
•) If the AP security mode is None or Static WEP, the authentication and association
status of clients showing on the Client Associations page will be in line with what is expected; that is, if a client shows as authenticated to the AP, it will be able to transmit
and receive data. (This is because Static WEP uses only IEEE 802.11 authentication.)
•) If the AP uses IEEE 802.1X or WPA security, however, it is possible for a client association to show on this page as authenticated (via the IEEE 802.11 security) but
actually not be authenticated to the AP via the second layer of security.
From Station Shows the number of packets and bytes received from the wireless client and the number of
packets and bytes that were dropped after being received.
To Station Shows the number of packets and bytes transmitted from the AP to the wireless client and
the number of packets and bytes that were dropped upon transmission.
Table 10 - Associated Clients
Viewing TSPEC Client Associations
The TSPEC Client Association Status and Statistics page provides some basic information about the client
associations status and a real-time display of the transmit and receive statistics for the TSPEC clients. All transmit and
receive statistics shown are totals since the client association started.
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Section 3 - Viewing Access Point Status
A TSPEC is a trafc specication that is sent from a QoS-capable wireless client to an AP requesting a certain amount of network access for the trafc stream (TS) it represents. A trafc stream is a collection of data packets identied by the wireless client as belonging to a particular user priority. An example of a voice trafc stream is a Wi-Fi CERTIFIED™ telephone handset that marks its codec-generated data packets as voice priority trafc. An example of a video trafc stream is a video player application on a wireless laptop that prioritizes a video conference feed from a
corporate server.
To view TSPEC client association statistics, click the TSPEC Client Associations tab.
Figure 9 - Viewing TSPEC Client Associations
The following table describes the information provided on the TSPEC Client Association Status and Statistics page.
Field Description
Status
Network Radio interface used by the client.
Station Client station MAC address.
TS Identier TSPEC Trafc Session Identier (range 0-7).
Access Category TS Access Category (voice or video).
Direction The trafc direction for this TS. Direction can be:
•) uplink
•) downlink
•) bidirectional
User Priority The User Priority (UP) for this TS. The UP is sent with each packet in the UP portion of the
IP header. Typical values are:
•) 6 or 7 for voice
•) 4 or 5 for video
The value may differ depending on other priority trafc sessions.
Medium Time The time (in 32 microsecond per second units) that the TS trafc occupies the transmission
medium.
Excess Usage Events
The number of times the client has exceeded the medium time established for its TSPEC.
Minor, infrequent violations are ignored.
VAP The Virtual Access Point associated with this TS client.
MAC Address The Virtual Access Point MAC address. SSID The service set identier associated with this TS client.
Statistics
Network Radio interface used by the client.
Station Client station MAC address.
TS Identier TSPEC Trafc Session Identier (range 0-7).
Access Category TS Access Category (voice or video).
Direction The trafc direction for this TS. Direction can be:
•) uplink
•) downlink
•) bidirectional
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Field Description
From Station Shows the number of packets and bytes received from the wireless client and the number
of packets and bytes that were dropped after being received. Also shows the number of packets:
•) in excess of an admitted TSPEC.
•) for which no TSPEC has been established when admission is required by the AP.
To Station Shows the number of packets and bytes transmitted from the AP to the wireless client and
the number of packets and bytes that were dropped upon transmission. Also shows the number of packets:
•) in excess of an admitted TSPEC.
•) for which no TSPEC has been established when admission is required by the AP.
Table 11 - TSPEC Client Associations
Section 3 - Viewing Access Point Status
Link Integrity Monitoring
The UAP provides link integrity monitoring to continually verify its connection to each associated client. To do this,
the AP sends data packets to clients every few seconds when no other trafc is passing. This allows the AP to detect when a client goes out of range, even during periods when no normal trafc is exchanged. The client connection
drops off the list within 300 seconds if these data packets are not acknowledged, even if no disassociation message is received.
Viewing Rogue AP Detection
The status page to view Rogue AP Detection information provides real-time statistics for all APs within range of the AP on which you are viewing the Administration Web pages. When AP detection is enabled, the radio will periodically switch from its operating channel to scan other channels within the same band. Click Refresh to update the screen and display the most current information.
The Rogue AP Detection page contains the following two lists:
•) Detected Rogue AP List — Lists all APs within range of the AP that have not been acknowledged as known APs.
•) Known AP List — Lists all APs within range of the AP that have been acknowledged as known APs either by
clicking the Grant button associated with an AP in the Detected Rogue AP List or by appearing in an imported AP list.
To view information about other access points on the wireless network, click the Rogue AP Detection tab.
Figure 10 - Viewing Rogue and Known Access Points
You must enable the AP detection on a radio in order to collect information about other APs within range.
The following table describes the information provided on neighboring access points.
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Field Description
AP Detection for Radio
Detected Rogue AP List
Action Click Grant to move the AP from the Detected Rogue AP List to the Known AP List.
MAC Shows the MAC address of the neighboring AP. Radio The Radio eld indicates which radio detected the neighboring AP:
Beacon Int. Shows the Beacon interval being used by this AP.
Type Indicates the type of device:
SSID The Service Set Identier (SSID) for the AP.
Privacy Indicates whether there is any security on the neighboring device.
WPA Indicates whether WPA security is on or off for this AP. Band This indicates the IEEE 802.11 mode being used on this AP. (For example, IEEE 802.11a,
Channel Shows the Channel on which the AP is currently broadcasting.
Rate Shows the rate (in megabits per second) at which this AP is currently transmitting.
Signal Indicates the strength of the radio signal emitting from this AP. If you hover the mouse
Beacons Shows the total number of beacons received from this AP since it was rst discovered.
Last Beacon Shows the date and time of the last beacon received from this AP.
Rates Shows supported and basic (advertised) rate sets for the neighboring AP. Rates are shown
To allow the AP radios to perform neighbor AP detection and collect information about neighbor APs, click Enabled. To disable neighbor AP detection on the radios, click Disabled. If you change the AP detection mode, click Apply to save the new settings.
Note: The Detected Rouge AP and Known AP lists provide information. The DWL-x600AP
does not have any control over the APs on the list and cannot apply any security policies to
APs detected through the RF scan.
•) wlan0 (Radio One)
•) wlan1 (Radio Two)
Beacon frames are transmitted by an AP at regular intervals to announce the existence of the wireless network. The default behavior is to send a beacon frame once every 100 milliseconds (or 10 per second). The Beacon Interval is set on the Radio page.(See “Modifying Radio Settings” on page
40)
•) AP indicates the neighboring device is an AP that supports the IEEE 802.11 Wireless Networking Framework in Infrastructure Mode.
•) Ad hoc indicates a neighboring station running in Ad hoc Mode. Stations set to ad hoc mode communicate with each other directly, without the use of a traditional AP.
Ad-hoc mode is an IEEE 802.11 Wireless Networking Framework also referred to as
peer-to-peer mode or an Independent Basic Service Set (IBSS).
The SSID is an alphanumeric string of up to 32 characters that uniquely identies a wireless
local area network. It is also referred to as the Network Name. The SSID is set on the VAP page. (See “Conguring Load Balancing” on page 60)
•) Off indicates that the Security mode on the neighboring device is set to None (no security).
•) On indicates that the neighboring device has some security in place.
•) Security is congured on the AP from the VAP page.
IEEE 802.11b, IEEE 802.11g.)
The number shown indicates the mode according to the following map:
•) 2.4 indicates IEEE 802.11b, 802.11g, or 802.11n mode (or a combination of the modes)
•) 5 indicates IEEE 802.11a or 802.11n mode (or both modes)
The channel denes the portion of the radio spectrum that the radio uses for transmitting
and receiving. The channel is set in Radio Settings. (See “Modifying Radio Settings” on page 40)
The current rate will always be one of the rates shown in Supported Rates.
pointer over the bars, a number appears and shows the strength in decibels (dB).
in megabits per second (Mbps). All Supported Rates are listed, with Basic Rates shown in bold. Rate sets are congured on the Radio Settings page. (See “Modifying Radio Settings” on
page 40)
Section 3 - Viewing Access Point Status
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Field Description
Known AP List
Action An AP can appear in the Known AP List if it has been moved from the Detected Rogue AP
List by clicking the Grant button or if the MAC address of the AP appears in an AP list that has been imported. To move the AP from the Known AP List to the Detected Rogue AP List, click Delete.
Note: The Detected Rouge AP and Known AP lists provide information. The DWL-x600AP
does not have any control over the APs on the list and cannot apply any security policies to
APs detected through the RF scan.
MAC Shows the MAC address of the neighboring AP.
Type Indicates the type of device:
•) AP indicates the neighboring device is an AP that supports the IEEE 802.11 Wireless
Networking Framework in Infrastructure Mode.
•) Ad hoc indicates a neighboring station running in Ad hoc Mode. Stations set to ad hoc mode communicate with each other directly, without the use of a traditional AP.
Ad-hoc mode is an IEEE 802.11 Wireless Networking Framework also referred to as
peer-to-peer mode or an Independent Basic Service Set (IBSS).
SSID The Service Set Identier (SSID) for the AP.
The SSID is an alphanumeric string of up to 32 characters that uniquely identies a wireless
local area network. It is also referred to as the Network Name. The SSID is set on the VAP page. (See “Conguring Load Balancing” on page 60)
Privacy Indicates whether there is any security on the neighboring device.
•) Off indicates that the Security mode on the neighboring device is set to None (no
security).
•) On indicates that the neighboring device has some security in place.
•) Security is congured on the AP from the VAP page.
Band This indicates the IEEE 802.11 mode being used on this AP. (For example, IEEE 802.11a,
IEEE 802.11b, IEEE 802.11g.)
The number shown indicates the mode according to the following map:
•) 2.4 indicates IEEE 802.11b, 802.11g, or 802.11n mode (or a combination of the modes)
•) 5 indicates IEEE 802.11a or 802.11n mode (or both modes)
Channel Shows the Channel on which the AP is currently broadcasting.
The channel denes the portion of the radio spectrum that the radio uses for transmitting
and receiving. The channel is set in Radio Settings. (See “Modifying Radio Settings” on page 40)
Table 12 - Rogue AP Detection
Section 3 - Viewing Access Point Status
Saving and Importing the Known AP List
To save the Known AP list to a le, click Save. The list contains the MAC addresses of all AP that have been added to the Known AP List. By default, the lename is Rogue1.cfg. You can use a text editor or Web browser to open the le
and view its contents.
Use the Import feature to import a list of Known APs from a saved list. The list might be from another DWL-x600AP or created from a text le. If the MAC address of an AP appears in the Known AP List, it will not be detected as a rogue.
To import an AP List from a le, use the following steps:
1.) Choose whether to replace the existing Known AP list or add the entries in the imported le to the Known AP list.
•) Select the Replace option to import the list and replace the contents of the Known AP List.
•) Select the Merge option to import the list and add the APs in the imported le to the APs currently displayed in the Known AP List.
2.) Click Browse and choose the le to import.
•) The le you import must be a plain-text le with a .txt or .cfg extension. Entries in the le are MAC addresses
in hexadecimal format with each octet separated by colons, for example 00:11:22:33:44:55. Separate entries
with a single space. For the AP to accept the le, it must contain only MAC addresses.
3.) Click Import.
•) Once the import is complete, the screen refreshes and the MAC addresses of the APs in the imported le
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appear in the Known AP List.
Section 3 - Viewing Access Point Status
Viewing Managed AP DHCP Information
The UAP can learn about D-Link Unied Wireless Switches on the network through DHCP responses to its initial
DHCP request. The Managed AP DHCP page displays the DNS names or IP addresses of up to four D-Link Unied Wireless Switches that the AP learned about from a DHCP server on your network.
Figure 11 - Managed AP DHCP Information
For information about how to congure a DHCP server to respond to AP DHCP requests with the switch IP address
information, see the User Manual for the switch.
Viewing TSPEC Status and Statistics Information
The TSPEC Status and Statistics page provides:
•) Summary information about TSPEC sessions by radio
•) Summary information about TSPEC sessions by VAP
•) Real-time transmit and receive statistics for the TSPEC VAPs on all radio interfaces.
All of the transmit and receive statistics shown are totals since the AP was last started. If you reboot the AP, these
gures indicate transmit and receive totals since the reboot.
To view TSPEC status and statistics, click the TSPEC Status and Statistics tab.
Figure 12 - Viewing TSPEC Status and Statistics
The following table describes the information provided on TSPEC Status and Statistics page.
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Field Description
AP and VAP Status
Interface Indicates the name of the Radio or VAP interface.
Access Category Indicates Current Access Category associated with this Trafc Stream (voice or video).
Status Indicates whether the TSPEC session is enabled (up) or not (down) for the corresponding
Access Category.
Note: This is a conguration status (does not necessarily represent the current session
activity).
Active TS Indicates the number of currently active TSPEC Trafc Streams for this radio and Access
Category.
TS Clients Indicates the number of Trafc Stream clients associated with this radio and Access
Category.
Medium Time Admitted
Medium Time Unallocated
Transmit and Receive Statistics
Total Packets Indicates the total number of TS packets sent (in Transmit table) or received (in Received
Total Bytes Indicates the total number of TS bytes sent (in Transmit table) or received (in Received
Total Voice Packets Indicates the total number of TS voice packets sent (in Transmit table) or received (in
Total Voice Bytes Indicates the total TS voice bytes sent (in Transmit table) or received (in Received table) by
Total Video Packets Indicates the total number of TS video packets sent (in Transmit table) or received (in
Total Video Bytes Indicates the total TS video bytes sent (in Transmit table) or received (in Received table) by
Time (in 32 microsecond per second units) allocated for this Access Category over the transmission medium to carry data. This value should be less than or equal to the maximum bandwidth allowed over the medium for this TS.
Time (in 32 microsecond per second units) of unused bandwidth for this Access Category.
table) by this Radio for the specied Access Category.
table) by this Radio for the specied Access Category.
Received table) by this AP for this VAP.
this AP for this VAP.
Received table) by this AP for this VAP.
this AP for this VAP.
Table 13 - TSPEC Status and Statistics
Section 3 - Viewing Access Point Status
Viewing TSPEC AP Statistics Information
The View TSPEC AP Statistics page provides information on the voice and video Trafc Streams accepted and rejected by the AP.
To view TSPEC AP statistics, click the TSPEC AP Statistics tab.
Figure 13 - View TSPEC Status and Statistics
The following table describes the information provided on TSPEC AP Statistics page.
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Field Description
TSPEC Statistics Summary for Voice
ACM
TSPEC Statistics Summary for Video
ACM
Indicates the total number of accepted and the total number of rejected voice Trafc
Streams.
Indicates the total number of accepted and the total number of rejected video Trafc
Streams.
Table 14 - TSPEC AP Statistics
Section 3 - Viewing Access Point Status
Viewing Radio Statistics Information
The Radio Statistics page provides detailed information about the packets and bytes transmitted and received on the radio interface of this access point.
Figure 14 - View Radio Statistics
The following table describes details about the Radio Statistics information.
Field Description
Radio Choose either radio 1 or radio 2 to view statistics for the selected radio
WLAN Packets Received
WLAN Bytes Received
WLAN Packets
Transmitted
WLAN Bytes
Transmitted
WLAN Packets Receive Dropped
WLAN Bytes Receive Dropped
WLAN Packets
Transmit Dropped
WLAN Bytes
Transmit Dropped
Fragments
Received
Fragments Transmitted
Multicast Frames
Received
Total packets received by the AP on this radio interface.
Total bytes received by the AP on this radio interface.
Total packets transmitted by the AP on this radio interface.
Total bytes transmitted by the AP on this radio interface.
Number of packets received by the AP on this radio interface that were dropped.
Number of bytes received by the AP on this radio interface that were dropped.
Number of packets transmitted by the AP on this radio interface that were dropped.
Number of bytes transmitted by the AP on this radio interface that were dropped.
Count of successfully received MPDU frames of type data or management.
Number of transmitted MPDU with an individual address or an MPDU with a multicast address of type Data or Management.
Count of MSDU frames received with the multicast bit set in the destination MAC address.
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Field Description
Multicast Frames Transmitted
Duplicate Frame Count
Failed Transmit Count
Transmit Retry
Count
Multiple Retry
Count
RTS Success Count Count of CTS frames received in response to an RTS frame.
RTS Failure Count Count of CTS frames not received in response to an RTS frame.
ACK Failure Count Count of ACK frames not received when expected. FCS Error Count Count of FCS errors detected in a received MPDU frame.
Frames Transmitted Count of each successfully transmitted MSDU.
WEP Undecryptable
Count
Count of successfully transmitted MSDU frames where the multicast bit is set in the destination MAC address.
Number of times a frame is received and the Sequence Control eld indicates is a duplicate.
Number of times an MSDU is not transmitted successfully due to transmit attempts exceeding either the short retry limit or the long retry limit.
Number of times an MSDU is successfully transmitted after one or more retries.
Number of times an MSDU is successfully transmitted after more than one retry.
Count of encrypted frames received and the key conguration of the transmitter indicates
that the frame should not have been encrypted or that frame was discarded due to the receiving station not implementing the privacy option.
Table 15 - Radio Statistics Information
Section 3 - Viewing Access Point Status
Viewing Email Alert Operational Status
The Email Alert Operational Status page provides information about the email alerts sent based on the syslog
messages generated in the AP.
To view the Email Alert Operational Status, click the Status > Email Alert Status tab.
To congure the email alerts, see “Conguring Email Alert” on page 72.
Figure 15 - Email Alert Operational Status
The following table describes details about the Email Alert Operational Status.
Field Description
Email Alert Status The Email Alert operational status The status is either Up or Down. The default is Down.
Number of Email
Sent
Number of Email
Failed
Time Since Last
Email Sent
The total number of email sent so far. The range is an unsigned integer of 32 bits. The default is 0.
The total number of email failures so far. The range is an unsigned integer of 32 bits. The default is 0.
The time since the last email was sent. Time format is used. The default is 00 days 00 hours 00 minutes 00 seconds.
Table 16 - Email Alert Status
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Section 4 - Managing the Access Point
Section 4 - Managing the Access Point
This section describes how to manage the UAP and contains the following subsections:
•) “Ethernet Settings” on page 35
•) “Wireless Settings” on page 37
•) “Modifying Radio Settings” on page 40
•) “Conguring Radio and VAP Scheduler” on page 44
•) “Scheduler Association Settings” on page 46
•) “Virtual Access Point Settings” on page 47
•) “Conguring the Wireless Distribution System (WDS)” on page 56
•) “Controlling Access by MAC Authentication” on page 59
•) “Conguring Load Balancing” on page 60
•) “” on page 61
•) “Conguring 802.1X Authentication” on page 63
•) “Creating a Management Access Control List (ACL)” on page 64
The conguration pages for the features in this section are located under the Manage heading on the Administration
Web UI.
Ethernet Settings
The default wired interface settings, which include DHCP and VLAN information, might not work for all networks.
By default, the DHCP client on the UAP automatically broadcasts requests for network information. If you want to
use a static IP address, you must disable the DHCP client and manually congure the IP address and other network
information.
The management VLAN is VLAN 1 by default. This VLAN is also the default untagged VLAN. If you already have
a management VLAN congured on your network with a different VLAN ID, you must change the VLAN ID of the
management VLAN on the AP.
To congure the LAN settings, click the Ethernet Settings tab.
Figure 16 - Modify Ethernet (Wired) settings
The following table describes the elds to view or congure on the Ethernet Settings page.
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Section 4 - Managing the Access Point
Field Description
Hostname Enter a hostname for the AP. The hostname appears in the CLI prompt.
•) The hostname has the following requirements:
•) The length must be between 1 – 63 characters.
•) Upper and lower case characters, numbers, and hyphens are accepted.
•) The rst character must be a letter (a – z or A – Z), and the last character cannot be a
hyphen.
MAC Address Shows the MAC address for the LAN interface for the Ethernet port on this AP. This is a
read-only eld that you cannot change.
Management VLAN IDThe management VLAN is the VLAN associated with the IP address you use to access the
AP. The default management VLAN ID is 1. Provide a number between 1 and 4094 for the management VLAN ID.
Untagged VLAN If you disable the untagged VLAN, all trafc is tagged with a VLAN ID.
By default all trafc on the UAP uses VLAN 1, which is the default untagged VLAN. This means that all trafc is untagged until you disable the untagged VLAN, change the untagged trafc VLAN ID, or change the VLAN ID for a VAP or client using RADIUS.
Untagged VLAN ID Provide a number between 1 and 4094 for the untagged VLAN ID. Trafc on the VLAN that
you specify in this eld will not be tagged with a VLAN ID.
Connection Type If you select DHCP, the UAP acquires its IP address, subnet mask, DNS, and gateway
information from a DHCP server. If you select Static IP, you must enter information in the Static IP Address, Subnet Mask,
and Default Gateway elds.
Static IP Address Enter the static IP address in the text boxes. This eld is disabled if you use DHCP as the
connection type.
Subnet Mask Enter the Subnet Mask in the text boxes. Default Gateway Enter the Default Gateway in the text boxes.
DNS Nameservers Select the mode for the DNS.
In Dynamic mode, the IP addresses for the DNS servers are assigned automatically via
DHCP. This option is only available if you specied DHCP for the Connection Type.
In Manual mode, you must assign static IP addresses to resolve domain names.
IPv6 Admin Mode Enable or disable IPv6 management access to the AP
IPv6 Auto Cong
Admin Mode
Enable or disable IPv6 auto address conguration on the AP. When IPv6 Auto Cong Mode is enabled, automatic IPv6 address conguration and gateway conguration is allowed by processing the Router Advertisements received on the LAN port. The AP can have multiple auto congured IPv6 addresses.
Static IPv6 Address Enter a static IPv6 address. The AP can have a static IPv6 address even if addresses have
already been congured automatically.
Static IPv6 Address
Enter the static IPv6 prex length, which is an integer in the range of 0 – 128.
Prex Length
IPv6 Autocongured
Global Addresses
IPv6 Link Local
Address
If the AP has been assigned one or more IPv6 addresses automatically, the addresses are listed.
Shows the IPv6 Link Local address, which is the IPv6 address used by the local physical
link. The link local address is not congurable and is assigned by using the IPv6 Neighbor
Discovery process.
Default IPv6
Enter the default IPv6 gateway.
Gateway
Table 17 - Ethernet Settings
March 2012
Note: After you congure the wired settings, you must click Apply to apply the changes and to save the settings. Changing some settings might cause the AP to stop and restart system processes. If this happens, wireless clients will temporarily lose connectivity. We recommend that
you change AP settings when WLAN trafc is low.
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Section 4 - Managing the Access Point
Wireless Settings
Wireless settings describe aspects of the local area network (LAN) related specically to the radio device in the
access point (802.11 Mode and Channel) and to the network interface to the access point (MAC address for access point and Wireless Network name, also known as SSID).
To congure the wireless interface, click the Manage > Wireless Settings tab.
Figure 17 - Modify Wireless Settings
The following table describes the elds and conguration options available on the Wireless Settings page.
Field Description
TSPEC Violation Interval
Radio Interface Specify whether you want the radio interface on or off.
MAC Address Indicates the Media Access Control (MAC) addresses for the interface. Dual-radio APs have
Specify the time interval (in seconds) for the AP to report (through the system log and SNMP traps) associated clients that do not adhere to mandatory admission control procedures.
a unique MAC address for each radio. A MAC address is a permanent, unique hardware address for any device that represents an interface to the network. The MAC address is assigned by the manufacturer. You cannot change the MAC address. It is provided here for informational purposes as a unique
identier for an interface.
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Field Description
Mode The Mode denes the Physical Layer (PHY) standard the radio uses.
Note: The modes available depend on the country code setting and the radio selected. Select one of the following modes for radio 1:
•) IEEE 802.11a is a PHY standard that species operating in the 5 GHz U-NII band using orthogonal frequency division multiplexing (OFDM). It supports data rates
ranging from 6 to 54 Mbps.
•) IEEE 802.11a/n operates in the 5 GHz ISM band and includes support for both
802.11a and 802.11n devices. IEEE 802.11n is an extension of the 802.11 standard that includes multiple-input multiple-output (MIMO) technology. IEEE 802.11n
supports data ranges of up to 248 Mbps and nearly twice the indoor range of 802.11 b, 802.11g, and 802.11a.
•) 5 GHz IEEE 802.11n is the recommended mode for networks with 802.11n devices
that operate in the 5 GHz frequency that do not need to support 802.11a devices. IEEE 802.11n can achieve a higher throughput when it does not need to be
compatible with legacy devices (802.11a).
Select one of the following modes for radio 2:
•) IEEE 802.11b/g operates in the 2.4 GHz ISM band. IEEE 802.11b is an enhancement
of the initial 802.11 PHY to include 5.5 Mbps and 11 Mbps data rates. It uses direct
sequence spread spectrum (DSSS) or frequency hopping spread spectrum (FHSS) as well as complementary code keying (CCK) to provide the higher data rates. It supports data rates ranging from 1 to 11 Mbps. IEEE 802.11g is a higher speed
extension (up to 54 Mbps) to the 802.11b PHY. It uses orthogonal frequency division
multiplexing (OFDM). It supports data rates ranging from 1 to 54 Mbps.
•) IEEE 802.11b/g/n operates in the 2.4 GHz ISM band and includes support for 802.11b,
802.11g, and 802.11n devices.
•) 2.4 GHz IEEE 802.11n is the recommended mode for networks with 802.11n devices
that operate in the 2.4 GHz frequency that do not need to support 802.11b/g devices. IEEE 802.11n can achieve a higher throughput when it does not need to be
compatible with legacy devices (802.11b/g).
Channel Select the Channel.
The range of available channels is determined by the mode of the radio interface and the country code setting. If you select Auto for the channel setting, the AP scans available
channels and selects a channel where no trafc is detected. The Channel denes the portion of the radio spectrum the radio uses for transmitting and receiving. Each mode offers a number of channels, depending on how the spectrum is licensed by national and transnational authorities such as the Federal Communications Commission (FCC) or the International Telecommunication Union (ITU-R).
When automatic channel assignment is enabled on the Channel Management page for Clustering, the channel policy for the radio is automatically set to static mode, and the Auto
option is not available for the Channel eld. This allows the automatic channel feature to set
the channels for the radios in the cluster.
Station Isolation To enable Station Isolation, select the check box directly beside it.
When Station Isolation is disabled, wireless clients can communicate with one another
normally by sending trafc through the AP.
When Station Isolation is enabled, the AP blocks communication between wireless clients
on the same radio and VAP. The AP still allows data trafc between its wireless clients and
wired devices on the network, across a WDS link, and with other wireless clients associated with a different VAP, but not among wireless clients associated with the same VAP.
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Field Description
AeroScout™ Engine
Protocol Support
AeroScout Engine support provides location-based services for wireless networks. Specify
whether to enable support for the AeroScout protocol. Options are Enabled or Disabled. The default is Disabled. When enabled, Aeroscout
devices are recognized and data is sent to an Aeroscout Engine (AE) for analysis. The AE
determines the geographical location of 802.11 capable devices, such as STAs, APs, and
AeroScout’s line of 802.11 enabled RFID devices, or tags. The AE communicates with APs that support the AE protocol in order to collect information about the RF devices detected by the APs. Using the AE protocol, D-Link supports direct communication between AE and the APs. When operating in managed mode, the AE is congured with the IP address of
the managed access points from which it collects information. The Wireless Switch cannot
communicate with the AE.
For more information about the AeroScout protocol, see “Enabling AeroScout™ Engine
Support” on page 39.
Note: Only AeroScout tag hardware of types T2 and T3 are explicitly supported. Other tag models are also supported only if their implementation of the AeroScout protocol conforms to the AeroScout Engine - Access Point Interface Specication, version 2.1. Note: AeroScout tags operate only in 802.11 b/g mode. Therefore, network administrators
who use the AeroScout tags must congure at least one radio on APs that are expected to detect tags in either 802.11b/g or 802.11b/g/n mode. The radios congured in 2.4 GHz IEEE
802.11 mode or any of the 5GHz modes cannot detect AeroScout tags. Note: The AE protocol allows access points to mark detected APs as rogue devices. The
D-Link APs do not support this feature and never report detected APs as rogues.
Section 4 - Managing the Access Point
Table 18 - Wireless Settings
Note: After you congure the wireless settings, you must click Apply to apply the changes and to save the settings. Changing some settings might cause the AP to stop and restart system processes. If this happens, wireless clients will temporarily lose connectivity. We recommend that
you change AP settings when WLAN trafc is low.
Using the 802.11h Wireless Mode
For 802.11a radios, if the regulatory domain requires radar detection on the channel, the Dynamic Frequency Selection (DFS) and Transmit Power Control (TPC) features of 802.11h are automatically activated.
There are a number of key points about the IEEE 802.11h standard:
•) 802.11h only works for the 802.11a band. It is not required for 802.11b or 802.11g.
•) If you are operating in an 802.11h enabled domain, the AP attempts to use the channel you assign. If the channel
has been blocked by a previous radar detection, or if the AP detects a radar on the channel, then the AP automatically selects a different channel.
•) When 802.11h is enabled, the AP will not be operational in the 5GHz band for at least 60 seconds due to radar
scanning.
•) Setting up WDS links may be difcult when 802.11h is operational. This is because the operating channels of the
two APs on the WDS link may keep changing depending on channel usage and radar interference. WDS will
only work if both the APs operate on the same channel. For more information on WDS, see “Conguring Load
Balancing” on page 60.
Enabling AeroScout™ Engine Support
The AeroScout Engine (AE) is a software platform produced by AeroScout Inc. for location-based services. The AE can determine the physical location of 802.11 capable AeroScout devices. The AE communicates with APs that have the AE protocol enabled in order to collect information about the RF devices detected by the APs.
The DWS-4000 Series switch supports only direct communication between the AE and the APs. When operating in managed mode, the AE is congured with the IP address of the managed access points from which it collects
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information. The DWS-4000 Series switch does not communicate with the AE.
AeroScout tags operate only in 802.11b/g mode. Therefore, network administrators who use the AeroScout tags must
congure at least one radio on APs that are expected to detect tags in either 802.11b/g or 802.11b/g/n mode. The radios congured in 2.4 GHz IEEE 802.11n mode cannot detect AeroScout tags.
Note: The following notes apply to AeroScout product and protocol support:
•) D-Link does not sell AeroScout products. Contact AeroScout for AeroScout hardware,
software or deployment information.
•) The AE protocol does not support any authentication or encryption between the AE server
and the access point.
•) The AE protocol requires radios to operate in promiscuous mode. This means that the AP
receives and processes all packets detected by the radios, as opposed to processing only packets destined to the APs BSSID. This can affect AP throughput.
Section 4 - Managing the Access Point
Modifying Radio Settings
Radio settings directly control the behavior of the radio devices in the AP and its interaction with the physical medium; that is, how and what type of electromagnetic waves the AP emits.
To specify radio settings, click the Radio tab in the Manage section.
Different settings display depending on the mode you select. All settings are described in the table below.
Figure 18 - Modify Radio Settings
The following table describes the elds and conguration options for the Radio Settings page.
Field Description
Radio Select Radio 1or Radio 2 to specify which radio to congure. The rest of the settings on this
page apply to the radio you select in this eld. Be sure to congure settings for both radios. Radio 1 operates in the 5 GHz band (802.11a/n), and Radio 2 operates in the 2.4 GHz band
(802.11b/g/n).
Status (On/Off) Specify whether you want the radio on or off by clicking On or Off.
If you turn off a radio, the AP sends disassociation frames to all the wireless clients it is currently supporting so that the radio can be gracefully shutdown and the clients can start the association process with other available APs.
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Field Description
Mode The Mode denes the Physical Layer (PHY) standard the radio uses.
Note: The modes available depend on the country code setting and the radio selected. Select one of the following modes for radio 1:
•) IEEE 802.11a is a PHY standard that species operating in the 5 GHz U-NII band using orthogonal frequency division multiplexing (OFDM). It supports data rates
ranging from 6 to 54 Mbps.
•) IEEE 802.11a/n operates in the 5 GHz ISM band and includes support for both
802.11a and 802.11n devices. IEEE 802.11n is an extension of the 802.11 standard that includes multiple-input multiple-output (MIMO) technology. IEEE 802.11n
supports data ranges of up to 248 Mbps and nearly twice the indoor range of 802.11 b, 802.11g, and 802.11a.
•) 5 GHz IEEE 802.11n is the recommended mode for networks with 802.11n devices
that operate in the 5 GHz frequency that do not need to support 802.11a devices. IEEE 802.11n can achieve a higher throughput when it does not need to be
compatible with legacy devices (802.11a).
Select one of the following modes for radio 2:
•) IEEE 802.11b/g operates in the 2.4 GHz ISM band. IEEE 802.11b is an enhancement
of the initial 802.11 PHY to include 5.5 Mbps and 11 Mbps data rates. It uses direct
sequence spread spectrum (DSSS) or frequency hopping spread spectrum (FHSS) as well as complementary code keying (CCK) to provide the higher data rates. It supports data rates ranging from 1 to 11 Mbps. IEEE 802.11g is a higher speed
extension (up to 54 Mbps) to the 802.11b PHY. It uses orthogonal frequency division
multiplexing (OFDM). It supports data rates ranging from 1 to 54 Mbps.
•) IEEE 802.11b/g/n operates in the 2.4 GHz ISM band and includes support for 802.11b,
802.11g, and 802.11n devices.
•) 2.4 GHz IEEE 802.11n is the recommended mode for networks with 802.11n devices
that operate in the 2.4 GHz frequency that do not need to support 802.11b/g devices. IEEE 802.11n can achieve a higher throughput when it does not need to be
compatible with legacy devices (802.11b/g).
Channel Select the Channel.
The range of available channels is determined by the mode of the radio interface and the country code setting. If you select Auto for the channel setting, the AP scans available
channels and selects a channel where no trafc is detected. The channel denes the portion of the radio spectrum the radio uses for transmitting and receiving. Each mode offers a number of channels, depending on how the spectrum is licensed by national and transnational authorities such as the Federal Communications Commission (FCC) or the International Telecommunication Union (ITU-R).
When automatic channel assignment is enabled on the Channel Management page for Clustering, the channel policy for the radio is automatically set to static mode, and the Auto
option is not available for the Channel eld. This allows the automatic channel feature to set
the channels for the radios in the cluster.
Channel Bandwidth
(802.11n modes only)
Primary Channel (802.11n modes only)
The 802.11n specication allows a 40 MHz wide channel in addition to the legacy 20 MHz
channel available with other modes. The 40 MHz channel enables higher data rates but
leaves fewer channels available for use by other 2.4 GHz and 5 GHz devices. Set the eld to 20 MHz to restrict the use of the channel bandwidth to a 20 MHz channel.
This setting can be changed only when the channel bandwidth is set to 40 MHz. A 40 MHz channel can be considered to consist of two 20 MHz channels that are contiguous in the frequency domain. These two 20 MHz channels are often referred to as the Primary and Secondary channels. The Primary Channel is used for 802.11n clients that support only a 20 MHz channel bandwidth and for legacy clients. Select one of the following options:
•) Lower — Set the Primary Channel as the lower 20 MHz channel in the 40 MHz band.
•) Upper — Set the Primary Channel as the upper 20 MHz channel in the 40 MHz band.
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Field Description
Short Guard Interval
Supported
STBC Mode This eld is available only if the selected radio mode includes 802.11n.
Protection The protection feature contains rules to guarantee that 802.11n transmissions do not cause
Beacon Interval Beacon frames are transmitted by an AP at regular intervals to announce the existence
DTIM Period Specify a DTIM period from 1 to 255 beacons.
Fragmentation Threshold
This eld is available only if the selected radio mode includes 802.11n. The guard interval is the dead time, in nanoseconds, between OFDM symbols. The guard
interval prevents Inter-Symbol and Inter-Carrier Interference (ISI, ICI). The 802.11n mode
allows for a reduction in this guard interval from the a and g denition of 800 nanoseconds to 400 nanoseconds. Reducing the guard interval can yield a 10% improvement in data
throughput. Select one of the following options:
•) Yes — The AP transmits data using a 400ns guard Interval when communicating with clients that also support the short guard interval.
•) No — The AP transmits data using an 800ns guard interval.
Space Time Block Coding (STBC) is an 802.11n technique intended to improve the reliability of data transmissions. The data stream is transmitted on multiple antennas so the receiving system has a better chance of detecting at least one of the data streams. Select one of the following options:
•) On — The AP transmits the same data stream on multiple antennas at the same time.
•) Off — The AP does not transmits the same data on multiple antennas.
interference with legacy stations or APs. By default, these protection mechanisms are enabled (Auto). With protection enabled, protection mechanisms will be invoked if legacy devices are within range of the AP. This causes more overhead on every transmission, which will impact performance. However, there is no impact on performance if there are no legacy devices within range of the AP. You can disable (Off) these protection mechanisms; however, when 802.11n protection is off, legacy clients or APs within range can be affected by 802.11n transmissions. The 802.11 protection feature is also available when the mode is 802.11b/g. When protection is enabled in this mode, it protects 802.11b clients and APs from 802.11g transmissions. Note: This setting does not affect the ability of the client to associate with the AP.
of the wireless network. The default behavior is to send a beacon frame once every 100 milliseconds (or 10 per second).
Enter a value from 20 to 2000 milliseconds.
The Delivery Trafc Information Map (DTIM) message is an element included in some
Beacon frames. It indicates which client stations, currently sleeping in low-power mode, have data buffered on the AP awaiting pick-up. The DTIM period you specify indicates how often the clients served by this AP should check for buffered data still on the AP awaiting pickup.
The measurement is in beacons. For example, if you set this eld to 1, clients will check for buffered data on the AP at every beacon. If you set this eld to 10, clients will check on
every 10th beacon.
Specify a number between 256 and 2,346 to set the frame size threshold in bytes. The fragmentation threshold is a way of limiting the size of packets (frames) transmitted over the network. If a packet exceeds the fragmentation threshold you set, the fragmentation function is activated and the packet is sent as multiple 802.11 frames. If the packet being transmitted is equal to or less than the threshold, fragmentation is not used. Setting the threshold to the largest value (2,346 bytes) effectively disables fragmentation.
Fragmentation plays no role when Aggregation is enabled. Fragmentation involves more overhead both because of the extra work of dividing up and reassembling of frames it requires, and because it increases message trafc on the network.
However, fragmentation can help improve network performance and reliability if properly
congured.
Sending smaller frames (by using lower fragmentation threshold) might help with some interference problems; for example, with microwave ovens. By default, fragmentation is off. We recommend not using fragmentation unless you suspect radio interference. The additional headers applied to each fragment increase the overhead on the network and can greatly reduce throughput.
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Field Description
RTS Threshold Specify a Request to Send (RTS) Threshold value between 0 and 2347.
The RTS threshold indicates the number of octets in an MPDU, below which an RTS/CTS handshake is not performed.
Changing the RTS threshold can help control trafc ow through the AP, especially one
with a lot of clients. If you specify a low threshold value, RTS packets will be sent more frequently. This will consume more bandwidth and reduce the throughput of the packet. On the other hand, sending more RTS packets can help the network recover from interference or collisions which might occur on a busy network, or on a network experiencing electromagnetic interference.
Maximum Stations Specify the maximum number of stations allowed to access this AP at any one time.
You can enter a value between 0 and 200.
Transmit Power Enter a percentage value for the transmit power level for this AP.
The default value, which is 100%, can be more cost-efcient than a lower percentage since it gives the AP a maximum broadcast range and reduces the number of APs needed. To increase capacity of the network, place APs closer together and reduce the value of the transmit power. This helps reduce overlap and interference among APs. A lower transmit power setting can also keep your network more secure because weaker wireless signals are less likely to propagate outside of the physical location of your network.
Fixed Multicast Rate Select the multicast trafc transmission rate you want the AP to support.
Legacy Rate Sets Check the transmission rate sets you want the AP to support and the basic rate sets you
want the AP to advertise:
•) Rates are expressed in megabits per second.
•) Supported Rate Sets indicate rates that the AP supports. You can check multiple rates
(click a check box to select or de-select a rate). The AP will automatically choose the
most efcient rate based on factors like error rates and distance of client stations from
the AP.
•) Basic Rate Sets indicate rates that the AP will advertise to the network for the purposes of setting up communication with other APs and client stations on the
network. It is generally more efcient to have an AP broadcast a subset of its
supported rate sets.
MCS (Data Rate) Settings (802.11n modes only)
Broadcast/Multicast Rate Limiting
TSPEC Mode Regulates the overall TSPEC mode on the AP. The options are:
TSPEC Voice ACM
Mode
This eld shows the Modulation and Coding Scheme (MCS) index values supported by the radio. Each index can be enabled and disabled independently.
Enabling multicast and broadcast rate limiting can improve overall network performance by
limiting the number of packets transmitted across the network. By default the Multicast/Broadcast Rate Limiting option is disabled. Until you enable
Multicast/Broadcast Rate Limiting, the following elds will be disabled:
•) Rate Limit - Enter the rate limit you want to set for multicast and broadcast trafc. The limit should be greater than 1, but less than 50 packets per second. Any trafc that
falls below this rate limit will always conform and be transmitted to the appropriate destination. The default and maximum rate limit setting is 50 packets per second.
•) Rate Limit Burst - Setting a rate limit burst determines how much trafc bursts can be before all trafc exceeds the rate limit. This burst limit allows intermittent bursts of trafc on a network above the set rate limit. The default and maximum rate limit burst
setting is 75 packets per second.
•) On — The AP handles TSPEC requests according to the TSPEC settings you congure on the Radio page. Use this setting if the AP handles trafc from QoS­capable devices, such as a Wi-Fi CERTIFIED phone.
•) Off — The AP ignores TSPEC requests from client stations. Use this setting if you do not want to use TSPEC to give QoS-capable devices priority for time-sensitive trafc.
Regulates mandatory admission control (ACM) for the voice access category. The options are:
•) On — A station is required to send a TSPEC request for bandwidth to the AP before sending or receiving a voice trafc stream. The AP responds with the result of the request, which includes the allotted medium time if the TSPEC was admitted.
•) Off — A station can send and receive voice priority trafc without requiring an admitted TSPEC; the AP ignores voice TSPEC requests from client stations.
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Field Description
TSPEC Voice ACM
Limit
TSPEC Video ACM
Mode
TSPEC Video ACM
Limit
TSPEC AP Inactivity
Timeout
TSPEC Station Inactivity Timeout
TSPEC Legacy WMM Queue Map
Mode
Specify an upper limit on the amount of trafc the AP attempts to transmit on the wireless
medium using a voice AC to gain access.
Regulates mandatory admission control for the video access category. The options are:
•) On — A station is required to send a TSPEC request for bandwidth to the AP before sending or receiving a video trafc stream. The AP responds with the result of the request, which includes the allotted medium time if the TSPEC was admitted.
•) Off — A station can send and receive video priority trafc without requiring an admitted TSPEC; the AP ignores video TSPEC requests from client stations.
Specify an upper limit on the amount of trafc the AP attempts to transmit on the wireless
medium using a video AC to gain access.
Specify the amount of time for an AP to detect an downlink TS as idle before deleting it.
Specify the amount of time for an AP to detect an uplink TS as idle before deleting it.
Select Enable to allow intermixing of legacy trafc on queues operating as ACM.
Section 4 - Managing the Access Point
Table 19 - Radio Settings
Use the Radio page to congure both Radio One and Radio Two. The settings on the page apply only to the radio that you choose from the Radio drop-down list. After you congure settings for one of the radios, click Apply and then select and congure the other radio. Be sure to click Apply to apply the second set of conguration settings for the
other radio.
Conguring Radio and VAP Scheduler
The Radio and VAP scheduler is a standalone DWL-x600AP feature. To congure the Radio and VAP scheduler, select the Scheduler tab in the Manage section. The Radio and VAP Scheduler allows you to congure a rule with a specic time interval for VAPs or radios to be operational, thereby automating the enabling or disabling of the VAPs
and Radios.
One of the ways you can use this feature is to schedule radios to operate only during the ofce working hours in order
to achieve security and reduce power consumption. You can also use the Scheduler to allow access to VAPs for
wireless clients only during specic times of day.
Each rule species the start time, end time and day (or days) of the week the radio or VAP can be operational. The
rules are periodic in nature and are repeated every week.
A valid rule must contain all of the following parameters:
•) Days of the Week.
•) Start Time (hour and minutes).
•) End Time (hour and minutes).
Only valid rules are added to the prole. Up to 16 rules are grouped together to form a scheduling prole. Any two periodic rules time entries belonging to the same prole must not overlap. The time granularity for the schedules is one minute. The DWL-x600AP supports up to 16 proles.
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Figure 19 - Scheduler Conguration
Section 4 - Managing the Access Point
Field Description
Global Scheduler
A global switch to enable or disable the scheduler feature. The default is Disable.
Mode
Scheduler Operational Status
Status The operational status of the Scheduler. The range is Up or Down. The default is Down.
Reason Provides additional information about the status. The reason can be one or more of the
following:
•) IsActive – Operational status is up.
•) CongDown – Operational status is down because global conguration is disabled.
•) TimeNotSet – Operational status is down because the AP time has not been set,
either manually or by specifying an NTP server to use.
•) ManagedMode– Operational status is down because the AP is in managed mode.
Scheduler Prole The Scheduler prole denes the list of proles names that can be associated to the VAP or
Radio conguration. Rules are associated with a named scheduler prole. You can dene up to 16 scheduler prole names. By default, no proles are created. The prole name can be up to 32 alphanumeric characters. Click Add to add the prole
name.
Rule Conguration Each scheduler prole may have up to 16 periodic rules. The list of parameters for each
periodic rule are described below.
Select Prole Select the prole name from the menu.
Set Schedule The day of the week. Range is: Daily, Weekday (Monday to Friday), Weekend (Saturday
and Sunday), Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday. The default is Daily.
Start Time The time when the radio or VAP will be operationally enabled. The time is in HH:MM 24-hour
format. The range is <00-24>:<00-59>. The default is 00:00.
End Time The time when the radio or VAP will be operationally disabled. The time is in HH:MM 24-
hour format. The range is <00-24>:<00-59>. The default is 00:00.
Table 20 - Scheduler Conguration
To change an existing rule, select the rule, update the values in the Rule Conguration area, and click Modify Rule.
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Section 4 - Managing the Access Point
Figure 20 - Scheduler Conguration (Modify Rule)
Click Apply to save the new conguration settings.
Note: After making any modications, you must click Apply to apply the changes and to save the
settings.
Scheduler Association Settings
For a Scheduler prole to take effect, you must associate it with at least one radio or VAP interface. To associate the Scheduler proles, select the Scheduler Association tab in the Manage section. By default, there are no Scheduler proles created, so no prole is associated to any radio or VAP. The Scheduler prole needs to be explicitly associated to a radio or VAP conguration. Only one Scheduler prole can be associated to any radio or VAP conguration; however, a single prole can be associated to multiple radios or VAPs. If the Scheduler prole associated with a VAP or radio is deleted, then the associated prole to the VAP or radio is removed implicitly. If the radio is operationally
disabled, then all the VAPs associated to that radio are also operationally disabled irrespective of the VAP
conguration.
March 2012
Figure 21 - Scheduler Association Settings
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Field Description
Radio Scheduler Prole Operational Status
1 or 2 From the menu, select the Scheduler prole to associate with Radio 1 or Radio 2.
Scheduler Prole From the menu, select the Scheduler prole to associate with the Radio.
Status The operational status of the Scheduler. The range is Up or Down.
VAP Scheduler Prole Operational Status
Radio From the menu, select Radio 1 or Radio 2 to associate the VAP Scheduler Prole. 0-15 From the menu, select the Scheduler prole to associate with the respective VAP.
Status The operational status of the Scheduler. The range is Up or Down.
Table 21 - Scheduler Association Settings
Note: After you associate a Scheduler prole with a Radio interface or a VAP interface, you must
click Apply to apply the changes and to save the settings.
Section 4 - Managing the Access Point
Virtual Access Point Settings
To change VAP 0 or to enable and congure additional VAPs, select the VAP tab in the Manage section.
VAPs segment the wireless LAN into multiple broadcast domains that are the wireless equivalent of Ethernet VLANs. VAPs simulate multiple APs in one physical AP. Each radio supports up to 16 VAPs.
For each VAP, you can customize the security mode to control wireless client access. Each VAP can also have
a unique SSID. Multiple SSIDs make a single AP look like two or more APs to other systems on the network.
By conguring VAPs, you can maintain better control over broadcast and multicast trafc, which affects network
performance.
You can congure each VAP to use a different VLAN, or you can congure multiple VAPs to use the same VLAN,
whether the VLAN is on the same radio or on a different radio. VAP0, which is always enabled on both radios, is assigned to the default VLAN 1.
The AP adds VLAN ID tags to wireless client trafc based on the VLAN ID you congure on the VAP page or by using the RADIUS server assignment. If you use an external RADIUS server, you can congure multiple VLANs on each
VAP. The external RADIUS server assigns wireless clients to the VLAN when the clients associate and authenticate.
You can congure up to four global IPv4 or IPv6 RADIUS servers. One of the servers always acts as a primary while
the others act as backup servers. The network type (IPv4 or IPv6) and accounting mode are common across all
congured RADIUS servers. You can congure each VAP to use the global RADIUS server settings, which is the default, or you can congure a per-VAP RADIUS server set. You can also congure separate RADIUS server settings for each VAP. For example, you can congure one VAP to use an IPv6 RADIUS server while other VAPs use the global IPv4 RADIUS server settings you congure.
If wireless clients use a security mode that does not communicate with the RADIUS server, or if the RADIUS server does not provide the VLAN information, you can assign a VLAN ID to each VAP. The AP assigns the VLAN to all wireless clients that connect to the AP through that VAP.
Note: Before you congure VLANs on the AP, be sure to verify that the switch and DHCP server the AP uses can support IEEE 802.1Q VLAN encapsulation.
To set up multiple VAPs, click Manage > VAP.
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Figure 22 - Modify Virtual Access Point Settings
Section 4 - Managing the Access Point
The following table describes the elds and conguration options on the VAP page.
Field Description
RADIUS IP Address
Type
Specify the IP version that the RADIUS server uses. You can toggle between the address types to congure IPv4 and IPv6 global RADIUS address settings, but the AP contacts only the RADIUS server or servers for the address
type you select in this eld.
RADIUS IP Address
Enter the IPv4 or IPv6 address for the primary global RADIUS server. By default, each VAP uses the global RADIUS settings that you dene for the AP at the top of the VAP page.
RADIUS IPv6
Address
When the rst wireless client tries to authenticate with the AP, the AP sends an
authentication request to the primary server. If the primary server responds to the authentication request, the AP continues to use this RADIUS server as the primary server, and authentication requests are sent to the address you specify. If the IPv4 RADIUS IP Address Type option is selected in the previous eld, enter the IP address of the RADIUS server that all VAPs use by default, for example 192.168.10.23. If the IPv6 RADIUS IP Address Type option is selected, enter the IPv6 address of the primary global RADIUS server, for example 2001:0db8:1234::abcd.
RADIUS IP or IPv6
Address 1–3
Enter up to three IPv4 or IPv6 addresses to use as the backup RADIUS servers. The eld
label is RADIUS IP Address when the IPv4 RADIUS IP Address Type option is selected and RADIUS IPv6 Address when the IPv6 RADIUS IP Address Type option is selected.
If authentication fails with the primary server, each congured backup server is tried in
sequence. The IPv4 or IPv6 address must be valid in order for the AP to attempt to contact the server.
RADIUS Key Enter the RADIUS key in the text box.
The RADIUS Key is the shared secret key for the global RADIUS server. You can use up to 63 standard alphanumeric and special characters. The key is case sensitive, and you must
congure the same key on the AP and on your RADIUS server. The text you enter will be
displayed as “*” characters to prevent others from seeing the RADIUS key as you type.
RADIUS Key 1–3 Enter the RADIUS key associated with the congured backup RADIUS servers. The server
at RADIUS IP Address-1 uses RADIUS Key-1, RADIUS IP Address-2 uses RADIUS Key-2,
and so on.
Enable RADIUS
Accounting
Select this option to track and measure the resources a particular user has consumed
such as system time, amount of data transmitted and received, and so on. If you enable RADIUS accounting, it is enabled for the primary RADIUS server and all backup servers.
Enable RADIUS
FailThrough
Select this option to allow the secondary RADIUS server to authenticate wireless clients
if the authentication with the primary RADIUS server is unsuccessful, or if the primary RADIUS server is unavailable.
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Field Description
Radio Select the radio to congure. VAPs are congured independently on each radio. VAP You can congure up to 16 VAPs for each radio. VAP0 is the physical radio interface, so to
disable VAP0, you must disable the radio.
Enabled You can enable or disable a congured network.
•) To enable the specied network, select the Enabled option beside the appropriate
VA P.
•) To disable the specied network, clear the Enabled option beside the appropriate VAP.
If you disable the specied network, you will lose the VLAN ID you entered.
VLAN ID When a wireless client connects to the AP by using this VAP, the AP tags all trafc from the
wireless client with the VLAN ID you enter in this eld unless you enter the untagged VLAN
ID or use a RADIUS server to assign a wireless client to a VLAN. The range for the VLAN ID is 1 – 4094. If you use RADIUS-based authentication for clients, you can optionally add the following
attributes to the appropriate le in the RADIUS or AAA server to congure a VLAN for the
client:
•) “Tunnel-Type”
•) “Tunnel-Medium-Type”
•) “Tunnel-Private-Group-ID”
The RADIUS-assigned VLAN ID overrides the VLAN ID you congure on the VAP page. You congure the untagged and management VLAN IDs on the Ethernet Settings page. For
more information, see “Ethernet Settings” on page 35.
SSID Enter a name for the wireless network. The SSID is an alphanumeric string of up to 32
characters. You can use the same SSID for multiple VAPs, or you can choose a unique SSID for each VAP. Note: If you are connected as a wireless client to the same AP that you are administering, resetting the SSID will cause you to lose connectivity to the AP. You will need to reconnect to the new SSID after you save this new setting.
Broadcast SSID Specify whether to allow the AP to broadcast the Service Set Identier (SSID) in its beacon
frames. The Broadcast SSID parameter is enabled by default. When the VAP does not broadcast its SSID, the network name is not displayed in the list of available networks on
a client station. Instead, the client must have the exact network name congured in the
supplicant before it is able to connect.
•) To enable the SSID broadcast, select the Broadcast SSID check box.
•) To prohibit the SSID broadcast, clear the Broadcast SSID check box.
Note: Disabling the broadcast SSID is sufcient to prevent clients from accidentally
connecting to your network, but it will not prevent even the simplest of attempts by a hacker
to connect or monitor unencrypted trafc. Suppressing the SSID broadcast offers a very
minimal level of protection on an otherwise exposed network (such as a guest network) where the priority is making it easy for clients to get a connection and where no sensitive information is available.
Security Select one of the following Security modes for this VAP:
•) None
•) Static WEP
•) WPA Personal
•) IEEE 802.1X
•) WPA Enterprise
If you select a security mode other than None, additional elds appear. These elds are
explained below.
Note: The Security mode you set here is specically for this VAP.
MAC Authentication
Type
You can congure a global list of MAC addresses that are allowed or denied access to
the network. The drop-down menu for this feature allows you to select the type of MAC Authentication to use:
•) Disabled: Do not use MAC Authentication.
•) Local: Use the MAC Authentication list that you congure on the MAC Authentication
page.
•) RADIUS: Use the MAC Authentication list on the external RADIUS server.
For more information about MAC Authentication, see “Controlling Access by MAC
Authentication” on page 59.
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Field Description
Redirect Mode Enable the HTTP redirect feature to redirect wireless clients to a custom Web page.
When redirect mode is enabled, the user will be redirected to the URL you specify after the wireless client associates with an AP and the user opens a Web browser on the client to access the Internet. The custom Web page must be located on an external Web server and might contain information such as the company logo and network usage policy. Note: The wireless client is redirected to the external Web server only once while it is associated with the AP.
Redirect URL Specify the URL where the Web browser is to be redirected after the wireless client
associates with the AP and sends HTTP trafc.
Table 22 - Virtual Access Point Settings
Note: After you congure the VAP settings, you must click Apply to apply the changes and to save the settings. Changing some settings might cause the AP to stop and restart system processes. If this happens, wireless clients will temporarily lose connectivity. We recommend that you change
AP settings when WLAN trafc is low.
Section 4 - Managing the Access Point
None (Plain-text)
If you select None as your security mode, no further options are congurable on the AP. This mode means that any data transferred to and from the UAP is not encrypted. This security mode can be useful during initial network
conguration or for problem solving, but it is not recommended for regular use on the Internal network because it is
not secure.
Static WEP
Wired Equivalent Privacy (WEP) is a data encryption protocol for 802.11 wireless networks. All wireless stations and APs on the network are congured with a static 64-bit (40-bit secret key + 24-bit initialization vector (IV)) or 128-bit (104-bit secret key + 24-bit IV) Shared Key for data encryption.
Static WEP is not the most secure mode available, but it offers more protection than setting the security mode to None (Plain-text) as it does prevent an outsider from easily snifng out unencrypted wireless trafc.
WEP encrypts data moving across the wireless network based on a static key. (The encryption algorithm is a stream
cipher called RC4.)
Figure 23 - Modify Virtual Access Point Settings (Static WEP)
Field Description
Transfer Key Index Select a key index from the drop-down menu. Key indexes 1 through 4 are available. The
default is 1.
The Transfer Key Index indicates which WEP key the AP will use to encrypt the data it
transmits.
Key Length Specify the length of the key by clicking one of the radio buttons:
•) 64 bits
•) 128 bits
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Field Description
Key Type Select the key type by clicking one of the radio buttons:
•) ASCII
•) Hex
WEP Keys You can specify up to four WEP keys. In each text box, enter a string of characters for each
key. The keys you enter depend on the key type selected:
•) ASCII — Includes upper and lower case alphabetic letters, the numeric digits, and special symbols such as @ and #.
•) Hex — Includes digits 0 to 9 and the letters A to F.
Use the same number of characters for each key as specied in the Characters Required eld. These are the RC4 WEP keys shared with the stations using the AP. Each client station must be congured to use one of these same WEP keys in the same slot as specied here on the AP. Characters Required: The number of characters you enter into the WEP Key elds is determined by the Key length and Key type you select. For example, if you use 128-bit ASCII keys, you must enter 26 characters in the WEP key. The number of characters required updates automatically based on how you set Key Length and Key Type.
Authentication The authentication algorithm denes the method used to determine whether a client station
is allowed to associate with an AP when static WEP is the security mode.
Specify the authentication algorithm you want to use by choosing one of the following options:
•) Open System authentication allows any client station to associate with the AP whether
that client station has the correct WEP key or not. This algorithm is also used in plaintext, IEEE 802.1X, and WPA modes. When the authentication algorithm is set to
Open System, any client can associate with the AP.
Note: Just because a client station is allowed to associate does not ensure it can exchange
trafc with an AP. A station must have the correct WEP key to be able to successfully access
and decrypt data from an AP, and to transmit readable data to the AP.
•) Shared Key authentication requires the client station to have the correct WEP key in
order to associate with the AP. When the authentication algorithm is set to Shared
Key, a station with an incorrect WEP key will not be able to associate with the AP.
•) Both Open System and Shared Key. When you select both authentication algorithms:
•) Client stations congured to use WEP in shared key mode must have a valid WEP
key in order to associate with the AP.
•) Client stations congured to use WEP as an open system (shared key mode not
enabled) will be able to associate with the AP even if they do not have the correct
WEP key.
Table 23 - Static WEP
Static WEP Rules
Section 4 - Managing the Access Point
If you use Static WEP, the following rules apply:
•) All client stations must have the Wireless LAN (WLAN) security set to WEP, and all clients must have one of the WEP keys specied on the AP in order to de-code AP-to-station data transmissions.
•) The AP must have all keys used by clients for station-to-AP transmit so that it can de-code the station
transmissions.
•) The same key must occupy the same slot on all nodes (AP and clients). For example if the AP denes abc123 key as WEP key 3, then the client stations must dene that same string as WEP key 3.
•) Client stations can use different keys to transmit data to the access point. (Or they can all use the same key, but
this is less secure because it means one station can decrypt the data being sent by another.)
•) On some wireless client software, you can congure multiple WEP keys and dene a client station “transfer
key index”, and then set the stations to encrypt the data they transmit using different keys. This ensures that neighboring APs cannot decode each other’s transmissions.
•) You cannot mix 64-bit and 128-bit WEP keys between the access point and its client stations.
IEEE 802.1X
IEEE 802.1X is the standard dening port-based authentication and infrastructure for doing key management. Extensible Authentication Protocol (EAP) messages sent over an IEEE 802.11 wireless network using a protocol
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Section 4 - Managing the Access Point
called EAP Encapsulation Over LANs (EAPOL). IEEE 802.1X provides dynamically-generated keys that are
periodically refreshed. An RC4 stream cipher is used to encrypt the frame body and cyclic redundancy checking (CRC) of each 802.11 frame.
This mode requires the use of an external RADIUS server to authenticate users. The AP requires a RADIUS server
capable of EAP, such as the Microsoft Internet Authentication Server. To work with Windows clients, the authentication server must support Protected EAP (PEAP) and MSCHAP V2.
You can use any of a variety of authentication methods that the IEEE 802.1X mode supports, including certicates, Kerberos, and public key authentication. You must congure the client stations to use the same authentication method
the AP uses.
Figure 24 - Modify Virtual Access Point Settings (IEEE802.1X)
Field Description
Use Global RADIUS
Server Settings
By default each VAP uses the global RADIUS settings that you dene for the AP at the top of the VAP page. However, you can congure each VAP to use a different set of RADIUS
servers. To use the global RADIUS server settings, make sure the check box is selected. To use a separate RADIUS server for the VAP, clear the check box and enter the RADIUS
server IP address and key in the following elds.
RADIUS IP Address
Type
Specify the IP version that the RADIUS server uses.
You can toggle between the address types to congure IPv4 and IPv6 global RADIUS
address settings, but the AP contacts only the RADIUS server or servers for the address
type you select in this eld.
RADIUS IP Address
RADIUS IPv6
Address
Enter the IPv4 or IPv6 address for the primary RADIUS server for this VAP. If the IPv4 RADIUS IP Address Type option is selected in the previous eld, enter the IP
address of the RADIUS server that all VAPs use by default, for example 192.168.10.23. If the IPv6 RADIUS IP Address Type option is selected, enter the IPv6 address of the primary global RADIUS server, for example 2001:0db8:1234::abcd.
RADIUS IP or IPv6
Address 1–3
Enter up to three IPv4 and/or IPv6 addresses to use as the backup RADIUS servers for this VAP. The eld label is RADIUS IP Address when the IPv4 RADIUS IP Address Type option
is selected and RADIUS IPv6 Address when the IPv6 RADIUS IP Address Type option is selected.
If authentication fails with the primary server, each congured backup server is tried in
sequence.
RADIUS Key Enter the RADIUS key in the text box.
The RADIUS Key is the shared secret key for the global RADIUS server. You can use up to 63 standard alphanumeric and special characters. The key is case sensitive, and you must
congure the same key on the AP and on your RADIUS server. The text you enter will be
displayed as “*” characters to prevent others from seeing the RADIUS key as you type.
RADIUS Key 1 – 3 Enter the RADIUS key associated with the congured backup RADIUS servers. The server
at RADIUS IP Address-1 uses RADIUS Key-1, RADIUS IP Address-2 uses RADIUS Key-2,
and so on.
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Field Description
Enable RADIUS
Accounting
Enable RADIUS
FailThrough
Active Server Specify which congured RADIUS server to use as the active RADIUS server.
Broadcast Key
Refresh Rate
Session Key
Refresh Rate
Select this option to track and measure the resources a particular user has consumed
such as system time, amount of data transmitted and received, and so on. If you enable RADIUS accounting, it is enabled for the primary RADIUS server and all backup servers.
Select this option to allow the secondary RADIUS server to authenticate wireless clients if the authentication with the primary RADIUS server is unsuccessful, or if the primary RADIUS server is unavailable.
Enter a value to set the interval at which the broadcast (group) key is refreshed for clients
associated to this VAP (the default is 300). The valid range is 0 – 86400 seconds. A value of 0 indicates that the broadcast key is not refreshed.
Enter a value to set the interval at which the AP will refresh session (unicast) keys for each
client associated to the VAP. The valid range is 0 – 86400 seconds. A value of 0 indicates that the broadcast key is not refreshed.
Table 24 - IEEE 802.1X
Note: After you congure the security settings, you must click Apply to apply the changes and to
save the settings.
Section 4 - Managing the Access Point
WPA Personal
WPA Personal is a Wi-Fi Alliance IEEE 802.11i standard, which includes AES-CCMP and TKIP mechanisms. The Personal version of WPA employs a pre-shared key (instead of using IEEE 802.1X and EAP as is used in the Enterprise WPA security mode). The PSK is used for an initial check of credentials only.
This security mode is backwards-compatible for wireless clients that support the original WPA.
Figure 25 - Modify Virtual Access Point Settings (WPA Personal)
Field Description
WPA Versions Select the types of client stations you want to support:
•) WPA. If all client stations on the network support the original WPA but none support the newer WPA2, then select WPA.
•) WPA2. If all client stations on the network support WPA2, we suggest using WPA2
which provides the best security per the IEEE 802.11i standard.
•) WPA and WPA2. If you have a mix of clients, some of which support WPA2 and others which support only the original WPA, select both of the check boxes. This lets both WPA and WPA2 client stations associate and authenticate, but uses the more robust
WPA2 for clients who support it. This WPA conguration allows more interoperability,
at the expense of some security.
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Field Description
Cipher Suites Select the cipher suite you want to use:
•) TKIP
•) CCMP (AES)
•) TKIP and CCMP (AES)
Both TKIP and AES clients can associate with the AP. WPA clients must have one of the
following to be able to associate with the AP:
•) A valid TKIP key
•) A valid AES-CCMP key
Clients not congured to use a WPA Personal will not be able to associate with the AP.
Key The Pre-shared Key is the shared secret key for WPA Personal. Enter a string of at least 8
characters to a maximum of 63 characters. Acceptable characters include upper and lower case alphabetic letters, the numeric digits, and special symbols such as @ and #.
Broadcast Key
Refresh Rate
Enter a value to set the interval at which the broadcast (group) key is refreshed for clients
associated to this VAP (the default is 300). The valid range is 0–86400 seconds. A value of 0 indicates that the broadcast key is not refreshed.
Table 25 - WPA Personal
Note: After you congure the security settings, you must click Apply to apply the changes and to save the settings.
Section 4 - Managing the Access Point
WPA Enterprise
WPA Enterprise with RADIUS is an implementation of the Wi-Fi Alliance IEEE 802.11i standard, which includes CCMP (AES), and TKIP mechanisms. The Enterprise mode requires the use of a RADIUS server to authenticate users.
This security mode is backwards-compatible with wireless clients that support the original WPA.
Figure 26 - Modify Virtual Access Point Settings (WPA Enterprise)
Field Description
WPA Versions Select the types of client stations you want to support:
•) WPA. If all client stations on the network support the original WPA but none support the newer WPA2, then select WPA.
•) WPA2. If all client stations on the network support WPA2, we suggest using WPA2
which provides the best security per the IEEE 802.11i standard.
•) WPA and WPA2. If you have a mix of clients, some of which support WPA2 and others which support only the original WPA, select both WPA and WPA2. This lets both WPA and WPA2 client stations associate and authenticate, but uses the more robust WPA2
for clients who support it. This WPA conguration allows more interoperability, at the
expense of some security.
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Field Description
Enable pre-
authentication
Cipher Suites Select the cipher suite you want to use:
Use Global RADIUS
Server Settings
RADIUS IP Address
Type
RADIUS IP Address
RADIUS IPv6
Address
RADIUS IP or IPv6
Address 1–3
RADIUS Key Enter the RADIUS key in the text box.
RADIUS Key 1–3 Enter the RADIUS key associated with the congured backup RADIUS servers. The server
Enable RADIUS
Accounting
Enable RADIUS
FailThrough
Active Server Specify which congured RADIUS server to use as the active RADIUS server.
Broadcast Key
Refresh Rate
If for WPA Versions you select only WPA2 or both WPA and WPA2, you can enable pre­authentication for WPA2 clients. Click Enable pre-authentication if you want WPA2 wireless clients to send pre­authentication packet. The pre-authentication information will be relayed from the AP
the client is currently using to the target AP. Enabling this feature can help speed up
authentication for roaming clients who connect to multiple APs. This option does not apply if you selected WPA for WPA Versions because the original WPA does not support this feature.
•) TKIP
•) CCMP (AES)
•) TKIP and CCMP (AES)
By default both TKIP and CCMP are selected. When both TKIP and CCMP are selected, client stations congured to use WPA with RADIUS must have one of the following:
•) A valid TKIP RADIUS IP address and RADIUS Key
•) A valid CCMP (AES) IP address and RADIUS Key
By default each VAP uses the global RADIUS settings that you dene for the AP at the top of the VAP page. However, you can congure each VAP to use a different set of RADIUS
servers. To use the global RADIUS server settings, make sure the check box is selected. To use a separate RADIUS server for the VAP, clear the check box and enter the RADIUS
server IP address and key in the following elds.
Specify the IP version that the RADIUS server uses. You can toggle between the address types to congure IPv4 and IPv6 global RADIUS address settings, but the AP contacts only the RADIUS server or servers for the address
type you select in this eld. Enter the IPv4 or IPv6 address for the primary RADIUS server for this VAP.
If the IPv4 RADIUS IP Address Type option is selected in the previous eld, enter the IP address of the RADIUS server that all VAPs use by default, for example 192.168.10.23. If the IPv6 RADIUS IP Address Type option is selected, enter the IPv6 address of the primary global RADIUS server, for example 2001:0db8:1234::abcd.
Enter up to three IPv4 and/or IPv6 addresses to use as the backup RADIUS servers for this VAP. The eld label is RADIUS IP Address when the IPv4 RADIUS IP Address Type option
is selected and RADIUS IPv6 Address when the IPv6 RADIUS IP Address Type option is selected.
If authentication fails with the primary server, each congured backup server is tried in
sequence.
The RADIUS Key is the shared secret key for the global RADIUS server. You can use up to 63 standard alphanumeric and special characters. The key is case sensitive, and you must
congure the same key on the AP and on your RADIUS server. The text you enter will be
displayed as “*” characters to prevent others from seeing the RADIUS key as you type.
at RADIUS IP Address-1 uses RADIUS Key-1, RADIUS IP Address-2 uses RADIUS Key-2,
and so on.
Select this option to track and measure the resources a particular user has consumed such as system time, amount of data transmitted and received, and so on. If you enable RADIUS accounting, it is enabled for the primary RADIUS server and all backup servers.
Select this option to allow the secondary RADIUS server to authenticate wireless clients if the authentication with the primary RADIUS server is unsuccessful, or if the primary RADIUS server is unavailable.
Enter a value to set the interval at which the broadcast (group) key is refreshed for clients
associated to this VAP (the default is 300). The valid range is 0–86400 seconds. A value of 0 indicates that the broadcast key is not refreshed.
Section 4 - Managing the Access Point
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Field Description
Session Key
Refresh Rate
Enter a value to set the interval at which the AP will refresh session (unicast) keys for each
client associated to the VAP. The valid range is 0–86400 seconds. A value of 0 indicates that the broadcast key is not refreshed.
Note: After you congure the security settings, you must click Apply to apply the changes and to save the settings.
Table 26 - WPA Enterprise
Section 4 - Managing the Access Point
Conguring the Wireless Distribution System (WDS)
The Wireless Distribution System (WDS) allows you to connect multiple UAPs. With WDS, APs communicate with one another without wires in a standardized way. This capability is critical in providing a seamless experience for roaming clients and for managing multiple wireless networks. It can also simplify the network infrastructure by reducing the
amount of cabling required. You can congure the AP in point-to-point or point-to-multipoint bridge mode based on the
number of links to connect.
In the point-to-point mode, the AP accepts client associations and communicates with wireless clients and other
repeaters. The AP forwards all trafc meant for the other network over the tunnel that is established between the APs.
The bridge does not add to the hop count. It functions as a simple OSI layer 2 network device.
In the point-to-multipoint bridge mode, one AP acts as the common link between multiple APs. In this mode, the central AP accepts client associations and communicates with the clients and other repeaters. All other APs associate only with the central AP that forwards the packets to the appropriate wireless bridge for routing purposes.
The UAP can also act as a repeater. In this mode, the AP serves as a connection between two APs that might be too far apart to be within cell range. When acting as a repeater, the AP does not have a wired connection to the LAN
and repeats signals by using the wireless connection. No special conguration is required for the AP to function as a
repeater, and there are no repeater mode settings. Wireless clients can still connect to an AP that is operating as a repeater.
Note: When you move an AP from Standalone Mode to Managed Mode, WDS is disabled.
In Managed Mode, you congure the AP by using the D-Link Unied Wireless Switch. The
Administrator UI, as well as Telnet, SSH, and SNMP access are disabled when the AP is in Managed Mode.
To specify the details of trafc exchange from this access point to others, click the WDS tab.
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Figure 27 - Congure WDS Bridges
Before you congure WDS on the AP, note the following guidelines:
•) When using WDS, be sure to congure WDS settings on both APs participating in the WDS link.
•) You can have only one WDS link between any pair of APs. That is, a remote MAC address may appear only
once on the WDS page for a particular AP.
•) Both APs participating in a WDS link must be on the same Radio channel and using the same IEEE 802.11
mode. (See “Modifying Radio Settings” on page 40 for information on conguring the Radio mode and channel.)
•) When 802.11h is operational, setting up two WDS links can be difcult.
To congure WDS on this AP, describe each AP intended to receive handoffs and send information to this AP. For each destination AP, congure the elds listed in the table below.
Field Description
Spanning Tree Mode
Spanning Tree Protocol (STP) prevents switching loops. STP is recommended if you
congure WDS links.
Select Enabled to use STP Select Disabled to turn off STP links (not recommended)
Radio For each WDS link on a two-radio AP, select Radio One or Radio Two. The rest of the
settings for the link apply to the radio selected in this eld. The read-only Local Address will change depending on which Radio you select in this eld.
Local Address Indicates the MAC addresses for this AP.
For each WDS link on a two-radio AP, the Local Address reects the MAC address for the
internal interface on the selected radio (Radio One on wlan0 or Radio Two on wlan1).
Remote Address Specify the MAC address of the destination AP; that is, the AP on the other end of the WDS
link to which data will be sent or handed-off and from which data will be received. Click the drop-down arrow to the right of the Remote Address eld to see a list of all the available MAC Addresses and their associated SSIDs on the network. Select the appropriate MAC address from the list. Note: The SSID displayed in the drop-down list is simply to help you identify the correct MAC Address for the destination AP. This SSID is a separate SSID to that which you set for the WDS link. The two do not (and should not) be the same value or name.
Encryption You can use no encryption, WEP, or WPA (PSK) on the WDS link.
If you are unconcerned about security issues on the WDS link you may decide not to set any type of encryption. Alternatively, if you have security concerns you can choose between
Static WEP and WPA (PSK). In WPA (PSK) mode, the AP uses WPA2-PSK with CCMP (AES) encryption over the WDS link.
Table 27 - WDS Settings
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If you select None as your preferred WDS encryption option, you will not be asked to ll in any more elds on the WDS page. All data transferred between the two APs on the WDS link will be unencrypted.
Note: To disable a WDS link, you must remove the value congured in the Remote Address eld.
Section 4 - Managing the Access Point
WEP on WDS Links
The following table describes the additional elds that appear when you select WEP as the encryption type.
Field Description
Encryption WEP WEP Select this option if you want to set WEP encryption on the WDS link. Key Length If WEP is enabled, specify the length of the WEP key:
•) 64 bits
•) 128 bits
Key Type If WEP is enabled, specify the WEP key type:
•) ASCII
•) Hex
Characters Required
WEP Key Enter a string of characters. If you selected ASCII, enter any combination of 0 – 9, a – z, and
Indicates the number of characters required in the WEP key. The number of characters required updates automatically based on how you set Key Length and Key Type.
A – Z. If you selected HEX, enter hexadecimal digits (any combination of 0 – 9 and a – f or A – F). These are the RC4 encryption keys shared with the stations using the AP.
Table 28 - WEP on WDS Links
WPA/PSK on WDS Links
The following table describes the aAdditional elds that appear when you select WPA/PSK as the encryption type.
Field Description
Encryption WPA (PSK)
SSID Enter an appropriate name for the new WDS link you have created. This SSID should be
different from the other SSIDs used by this AP. However, it is important that the same SSID is also entered at the other end of the WDS link. If this SSID is not the same for both APs on the WDS link, they will not be able to communicate and exchange data. The SSID can be any alphanumeric combination.
Key Enter a unique shared key for the WDS bridge. This unique shared key must also be
entered for the AP at the other end of the WDS link. If this key is not the same for both APs, they will not be able to communicate and exchange data.
The WPA-PSK key is a string of at least 8 characters to a maximum of 63 characters.
Acceptable characters include upper and lower case alphabetic letters, the numeric digits, and special symbols such as @ and #.
Table 29 - WPA/PSK on WDS Links
Note: After you congure the WDS settings, you must click Apply to apply the changes and
to save the settings. Changing some settings might cause the AP to stop and restart system processes. If this happens, wireless clients will temporarily lose connectivity. We recommend that
you change AP settings when WLAN trafc is low.
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Section 4 - Managing the Access Point
Controlling Access by MAC Authentication
A Media Access Control (MAC) address is a hardware address that uniquely identies each node of a network. All IEEE 802 network devices share a common 48-bit MAC address format, usually displayed as a string of 12
hexadecimal digits separated by colons, for example 00:DC:BA:09:87:65. Each wireless network interface card (NIC) used by a wireless client has a unique MAC address.
You can use the Administrator UI on the AP or use an external RADIUS server to control access to the network through the AP based on the MAC address of the wireless client. This feature is called MAC Authentication or MAC
Filtering. To control access, you congure a global list of MAC addresses locally on the AP or on an external RADIUS server. Then, you set a lter to specify whether the clients with those MAC addresses are allowed or denied access to
the network. When a wireless client attempts to associate with an AP, the AP looks up the MAC address of the client in the local Stations List or on the RADIUS server. If it is found, the global allow or deny setting is applied. If it is not found, the opposite is applied.
On the VAP page, the MAC Authentication Type setting controls whether the AP uses the station list congured locally on the MAC Authentication page or the external RADIUS server. The Allow/Block lter setting on the MAC Authentication page determines whether the clients in the station list (local or RADIUS) can access the network
through the AP. For more information about setting the MAC authentication type, see “Virtual Access Point Settings”
on page 47.
Conguring a MAC Filter and Station List on the AP
The MAC Authentication page allows you to control access to UAP based on MAC addresses. Based on how you set the lter, you can allow only client stations with a listed MAC address or deny access to the stations listed.
When you enable MAC Authentication and specify a list of approved MAC addresses, only clients with a listed MAC address can access the network. If you specify MAC addresses to deny, all clients can access the network except for the clients on the deny list.
To enable ltering by MAC address, click the MAC Authentication tab.
Figure 28 - Congure MAC Authentication
Note: Global MAC Authentication settings apply to all VAPs on all supported radios.
The following table describes the elds and conguration options available on the MAC Authentication page.
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Field Description
Filter To set the MAC Address Filter, select one of the following options:
•) Allow only stations in the list. Any station that is not in the Stations List is denied access to the network through the AP.
•) Block all stations in list. Only the stations that appear in the list are denied access to the network through the AP. All other stations are permitted access.
Note: The lter you select is applied to the clients in the station list, regardless of whether
that station list is local or on the RADIUS server.
Stations List This is the local list of clients that are either permitted or denied access to the network
through the AP. To add a MAC Address to the local Stations List, enter its 48-bit MAC address into the lower text boxes, then click Add. To remove a MAC Address from the Stations List, select its 48-bit MAC address, then click Remove.
The stations in the list will either be allowed or denied access based on how you set the lter in the previous eld.
Note: If the MAC authentication type for the VAP is set to Local, the AP uses the Stations List to permit or deny the clients access to the network. If the MAC authentication type is set
to RADIUS, the AP ignores the MAC addresses congured in this list and uses the list that is stored on the RADIUS server. The MAC authentication type is set on the VAP conguration
page.
Table 30 - MAC Authentication
Section 4 - Managing the Access Point
Note: After you congure local MAC Authentication settings, you must click Apply to apply the changes and to save the settings. Changing some settings might cause the AP to stop and restart system processes. If this happens, wireless clients will temporarily lose connectivity. We
recommend that you change AP settings when WLAN trafc is low.
Conguring MAC Authentication on the RADIUS Server
If you use RADIUS MAC authentication for MAC-based access control, you must congure a station list on the
RADIUS server. The station list contains client MAC address entries, and the format for the list is described in the following table.
RADIUS Server Attribute Description Value
User-Name (1) MAC address of the client station. Valid Ethernet MAC Address. User-Password (2) A xed global password used to
lookup a client MAC entry.
Table 31 - RADIUS Server Attributes for MAC Authentication
NOPASSWORD
Conguring Load Balancing
You can set network utilization thresholds on the UAP to maintain the speed and performance of the wireless network as clients associate and disassociate with the AP. The load balancing settings apply to all supported radios.
To congure load balancing and set limits and behavior to be triggered by a specied utilization rate of the access
point, click the Load Balancing tab and update the elds shown in the following gure.
Figure 29 - Modify Load Balancing Settings
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