Operation/Reference Guide
NXA-WAP250G
802.11 b/g Wireless Access Point
for Modero Touch Panels
Control System Accessories
Last Revised: 5/30/2007
AMX Limited Warranty and Disclaimer
AMX warrants its products to be free of defects in material and workmanship under normal use for three (3) years from
the date of purchase from AMX, with the following exceptions:
• Electroluminescent and LCD Control Panels are warranted for three (3) years, except for the display and touch
overlay components that are warranted for a period of one (1) year.
• Disk drive mechanisms, pan/tilt heads, power supplies, and MX Series products are warranted for a period of one
(1) year.
• AMX Lighting products are guaranteed to switch on and off any load that is properly connected to our lighting
products, as long as the AMX Lighting products are under warranty. AMX does guarantee the control of dimmable
loads that are properly connected to our lighting products. The dimming performance or quality cannot be
guaranteed due to the random combinations of dimmers, lamps and ballasts or transformers.
• Unless otherwise specified, OEM and custom products are warranted for a period of one (1) year.
• AMX Software is warranted for a period of ninety (90) days.
• Batteries and incandescent lamps are not covered under the warranty.
This warranty extends only to products purchased directly from AMX or an Authorized AMX Dealer.
All products returned to AMX require a Return Material Authorization (RMA) number. The RMA number is obtained
from the AMX RMA Department. The RMA number must be clearly marked on the outside of each box. The RMA is
valid for a 30-day period. After the 30-day period the RMA will be cancelled. Any shipments received not consistent
with the RMA, or after the RMA is cancelled, will be refused. AMX is not responsible for products returned without a
valid RMA number.
AMX is not liable for any damages caused by its products or for the failure of its products to perform. This includes any
lost profits, lost savings, incidental damages, or consequential damages. AMX is not liable for any claim made by a
third party or by an AMX Dealer for a third party.
This limitation of liability applies whether damages are sought, or a claim is made, under this warranty or as a tort claim
(including negligence and strict product liability), a contract claim, or any other claim. This limitation of liability cannot
be waived or amended by any person. This limitation of liability will be effective even if AMX or an authorized
representative of AMX has been advised of the possibility of any such damages. This limitation of liability, however, will
not apply to claims for personal injury.
Some states do not allow a limitation of how long an implied warranty last. Some states do not allow the limitation or
exclusion of incidental or consequential damages for consumer products. In such states, the limitation or exclusion of
the Limited Warranty may not apply. This Limited Warranty gives the owner specific legal rights. The owner may also
have other rights that vary from state to state. The owner is advised to consult applicable state laws for full
determination of rights.
EXCEPT AS EXPRESSLY SET FORTH IN THIS WARRANTY, AMX MAKES NO OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE. AMX EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED IN THIS LIMITED
WARRANTY. ANY IMPLIED WARRANTIES THAT MAY BE IMPOSED BY LAW ARE LIMITED TO THE TERMS OF
THIS LIMITED WARRANTY.
Table of Contents
Table of Contents
Compliances .......................................................................................................1
Federal Communication Commission Interference Statement .................................. 1
IMPORTANT NOTE: FCC Radiation Exposure Statement ......................................... 1
EC Conformance Declaration.................................................................................... 2
NXA-WAP250G ..................................................................................................3
Overview .................................................................................................................. 3
Specifications ................................................................................................................. 3
Power Connector ............................................................................................................ 4
Ethernet Port .................................................................................................................. 4
Reset Button ................................................................................................................... 4
Installation ..........................................................................................................5
Overview .................................................................................................................. 5
Access Point Configuration....................................................................................... 6
Twisted-Pair Cable Assignments............................................................................... 6
Straight-Through Wiring ........................................................................................... 6
Hardware Description............................................................................................... 7
Reset Button Overview ................................................................................................... 7
LED Indicators ................................................................................................................. 7
Diagnosing Access Point Indicators................................................................................. 8
Initial Configuration ............................................................................................ 9
Selecting an Operation Mode................................................................................... 9
Access Point Mode.......................................................................................................... 9
Access Point Mode - Roaming ....................................................................................... 10
Access Point Mode - Repeater and Bridge Mode ......................................................... 11
Logging into the Web Interface.............................................................................. 12
Using the Setup Wizard .......................................................................................... 13
Step 1: Operation Mode Setting................................................................................... 13
Step 2: Network Setting ............................................................................................... 14
DHCP Server/NAT Setting ............................................................................................ 16
Step 3: Wireless VAP #1 Setting ................................................................................... 16
Step 4: Wireless VAP #2 Setting ................................................................................... 18
Finish and Reboot ......................................................................................................... 19
System Configuration .......................................................................................21
Information ............................................................................................................. 22
Information - System ..................................................................................................... 23
Information - Client ....................................................................................................... 24
NXA-WAP250G 802.11b/g Wireless Access Point
i
Table of Contents
Information - Network ................................................................................................... 25
Information - Event Log................................................................................................. 25
System Setting........................................................................................................ 26
System Setting - Administration .................................................................................... 26
System Setting - VLAN Status / Operation Mode ......................................................... 27
System Setting - VAP Management............................................................................... 28
System Settings - Reset System .................................................................................... 28
Wireless VAP Settings............................................................................................. 29
Wireless VAP Settings - Basic Setting............................................................................ 29
Wireless VAP Settings - Channel Setting....................................................................... 30
Wireless VAP Settings - WEP Setting ............................................................................ 31
Wireless VAP Settings - WPA / WPA2 Setting............................................................... 33
Network Settings.................................................................................................... 34
Network Settings - DHCP Client Setting ....................................................................... 34
Network Settings - DHCP Server/NAT Setting.............................................................. 35
Network Settings - PPPoE Setting ................................................................................ 36
Network Settings - Radius Server Setting ..................................................................... 37
Time and Log .......................................................................................................... 38
Updating Firmware ................................................................................................. 39
Upgrade via the Web Page ........................................................................................... 39
Upgrade via a Remote Server ....................................................................................... 40
Appendix A: Troubleshooting ..........................................................................43
Overview ................................................................................................................ 43
If Your WAP250G Is Stuck on the Emergent Recovery Screen................................ 43
Step 1: Website for free TFTP Server............................................................................ 43
Step 2: Choose Download site and Install TFTP Server ................................................. 43
Step 3: Copy Firmware file ............................................................................................ 44
Step 4: Ethernet Connectivity ....................................................................................... 44
Step 5: Launch TFTP Server........................................................................................... 44
Step 6: Change TFTP Server Settings............................................................................ 44
Step 7: Re-Connect to WAP 250G................................................................................. 45
ii
NXA-WAP250G 802.11b/g Wireless Access Point
Compliances
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected
Consult the dealer or an experienced radio/TV technician for help
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.
Compliances
IMPORTANT NOTE: FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with a minimum distance of 20 centimeters (8 inches)
between the radiator and your body. This transmitter must not be co-located or operating in conjunction
with any other antenna or transmitter.
The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any
other antenna or transmitter.
IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1
through 11.
NXA-WAP250G 802.11b/g Wireless Access Point
1
Compliances
EC Conformance Declaration
Marking by the above symbol indicates compliance with the Essential Requirements of the R&TTE
Directive of the European Union (1999/5/EC). This equipment meets the following conformance
standards:
EN 60950-1 (IEC 60950-1) - Product Safety
EN 300 328 - Technical requirements for 2.4 GHz radio equipment
EN 301 489-1, EN 301 489-17 - EMC requirements for radio equipment
This device is intended for use in the following European Community countries:
• Austria • Belgium • Denmark
• Finland • France • Germany
• Italy • Luxembourg • Netherlands
• Norway • Spain • Sweden
• Switzerland • United Kingdom • Portugal
• Greece • Ireland • Iceland
Requirements for indoor vs. outdoor operation, license requirements and allowed channels of operation
apply in some countries as described below:
In Italy the end-user must apply for a license from the national spectrum authority to operate
this device outdoors.
In Belgium outdoor operation is only permitted using the 2.46 - 2.4835 GHz band: Channel
13.
In France outdoor operation is only permitted using the 2.4 - 2.454 GHz band: Channels 1 - 7.
2
NXA-WAP250G 802.11b/g Wireless Access Point
NXA-WAP250G
Overview
AMX's new NXA-WAP250G 802.11b/g Wireless Access Point (FG2255-50) provides both high
performance and increased security to support all of AMX's G4 Modero wireless touch panels. The
NXA-WAP250G (FIG. 1) provides convenient WLAN access for office/home computers with
connection speeds of up to 54Mbps. This Wi-Fi certified WAP incorporates wireless encryption
standards such as enterprise-grade WPA2, WPA, 802.1x, MAC Address filtering, and 64-bit/128-bit
WEP encryption.
NXA-WAP250G
WLAN LED
LAN LED
OWER LED
FIG. 1 NXA-WAP250G Wireless Access Point
Refer to the “LED Indicators”
section for details
Specifications
NXA-WAP250G (FG2255-50) Specifications
Maximum Channels • FCC/IC: 1-11
• ETSI: 1-13
• MKK: 1-13
Maximum Clients 32 per VAP interface
Data Rate • 802.11g: 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps per channel
• 802.11b: 1, 2, 5.5, 11 Mbps per channel
Modulation Type • 802.11g: CCK, BPSK, QPSK, OFDM
• 802.11b: CCK, BPSK, QPSK
Network Configuration Infrastructure
Operating Frequency • 2.4 ~ 2.4835 GHz (US, Canada, ETSI)
• 2.4 ~ 2.483 GHz (Japan)
Wireless Output Power • 802.11b: 18 dBm (typical)
• 802.11g: 17 dBm @ 6 Mbps, 14dBm @ 54 Mbps
Wireless Receive Sensitivity • 802.11b: -90 dBm @ 1 Mbps, -84 dBm @ 11 Mbps
• 802.11g: -86 dBm @ 6 Mbps, -68 dBm @ 54 Mbps
AC Power Adapter • Input: 100-240 VAC, 50-60 Hz
• Output: 5 VDC, 2 A
Unit Power Supply • DC Input: 5 VDC, 2 A maximum
• Power Consumption: 6.5 W maximum
LED Indicators • POWER (Power),
• LAN (Ethernet Link/Activity),
• WLAN (Wireless Link/Activity)
NXA-WAP250G 802.11b/g Wireless Access Point
3
NXA-WAP250G
NXA-WAP250G Specifications (Cont.)
Network Management Web-browser
Temperature • Operating: 0 to 50 °C (32 to 122 °F)
• Storage: -20 to 70 °C (32 to 158 °F)
Humidity 15% to 95% (non-condensing)
Compliances • FCC Part 15B Class B
• EN 55022 Class B
• EN 55024
• EN61000-3-2
• EN61000-3-3
Standards • IEEE 802.3-2005 10BASE-T, 100BASE-TX
• IEEE 802.11b, g
• Wi-Fi 11b/g, WPA, WPA2, WMM
Radio Signal Certification • FCC Part 15C 15.247, 15.207 (2.4 GHz)
• EN 300-328
• EN 301 489-1
• EN 301 489-17
• ARIB STD-T66
• IC RSS-210
Safety • EN 60950-1
• IEC 60950-1 (CB)
Included Accessories: • AC power adapter set (includes 4 plug snaps)
• Category 5 (CAT5) network cable
• NXA-WAP250G Installation Guide
• WallMount/Surface mounting installation kit (including two screws)
Power Connector
The access point does not have a power switch. It is powered on when connected to the AC power
adapter, and the power adapter is connected to a power source. The power adapter automatically adjusts
to any voltage between 100-240 volts at 50 or 60 Hz. No voltage range settings are required.
Ethernet Port
The access point has one 10BASE-T/100BASE-TX RJ-45 port that can be attached directly to 10BASET/100BASE-TX LAN segments. These segments must conform to the IEEE 802.3-2005 specifications.
This port supports automatic MDI/MDI-X operation, so you can use straight-through cables for all
network connections to PCs, switches, or hubs.
Reset Button
The Reset button is used to restart the access point or restore the factory default configuration. If you
hold down the button for less than 5 seconds, the access point will perform a hardware reset. If you hold
down the button for 5 seconds or more, any configuration changes you may have made are removed, and
the factory default configuration is restored to the access point.
4
NXA-WAP250G 802.11b/g Wireless Access Point
Installation
Overview
To install the Access Point, follow these steps:
1. Select a Site – Choose a proper place for the access point. For optimum performance, consider
these points:
Mount the access point as high as possible above any obstructions in the coverage area. Avoid
Mount away from any signal absorbing or reflecting structures (such as those containing
Avoid radio interference by mounting away from other 802.11b or g wireless devices.
2. Mount the Access Point – The access point is designed to be mounted on any horizontal surface,
such as a desktop, or on a wall. The access point can be mounted on a wall by marking the position
of the mounting screws (included) on the wall so they line up with the two mounting slots on the
bottom of the access point. Set the screws into the wall, leaving about 3 mm (0.12 in.) clearance
from the wall. Then slide the access point down onto the screws.
3. Connect the Power Cord – Connect the power adapter to the access point, and plug the power
adapter into an AC power outlet.
Installation
mounting next to or near building support columns or other obstructions.
metal).
Use ONLY the power adapter supplied with the access point. Otherwise, the product
may be damaged.
4. Observe the Indicator LEDs – When you power on the access point verify that the POWER LED
turns on and that the other LED indicators start functioning.
5. Connect the Ethernet Cable – The access point can be connected to any 10 or 100 Mbps Ethernet
network device, such as a hub or a switch. Connect your network to the RJ-45 port on the back
panel using category 3, 4, or 5 UTP Ethernet cable. When the access point and the connected device
are powered on, the LAN LED should turn on indicating a valid network connection. If the LAN
LED fails to turn on, refer to the Appendix A: Troubleshooting section on page 43.
The RJ-45 port on the access point supports automatic MDI/MDI-X operation, so you
can use straight-through cables for all network connections to PCs, switches, or
hubs.
NXA-WAP250G 802.11b/g Wireless Access Point
5
Installation
Access Point Configuration
The access point can be configured by connecting a PC to its Ethernet port and accessing the web
interface.
The default IP address of the access point is 192.168.1.240, with login user name “Admin” and default
password “1988”.
Twisted-Pair Cable Assignments
For 10/100BASE-TX connections, a twisted-pair cable must have two pairs of wires. Each wire pair is
identified by two different colors. For example, one wire might be green and the other, green with white
stripes. Also, an RJ-45 connector must be attached to both ends of the cable.
Each wire pair must be attached to the RJ-45 connectors in a specific orientation.
(See “Crossover Wiring” and “Crossover Wiring” for an explanation.)
DO NOT plug a phone jack connector into the RJ-45 port. Use only twisted-pair
cables with RJ-45 connectors that conform with FCC standards.
The following figure illustrates how the pins on the RJ-45 connector are numbered. Be sure to hold the
connectors in the same orientation when attaching the wires to the pins.
FIG. 2 RJ-45 connector pinouts
Straight-Through Wiring
If the twisted-pair cable is to join two ports and only one of the ports has an internal crossover (MDI-X),
the two pairs of wires must be straight-through. FIG. 3 diagrams the RJ-45 pinouts and signals for the
Ethernet RJ-45 connector and cable.
FIG. 3 Straight-Through Wiring
6
NXA-WAP250G 802.11b/g Wireless Access Point
Hardware Description
FIG. 7 shows the layout of the WAP250G connectors and components.
Installation
Ethernet LAN Port
Power Socket
(CAT5)
Antenna
WallMount Slots
Top View Bottom View
Reset Button
FIG. 4 NXA-WAP250G Component Locations
Reset Button Overview
The Reset Button (shown in FIG. 7) is used to either restart the WAP250G or restore the unit to its
factory default settings.
If you hold down the button for less than 5 seconds, the WAP will perform a hardware reset.
Is you hold down the button for more than 5 seconds, any current configuration changes and
settings (such as IP Address, MAC Address, security, etc.) are deleted and all of the unit’s
parameters are rest the factory defaulted settings.
LED Indicators
The access point includes three status LED indicators, as described in the following figure and table.
LED Status Description
POWER On Green Indicates that the system is working normally.
WLAN On/Flashing Green Indicates the 802.11g radio is enabled and transmitting or receiving data
Off Indicates the 802.11g radio is disabled.
LAN On/Flashing Green Indicates a valid link on the Ethernet port and that the access point is transmit-
Off
NXA-WAP250G 802.11b/g Wireless Access Point
through wireless links. The flashing rate is proportional to network activity.
ting or receiving data. The flashing rate is proportional to network activity.
The Ethernet port has no valid link.
7
Installation
Diagnosing Access Point Indicators
Symptom Action
POWER LED is Off • AC power adapter may be disconnected. Check connections between the access
point, the power adapter, and the wall outlet.
LAN LED is Off • Verify that the access point and attached device are powered on.
• Be sure the cable is plugged into both the access point and corresponding device.
• Verify that the proper cable type is used and its length does not exceed specified
limits.
• Check the cable connections for possible defects. Replace the defective cable if
necessary.
8
NXA-WAP250G 802.11b/g Wireless Access Point
Initial Configuration
The NXA-WAP250G offers a user-friendly web-based management interface for the configuration of all
the unit’s features. Any PC directly attached to the unit can access the management interface using a web
browser, such as Internet Explorer (version 6.0 or above).
The initial configuration steps can be made through the web browser interface using the Setup Wizard. It
is recommended to make the initial changes by connecting a PC directly to the NXA-WAP250G before
installing it in its intended location. The NXA-WAP250G has a default IP address of 192.168.1.240 and
a subnet mask of 255.255.255.0. If your PC has an IP address on the same subnet (that is, the PC and
NXA-WAP250G addresses both start 192.168.1.x), you can connect immediately to the web interface.
Otherwise, you must first change your PC’s IP address to be on the same subnet as the NXA-WAP250G.
The NXA-WAP250G can operate in one of two modes:
Access Point – Providing connectivity to wireless clients in the service area.
Repeater and Bridge – Providing an extended link to a remote access point from the wired
LAN. Access Point working in this mode could connect to another AP in Access Point mode
or Repeater and Bridge mode. Whenever there are two APs having wireless link together (one
in Access Point or Repeater and Bridge mode, another using Repeater and Bridge mode), and
also have wired link separately, these two APs are also working as “bridging” for the two
wired links.
In addition, the NXA-WAP250G offers full network management capabilities through an easy to
configure web interface.
Initial Configuration
Selecting an Operation Mode
Access Point Mode
The NXA-WAP250G provides access to a wired LAN for wireless stations (FIG. 1). The wireless
network is defined by a name, called the Service Set Identifier (SSID). All wireless stations must have
the same SSID, radio channel, and security settings as the NXA-WAP250G to be able to communicate.
Video display
monitor
NetLinx Central Controller
A/V Rack
NXA-ENET24 Switch
NXA-WAP250G
MVP Wireless
Touch Panel
FIG. 1 Access Point Mode - wired LAN for wireless stations
NXA-WAP250G 802.11b/g Wireless Access Point
9
Initial Configuration
Access Point Mode - Roaming
A wireless network can also support roaming for mobile users (FIG. 2). Multiple NXA-WAP250Gs can
be placed so that a continuous coverage area is created. Wireless users within this area can move freely
and remain connected to the network. All NXA-WAP250Gs and wireless stations in the network must be
configured with the same SSID. Neighboring NXA-WAP250Gs should be set to non-interfering radio
channels (that is, channels 1, 6, or 11 for 802.11b/g).
Video display
monitor
NetLinx Central Controller
NXA-ENET24 Switch
A/V Rack
NXA-ENET24 Switch
NXA-WAP250G
FIG. 2 Access Point Mode - roaming for mobile users
NXA-WAP250G
<BSS1>
MVP Wireless
Touch Panel
<BSS2>
<ESS>
10
NXA-WAP250G 802.11b/g Wireless Access Point
Initial Configuration
Access Point Mode - Repeater and Bridge Mode
The NXA-WAP250G can also operate in a “repeater and bridge” mode to extend the range of links to
wireless clients (FIG. 3). The NXA-WAP250G uses Wireless Distribution System (WDS) to forward
traffic between the repeater and the root access point. WDS is defined in the IEEE 802.11 standard for
wireless connections between NXA-WAP250Gs.
In repeater and bridge mode, the NXA-WAP250G supports an Ethernet link to a wired LAN. Note that
when the NXA-WAP250G operates in this mode only half the normal throughput is possible. This is
because the NXA-WAP250G has to receive and then re-transmit all data on the same channel. Once an
AP is configured as repeater, it could connect to another AP working in Access Point mode or Repeater
and Bridge mode. In a deployed topology that has a repeater and bridge AP involved, there should be one
AP working in Access Point mode.
Video display
monitor
A/V Rack
Network
Core
NetLinx Central
Controller
NXA-WAP250G
Repeater and
Bridge Mode
A/V Rack
NXA-ENET24
Switch
Video display
monitor
NXA-WAP250G
802.11g Radio
Repeater Link
802.11g Radio AP Link
NetLinx Central
Controller
NXA-ENET24
Switch
FIG. 3 Access Point Mode - Repeater and Bridge Mode
802.11g Radio
Bridge Link
NXA-WAP250G
Repeater and
Bridge Mode
MVP Wireless
Touch Panel
NXA-WAP250G 802.11b/g Wireless Access Point
11
Initial Configuration
Logging into the Web Interface
In the web browser’s address bar, type the default IP address: http://192.168.1.240. The web browser
displays the NXA-WAP250G’s login page.
The User ID is fixed as “Admin” (case-sensitive), and the default password is “1988” (FIG. 4).
FIG. 4 Login Page
It is strongly recommended that you configure a password. If a password is not
configured, the management interface is not protected and anyone that can connect
to the NXA-WAP250G may be able to compromise your network security.
For information on configuring a password, see the System Setting Administration section on page 26
The home page displays the Main Menu (FIG. 5). There are two options available, you can configure the
basic features of the NXA-WAP250G using the Setup Wizard’s simple steps, or you can configure all
features in detail using the Advanced Setup menu.
12
FIG. 5 Home Page
NXA-WAP250G 802.11b/g Wireless Access Point
Initial Configuration
Using the Setup Wizard
There are only a few basic steps you need to set up the NXA-WAP250G and provide a connection for
your AMX Control Panel and network access for other wireless devices.
The Setup Wizard takes you through configuration procedures for the general network settings, such as
IP configuration, wireless network name (Service Set Identifier), and wireless security. Follow these
steps:
To begin, login and select Start with Setup Wizard on the home page (FIG. 5).
Step 1: Operation Mode Setting
Select an operation mode according to how the unit will be used in your network (FIG. 6).
FIG. 6 Setup Wizard - Operation Mode setting
There are two operation modes:
AP — Set the device as an Access Point. The device can also act as a root bridge in a wireless
bridge network.
Repeater & Bridge — Set the device as a Wireless Repeater. The Root AP MAC Address can
be assigned manually or selected after clicking Scan.
Reboot the NXA-WAP250G after completing the settings.
Click Next to proceed.
NXA-WAP250G 802.11b/g Wireless Access Point
13
Initial Configuration
Step 2: Network Setting
The options on this page allow you to set the NXA-WAP250G’s IP address assignment method and
configures the local Dynamic Host Configuration Protocol (DHCP) server and Network Address
Translation (NAT) settings (FIG. 7).
FIG. 7 Setup Wizard - Network Setting
There are three basic methods for configuring the NXA-WAP250G’s IP address:
Dynamic IP — The IP address is assigned automatically from a home gateway router or other
device that has a DHCP server feature (FIG. 8).
14
FIG. 8 Setup Wizard - Network Setting (Dynamic IP settings)
PPPoE — The IP address is assigned automatically from an Internet service provider (ISP)
through an ADSL modem using Point-to-Point Protocol over Ethernet (PPPoE). If your ISP
has provided you with a user name and password, enter these in the corresponding text boxes
under PPPoE Setting (FIG. 9).
NXA-WAP250G 802.11b/g Wireless Access Point
FIG. 9 Setup Wizard - Network Setting (PPoE settings)
Initial Configuration
Static IP — The IP address is assigned manually by the user. This may be required if your
NXA-WAP250G is connected to a home gateway router or other device that does not support
a DHCP server (FIG. 10).
FIG. 10 Setup Wizard - Network Setting (Static IP settings)
If you select Static IP, enter an appropriate IP address and subnet mask that are compatible
with your existing network.
If a management station exists on another network segment, then you must enter the IP
address for a Default Gateway that can route traffic between these segments.
NXA-WAP250G 802.11b/g Wireless Access Point
15
Initial Configuration
Also enter the IP address for the Domain Name Server (DNS) to be used for host-name to IP
address resolution.
DHCP Server/NAT Setting
The NXA-WAP250G includes a DHCP server that can assign IP addresses to any wireless device.
Addresses are assigned from a common address pool configured on the NXA-WAP250G. You can
configure the address pool by specifying start and end IP addresses.
NAT is a standard method of mapping multiple “internal” IP addresses to one “external” IP address on
devices at the edge of a network. For the NXA-WAP250G, the internal (local) IP addresses are the IP
addresses assigned to wireless clients by the DHCP server, and the external IP address is the IP address
assigned to the NXA-WAP250G itself. Note that the NXA-WAP250G IP address is always in a different
subnet from the DHCP server pool. The NXA-WAP250G uses the NAT IP settings to route traffic from
the wireless interface to the Ethernet network.
Click Next to proceed.
Step 3: Wireless VAP #1 Setting
The options on this page for VAP (Virtual Access Point) #1set the wireless Service Set Identifier (SSID)
and wireless security encryption key for the VAP#1 network (FIG. 11).
16
FIG. 11 Setup Wizard - Setting the VAP#1 SSID and Security
It is recommended to restrict one VAP network for only AMX Control Panels and let all other
wireless devices use the other VAP network or the second SSID.
VAP1 provides higher priority for wireless communications associated with this SSID,
relative to the second SSID (VAP2).
Enter the SSID, or wireless network name, which all wireless stations must use to associate with the
NXA-WAP250G. The SSID is case sensitive and can consist of up to 32 alphanumeric characters
(default: Wireless Network - 1).
The NXA-WAP250G offers two wireless security options;
Wired Equivalent Privacy (WEP)
Wi-Fi Protected Access Pre-shared Key (WPA-PSK)
Select the security you want to use and enter the appropriate encryption key (or select None for no
security).
WEP Key - Enter 10 hexadecimal digits (0 to 9 and A to F) or 5 alphanumeric characters for
64 bit keys, 26 hexadecimal digits or 13 alphanumeric characters for 128 bit keys, and 32
hexadecimal digits or 16 alphanumeric characters for 152 bit keys (FIG. 12).
NXA-WAP250G 802.11b/g Wireless Access Point
Initial Configuration
FIG. 12 Setup Wizard - Wireless VAP #1 Setting (WEP settings)
WPA-PSK Key — Enter as an easy-to-remember form of letters and numbers. The key must
be from 8 to 63 characters, which can include spaces (FIG. 13).
FIG. 13 Setup Wizard - Wireless VAP #1 Setting (WPA-PSK settings)
All wireless devices must be configured with the same WEP or WPA-PSK Key values
to communicate with the NXA-WAP250G.
Click Next to proceed.
NXA-WAP250G 802.11b/g Wireless Access Point
17
Initial Configuration
Step 4: Wireless VAP #2 Setting
The options on this page allow you to set the wireless Service Set Identifier (SSID) and wireless security
encryption key for the VAP#2 wireless network (FIG. 14).
FIG. 14 Setup Wizard - Wireless VAP #2 Setting
Wireless VAP #2 Setting is only available when the Operation Mode is set to AP (see
FIG. 6 on page 13).
Enter the SSID, or wireless network name, which all wireless stations must use to associate
with the NXA-WAP250G. The SSID is case sensitive and can consist of up to 32 alphanumeric
characters (Default: Wireless Network - 2).
Both SSIDs (VAP#1 and VAP#2) must use the same encryption method.
The NXA-WAP250G offers two wireless security options; Wired Equivalent Privacy (WEP) or
Wi-Fi Protected Access Pre-shared Key (WPA-PSK). Select the security you want to use and
enter the appropriate encryption key, or select “None” for no security.
WEP Key — Enter 10 hexadecimal digits (0 to 9 and A to F) or 5 alphanumeric characters for
64 bit keys, 26 hexadecimal digits or 13 alphanumeric characters for 128 bit keys, and 32
hexadecimal digits or 16 alphanumeric characters for 152 bit keys.
WPA-PSK Key — Enter as an easy-to-remember form of letters and numbers. The key must
be from 8 to 63 characters, which can include spaces.
All wireless devices must be configured with the same WEP or WPA-PSK Key values
to communicate with the NXA-WAP250G.
18
Click Next to proceed.
NXA-WAP250G 802.11b/g Wireless Access Point
Finish and Reboot
Click Finish (FIG. 15).
1.
FIG. 15 Setup Wizard - Wizard configuration done
Initial Configuration
2. Click the Reboot button to restart the NXA-WAP250G.
Rebooting of the NXA-WAP200G can take up to 90 seconds.
The NXA-WAP250G will start using any configured new IP settings, which must be
used to access the web management interface.
NXA-WAP250G 802.11b/g Wireless Access Point
19
Initial Configuration
20
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
The NXA-WAP250G’s basic settings can be configured using the Setup Wizard, as described in the
previous chapter, “Initial Configuration.” However, for some installations, you may need to configure
specific settings that are not available in the Setup Wizard. The Advanced Setup menu provides access to
all the unit’s settings for complete control of the WAP250G’s features.
To access the Advanced Setup menus, follow these steps:
1. Login to the web interface (see the Logging into the Web Interface section on page 12).
2. When the Home page opens, select Advanced Setup. The Welcome to AMX AP Advanced Setup
page displays (FIG. 16).
System Configuration
FIG. 16 Advanced Setup
The information in this chapter is organized to reflect the structure of the web management screens for
easy reference. However, it is recommended that you first configure a password to control access to the
management interface. For details, see the System Setting - Administration section on page 26.
The Advanced Setup pages include the options in the table below. For details on configuration for each
feature, see the corresponding page number.
Configuration Options
Menu Description Page
Information
System Displays a summary of WAP250G settings 23
Client Displays information on stations associated to the WAP250G 24
Network Displays DHCP client, server, NAT, and PPPoE settings 25
Event Log Displays the system message log 25
System
Administration Configures the password for management
Operation Sets the device function 27
VAP Management Manages the VAP’s traffic and priority 28
Reboot System Restarts the system and resets configuration settings to factory
defaults
access
26
28
NXA-WAP250G 802.11b/g Wireless Access Point
21
System Configuration
Configuration Options (Cont.)
Menu Description Page
Wireless VAP 1, 2 (Wireless VAP 2 is only available when the Operation Mode is set to AP)
Basic Enables the VAP interface and sets the SSID 29
Channel Sets the radio channel 30
WEP Configures WEP security 31
WPA-PSK Configures WPA-PSK security 33
Network
DHCP Client Enables DHCP client or manually sets an IP address 34
DHCP Server/NAT Enables DHCP server and configures NAT settings 35
PPPoE Configures PPPoE settings 36
Time & Log
SNTP Sets the system clock using SNTP 38
Update
Upgrade via the Web Page Upgrades system software from a local file 39
Upgrade via a Remote Server Upgrades system software from a file on an FTP or TFTP server 40
Information
The Information pages display details on the current configuration and status of the WAP250G,
including associated wireless stations and event log messages (FIG. 17).
FIG. 17
Information page
The items on the Information pages page are for status display only, and are not
configurable.
22
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
Information - System
The System Information page (FIG. 18) displays basic system configuration settings, as well as the
settings for each wireless interface.
FIG. 18 System Information
The items on this page include:
AP System Configuration: Displays basic system configuration settings:
System Up Time: Length of time since the WAP250G was powered on.
MAC Address: The physical layer address for the WAP250G’s Ethernet port.
IP Address: The IP address configured on the WAP250G.
IP Default Gateway: The IP address of the gateway router between the WAP250G and
management stations that exist on other network segments.
HTTP Server: The status of the web management server.
HTTP Server Port: The TCP port used by the web management server.
Version: The version number of the current WAP250G software.
Wireless Data #1/#2 SSID Configuration: The AP Wireless Configuration table displays the wireless
interface settings listed below.
SSID: The service set identifier for this wireless group.
Channel: The radio channel through which the WAP250G communicates with wireless
clients.
The encryption status: The key size used for data encryption.
Authentication Type: Shows if open system or shared key authentication is used.
NXA-WAP250G 802.11b/g Wireless Access Point
23
System Configuration
Multicast Cipher: The encryption used for broadcast and multicast data.
Information - Client
The Client page (FIG. 19) displays details on wireless devices currently associated to the WAP250G.
FIG. 19 Client Information
The items on this page include:
Station Address: The MAC address of the wireless client.
Authenticated: Shows if the client has been authenticated. The two basic methods of
authentication supported for 802.11 wireless networks are “open system” and “shared key.”
Open-system authentication accepts any client attempting to connect to the WAP250G
without verifying its identity. The shared-key approach uses Wired Equivalent Privacy (WEP)
to verify client identity by distributing a shared key to clients before attempting
authentication.
Associated: Shows if the client has been successfully associated with the WAP250G. Clients
can associate with the WAP250G only after authentication has completed.
Encryption: Indicates if encryption is being used by the client; either Enabled or Disabled.
Cipher: Indicates the encryption cipher capability being advertised by the client; WEP, TKIP,
AES, or None.
SSID -- The VAP interface that the client is associated with.
RSSI -- The received signal strength of the client.
24
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
Information - Network
The Network page displays the current Dynamic Host Configuration Protocol (DHCP) client, DHCP
server, and Point-to-Point Protocol over Ethernet (PPPoE) status (FIG. 20).
FIG. 20 Network Information
The items on this page include:
DHCP Client Setting: Enables the WAP250G to automatically obtain an IP address from a
DHCP server. When disabled, or if a response is not received from the DHCP server, the
WAP250G uses the configured static IP settings on the Network > DHCP Client page (default:
Disabled).
DHCP Server/NAT Setting: Enables or disables the DHCP server on the WAP250G. The
WAP250G DHCP server can assign IP addresses to any wireless client requesting the service.
Addresses are assigned to clients from a common address pool configured on the Network >
DHCP Server/NAT page (default: Disabled).
PPPoE Setting: Enables a connection to an Internet service provider using PPPoE. The
PPPoE access user name and password can be set on the Network > PPPoE page (default:
Disabled).
Information - Event Log
The Event Log page displays system messages generated during system operation. The logged messages
can serve as a valuable tool for isolating WAP250G and network problems (FIG. 21).
FIG. 21 Event Log
NXA-WAP250G 802.11b/g Wireless Access Point
25
System Configuration
The Event Log page displays the last 128 messages logged in chronological order, from the newest to the
oldest. Log messages saved in the WAP250G’s memory are erased when the device is rebooted.
System Setting
The System Settings pages allow you to change the management access password and restart the
WAP250G (FIG. 22).
FIG. 22 System Setting
System Setting - Administration
Management access to the WAP250G is controlled through a single password. Use the options on the
Administration Settings page (FIG. 23) to change the user name and password for web interface access.
To protect access to the management interface, you need to configure an Administrator password as soon
as possible. If the password is not configured, then anyone having access to the WAP250G may be able
to compromise WAP250G and network security.
FIG. 23 System Settings - Administration Settings
26
Pressing the reset button on the back of the WAP250G for more than five seconds
resets the user name and password to the factory defaults.
The items on this page include:
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
Username: The name of the user. The default username is “Admin” (case-sensitive) and is
configurable.
New Password: The password for management access. (Length: 0-32 characters, case
sensitive)
Confirm New Password: Enter the password again for verification.
System Setting - VLAN Status / Operation Mode
The options on this page allow you to enable/disable VLAN Status, and specify the Operation Mode. The
WAP250G can be set as an access point, a wireless repeater or a wireless bridge according to how you
want to use the unit in your network (FIG. 24).
FIG. 24 System Settings - Operation
VLAN Status: Click the Enable radio button to maintain VLAN (virtual LANs) on the WAP250G
(default: Disabled).
VLANs represent a method of creating independent logical networks within a physical network. Several
VLANs can co-exist within such a network. VLANs are commonly used to increase the number of
broadcast domains while reducing the size of each broadcast domain, which in turn reduces network
traffic and increases network security (both of which are hampered in cases of single large broadcast
domains).
Operation Modes:
There are two Operation Modes:
AP — Set the device as an Access Point. The device can also act as a root bridge in a wireless
bridge network.
Repeater & Bridge — Set the device as a Wireless Repeater and Bridge. The Root AP MAC
Address can be configured manually or selected after clicking Scan.
In Repeater & Bridge mode, the access point only connects to other NXA-WAP250G
units.
Reboot the WAP250G after completing the settings.
NXA-WAP250G 802.11b/g Wireless Access Point
27
System Configuration
System Setting - VAP Management
The VAP Management page allows you to enable VAP management (FIG. 25).
FIG. 25 System Settings - VAP Management
When VAP management is enabled, it tags traffic from VAP#1 as high priority and traffic from VAP#2 as
low priority.
This setting is only available when the Operation Mode is set to AP.
System Settings - Reset System
The Reset System page (FIG. 26) allows you to restart the WAP250G software and restore factory
default settings.
FIG. 26 System Settings - Reset System
The items on this page include:
Restore Factory Settings: Click the Restore button to reset the configuration settings for the
WAP250G to the factory defaults and reboot the system. Note that all user configured
information will be lost. You will have to use the default IP address to re-gain management
access to the WAP250G.
Reboot Access Point: Click the Reboot button to reboot the system.
28
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
If you have upgraded the system software, then you must reboot the WAP250G to
implement the new code.
Wireless VAP Settings
The Wireless VAP #1 Setting and Wireless VAP #2 Setting pages include configuration options for radio
signal characteristics and wireless security features on the WAP250G (FIG. 27).
FIG. 27 Wireless VAP 1 Setting - main page
VAP #1 is only available when the Operation Mode is set as an AP.
The following sections apply to both Wireless VAP #1 Setting and Wireless VAP #2 Setting pages.
it is recommended to restrict one VAP network for only AMX Control Panels and let
all other wireless stations use the other VAP network.
Wireless VAP Settings - Basic Setting
The Basic Setting page (FIG. 28) allows you to enable the VAP radio interface and define the Service Set
Identifier (SSID).
The WAP250G includes an IEEE 802.11g radio for wireless communications. The IEEE 802.11g
standard operates within the 2.4 GHz band at up to 54 Mbps. Note that because the IEEE 802.11g
standard is an extension of the IEEE 802.11b standard, it allows clients with 802.11b wireless network
cards to associate to an 802.11g access point.
The SSID is a recognizable text string that identifies the wireless network service provided by the VAP
interface. Wireless clients that want to connect to the network must set their SSIDs to match that of the
VAP interface.
The items on this page include:
Radio Status: Enables radio communications for the VAP interface.
(Defaults: VAP #1 - Enabled, VAP #2 - Disabled)
NXA-WAP250G 802.11b/g Wireless Access Point
29
System Configuration
FIG. 28 Wireless VAP 1 Setting - Basic Settings
SSID: The name of the wireless network service provided by the VAP. Clients that want to
connect to the network must set their SSID to the same as that of the VAP interface.
(Defaults: VAP #1 - AMX1, VAP #2 - AMX2; Range = 1-32 characters).
Broadcast SSID: Enable this option to allow the WAP250G to transmit it’s SSID at regular
intervals (every few seconds). This feature is intended to allow clients to dynamically discover
and roam between WLANs.
VLAN Id: Enter a unique 12-bit VLAN Id (or VID) for the WAP250G.
Client Access Mode: Select the access mode to be used by the WAP250G (80211g only, or
b+g). By default, the access mode is set to b+g.
Wireless VAP Settings - Channel Setting
The WAP250G uses one radio channel in the 2.4 GHz band to communicate with its clients. The radio
channel may be set manually by the user or automatically by the system, which selects the channel with
the least radio interference (FIG. 29).
FIG. 29 Wireless VAP 1 Setting - Channel Setting
If you experience poor performance, you may be encountering interference from
another wireless device. Try changing the channel, as this may eliminate interference
and increase performance. Channels 1, 6, and 11, as the three non-overlapping
channels in the 2.4 GHz band, are preferred. Using channels other than 1, 6, and 11
can cause degraded performance.
30
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
The items on this page include:
Auto Channel Selection: Enables the WAP250G to automatically select an interference-free
radio channel (default: Enabled).
Radio Channel: The radio channel that the WAP250G uses to communicate with wireless
clients. When multiple WAP250Gs are deployed in the same area, set the channel on
neighboring WAP250Gs at least five channels apart to avoid interference with each other.
For example, you can deploy up to three WAP250Gs in the same area using channels 1, 6,
11. Note that wireless clients automatically set the channel to the same as that used by the
WAP250G to which it is linked (range = 1-11; default = 11).
Wireless VAP Settings - WEP Setting
The WAP250G is configured by default as an “open system,” which broadcasts a beacon signal including
the configured SSID. Wireless clients with a configured SSID of “any” can read the SSID from the
beacon and automatically set their SSID to allow immediate connection to the WAP250G. To secure the
wireless network, you have to implement user authentication and wireless data encryption.
Wired Equivalent Privacy (WEP) provides a basic level of security, preventing unauthorized access to the
network and encrypting data transmitted between wireless clients and the WAP250G. WEP uses static
shared keys (fixed-length hexadecimal or alphanumeric strings) that are manually distributed to all
clients that want to use the network (FIG. 30).
FIG. 30 Wireless VAP 1 Setting - WEP Security
The items on this page include:
WEP Status: Enables the WAP250G to use WEP shared keys. If enabled, you must configure
at least one key for the VAP interface and all its clients.
Authentication Mode: Select Open or Shared.
With Authentication Mode set to Open, any bridge can authenticate and then attempt to
communicate with the WAP250G. If the WAP250G is using WEP and the other bridge is
not, the other bridge does not attempt to authenticate. If the other bridge is using WEP
but its WEP keys do not match the keys on the WAP250G, the other bridge authenticates
with the WAP250G but does not pass data through it.
With Authentication Mode set to Shared, the WAP250G sends an unencrypted challenge
string to any bridge attempting to communicate with the WAP250G. The bridge
NXA-WAP250G 802.11b/g Wireless Access Point
31
System Configuration
requesting authentication encrypts the challenge text and sends it back to the WAP250G.
If the challenge text is encrypted correctly, the access point enables the requesting bridge
to authenticate.
Shared authentication mode is less secure than Open due to the unencrypted / encrypted
string handshake.
Only one SSID can use Shared authentication.
Although an access point can use the EAP method to authenticate a wireless client
device, an access point cannot use EAP to authenticate another access point. In
other words, bridges must authenticate each other using either Open or Shared
authentication methods.
Key Source: Select Static config or Dynamic from Radius. Static config is for use with WEP,
Dynamic from Radius is for use with WPA.
Key Type: Select the preferred method of entering WEP encryption keys on the WAP250G.
Hexadecimal: Enter keys as hexadecimal digits (0 to 9 and A to F).
Alphanumeric: Enter keys as alphanumeric characters.
Setting Key: Sets WEP key values for one or two keys. At least one key must be specified.
Each WEP key has an index number. Index numbers 1 and 2 apply to VAP #1 interface and
numbers 3 and 4 apply to VAP #2 interface. The selected key is used for authentication and
encryption on the VAP interface.
Enter key values that match the key type and length settings. Select 64 Bit, 128 Bit, or
152 Bit key length. Note that the same size of encryption key must be supported on all
wireless clients. (Default: 64 Bit)
64 Bit: Enter keys as 5 alphanumeric characters or 10 hexadecimal digits.
128 Bit: Enter keys as 13 alphanumeric characters or 26 hexadecimal digits.
152 Bit: Enter keys as 16 alphanumeric characters or 32 hexadecimal digits.
WEP 152 is not supported on the MVP-8400 Touch Panel.
Key index and type must match that configured on all clients.
32
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
Wireless VAP Settings - WPA / WPA2 Setting
Wi-Fi Protected Access (WPA) employs a combination of technologies to provide an enhanced security
solution for wireless networks. The WPA Pre-shared Key (WPA-PSK) mode for small networks uses a
common password phrase that must be manually distributed to all clients that want to connect to the
network.
WPA2 is a further security enhancement that includes the now ratified IEEE 802.11i wireless security
standard. Both WPA and WPA2 provide very robust security through the support of the Advanced
Encryption Standard (AES) and Temporal Key Integrity Protocol (TKIP) encryption ciphers (FIG. 31).
FIG. 31 Wireless VAP 1 Setting - WPA-PSK Wireless Security
The computationally intensive operations of AES encryption requires hardware
support on client devices. Before implementing AES in the network, be sure that
wireless client hardware is AES or WPA2 compliant.
The items on this page include:
WPA/WPA2 Status: Enables WPA-PSK or WPA2-PSK security on the VAP interface. When
enabled, WEP clients are not supported. (default: Disabled).
Authentication: Select an authentication method. Supported methods include:
WPA-PSK, WPA2-PSK, WPA2-PSK Mix Mode
If you select WPA(2)-PSK, you must provide a Key (see WPA-PSK Key below).
WPA, WPA2, WPA-WPA2 Mix Mode
If you select WPA(2), you must configure the Radius server settings for WPA / WPA2
authentication (see the Network Settings - Radius Server Setting section on
page 37).
Key Cipher Mode: Selects the encryption cipher to use for multicast and unicast data traffic:
Auto: Uses TKIP for the multicast cipher and TKIP or AES for the unicast cipher
depending on the capability of associated clients.
AES: Uses AES keys for both multicast and unicast encryption.
TKIP: Uses TKIP keys for both multicast and unicast encryption.
NXA-WAP250G 802.11b/g Wireless Access Point
33
System Configuration
WPA-PSK Key: Enter a key as an easy-to-remember form of letters and numbers. The key
must be from 8 to 63 characters, which can include spaces. All wireless clients must be
configured with the same key to communicate with the VAP interface.
Network Settings
The WAP250G supports DHCP client, DHCP server and Network Address Translation (NAT). Point-toPoint Protocol over Ethernet (PPPoE) is also supported for users that have an IP address assigned
automatically from an Internet service provider (ISP) through an ADSL modem. Use the options on the
Network Settings pages to configure the LAN and WAN network settings (FIG. 32).
FIG. 32 Network Settings - main page
Network Settings - DHCP Client Setting
Configuring the WAP250G with an IP address enables you to manage the WAP250G from any PC in the
attached network. A number of WAP250G features depend on IP addressing to operate.
You can connect to the web browser interface to access IP addressing only if the
WAP250G already has an IP address that is reachable through your network.
By default, the WAP250G is configured with the IP address 192.168.1.240, with the DHCP client
disabled (FIG. 33).
34
FIG. 33 Network Settings - DHCP Client Settings
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
The items on this page include:
DHCP Client Setting: Enables the WAP250G to automatically obtain an IP address from a
DHCP server. If a response is not received from the DHCP server, the WAP250G uses the
fixed IP settings as configured on this page. When set to disabled, a static IP address can be
manually configured.
Static IP Address: The IP address of the WAP250G. Valid IP addresses consist of four
decimal numbers, 0 to 255, separated by periods.
Subnet Mask: The mask that identifies the host address bits used for routing to specific
subnets.
Default Gateway: The default gateway is the IP address of the router for the WAP250G,
which is used if the requested destination address is not on the local subnet. If you have
management stations located on another subnet, type the IP address of the default gateway
router in the text field provided. Otherwise, leave the address as all zeros (0.0.0.0).
DNS IP Address: The IP address of a Domain Name Server on the network. A DNS maps
numerical IP addresses to domain names and can be used to identify network hosts by familiar
names instead of the IP addresses.
If you have a DNS server located on the local network, type the IP address in the text
field provided. Otherwise, leave the address as all zeros (0.0.0.0).
Network Settings - DHCP Server/NAT Setting
The WAP250G includes a Dynamic Host Configuration Protocol (DHCP) server that can assign
temporary IP addresses to wireless clients requesting the service (FIG. 34).
FIG. 34 Network Settings - DHCP Server/NAT Settings
Addresses are assigned to clients from a common address pool configured on the WAP250G. Configure
an address pool by specifying start and end IP addresses. Be sure not to include the WAP250G's IP
address in the address pool range.
Network Address Translation (NAT) is a standard method of mapping multiple "internal" IP addresses to
one "external" IP address on devices at the edge of a network. For the WAP250G, the internal (local) IP
addresses are the IP addresses assigned to wireless clients by the DHCP server, and the external IP
address is the IP address assigned to the Ethernet port. When enabled, the WAP250G's wireless interface
uses the NAT IP settings to access the Ethernet network.
When the DHCP server is enabled, NAT is also enabled.
The items on this page include:
NXA-WAP250G 802.11b/g Wireless Access Point
35
System Configuration
DHCP Server/NAT Setting: Enables or disables the DHCP server and NAT on the
WAP250G. (Default: Enabled)
Start/End IP Address: Specifies the start/end IP address of a range that the DHCP server can
assign to DHCP clients. You can specify a single address or an address range.
Gateway: The IP address of the gateway router for the WAP250G, which is used if the
requested destination address is not on the local subnet.
DNS IP Address: The IP address of a Domain Name Server on the network. A DNS maps
numerical IP addresses to domain names and can be used to identify network hosts by familiar
names instead of the IP addresses.
Network Settings - PPPoE Setting
Many Internet service providers (ISPs) use the Point-to-Point Protocol over Ethernet (PPPoE) to
automatically assign an IP address to users with a DSL modem. The PPPoE page provides the settings
needed for this service (FIG. 35).
FIG. 35 Network Settings - PPPoE Settings
The items on this page include:
PPPoE Setting: Enables the WAP250G IP address to be assigned automatically from an
Internet service provider (ISP) through an ADSL modem using PPPoE.
Username: If your ISP has provided you with a PPPoE user name, enter it in the
corresponding text box.
Password: If your ISP has provided you with a PPPoE password, enter it in the corresponding
text box.
36
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
Network Settings - Radius Server Setting
Radius (Remote Authentication Dial In User Service) is an authentication, authorization and accounting
protocol for applications such as network access or IP mobility. It is intended to work in both local and
roaming situations. Use the options on the Radius Server Setting page to configure Radius server settings
for wireless clients (FIG. 36).
FIG. 36 Network Settings - Radius Server Settings
The items on this page include:
Server Name / IP Address: Enter the hostname or IP address of the Radius server that the
WAP250G will connect to.
Port Number: Enter the port number on the Radius server that will be used by the WAP250G.
New Secret Key: Enter the Secret Key of the Radius Server, this secret key helps establishing
the communication with the Radius server.
Confirm New Secret Key: Re-enter the Secret Key.
Group Key Update Interval (secs): Set the interval for Group Key Updates on the Radius
server, in one-second increments (default = 1800, or 3 minutes).
NXA-WAP250G 802.11b/g Wireless Access Point
37
System Configuration
Time and Log
Use the options on the Time Setting page (FIG. 37) to enable Simple Network Time Protocol (SNTP).
SNTP allows the WAP250G to set its internal clock based on periodic updates from a time server (SNTP
or NTP).
FIG. 37 Time Setting page
Maintaining an accurate time on the WAP250G enables all system log messages to be stamped with the
correct time and date. If the clock is not set, the WAP250G only records the time from the factory default
set at the last bootup.
The WAP250G acts as an SNTP client, which periodically sends time synchronization requests to a
specific time server. SNTP uses Coordinated Universal Time (or UTC, formerly Greenwich Mean Time,
or GMT) based on the time at the Earth’s prime meridian, zero degrees longitude. To display the time
corresponding to your local time, you must also indicate the number of hours your time zone is located
before or after UTC/GMT (FIG. 38).
38
FIG. 38 Time Setting - SNTP Settings
NXA-WAP250G 802.11b/g Wireless Access Point
System Configuration
The items on this page include:
SNTP Server Setting — Configures the WAP250G to operate as an SNTP client. When
enabled, the time server IP address must be specified.
Primary Server: The IP address of an SNTP or NTP time server that the WAP250G attempts
to poll for a time update.
Time Zone — Sets the number of hours your local time zone is located before or after UTC/
GMT. (Default: GMT+00)
Daylight Saving — The WAP250G provides a way to automatically adjust the system clock
for Daylight Savings Time changes. To use this feature you must define the month and date to
begin and to end the change from standard time. During this period the system clock is set
back by one hour.
Updating Firmware
You can upgrade new WAP250G software from a local file on the management workstation, or from an
FTP or TFTP server. Use the options on the Firmware Upgrade page to update the access point system
software (FIG. 39).
FIG. 39 Firmware Upgrade - main page
After upgrading to new software, you must reboot the WAP250G to implement the new code. Until a
reboot occurs, the WAP250G will continue to run the software it was using before the upgrade started.
Upgrade via the Web Page
The Local File page allows you to update the system software using HTTP to transfer a local file
(FIG. 40).
The items on this page include:
New Firmware File — Specifies the name of the code file on the local web management
station. You can use the Browse button to locate the image file locally on the management
station.
Start Upgrade — Starts the download process. Be sure to allow enough time for the
download to complete before rebooting the WAP250G.
NXA-WAP250G 802.11b/g Wireless Access Point
39
System Configuration
FIG. 40 Firmware Upgrade - Local File
Upgrade via a Remote Server
The Remote File page allows you to download a new software code file from a remote server to the
WAP250G using FTP or TFTP (FIG. 41).
40
FIG. 41 Firmware Upgrade - Remote File
When using an FTP or TFTP server, be sure to first obtain the IP address of the server and note the
correct file path where the WAP250G software is stored. If upgrading from an FTP server, also make
sure that you have a user account configured on the server with a user name and password.
The items on this page include:
Remote File — Specifies a software code file download from a remote FTP or TFTP server.
New firmware file — Specifies the name of the code file on the server. A path on the server
can be specified using “/” in the destination file name, providing the path already exists. Other
than to indicate a path, the file name must not contain any slashes (\ or /), the leading letter
cannot be a period (.), and the maximum length for file names on the FTP/TFTP server is 255
characters or 32 characters for files on the WAP250G. (Valid characters: A-Z, a-z, 0-9, “.”, “”, “_”)
IP Address — IP address or host name of the FTP or TFTP server.
Username — The user ID used for login to an FTP server.
Password — The password used for login to an FTP server.
NXA-WAP250G 802.11b/g Wireless Access Point
Start Upgrade — Starts the download process. Be sure to allow enough time for the
download to complete before rebooting the WAP250G.
When you have downloaded the software file, you must reboot the WAP250G to
implement the new code.
System Configuration
NXA-WAP250G 802.11b/g Wireless Access Point
41
System Configuration
42
NXA-WAP250G 802.11b/g Wireless Access Point
Appendix A: Troubleshooting
Overview
Check the following items before you contact local Technical Support.
1. If wireless clients cannot access the network, check the following:
Be sure the NXA-WAP250G and the wireless clients are configured with the same Service Set
ID (SSID).
If authentication or encryption are enabled, ensure that the wireless clients are properly
configured with the appropriate authentication or encryption keys.
2. If the NXA-WAP250G cannot be configured using a web browser:
Be sure to have configured the NXA-WAP250G with a valid IP address, subnet mask and
default gateway.
If you are connecting to the NXA-WAP250G through the wired Ethernet interface, check the
network cabling between the management station and the NXA-WAP250G. If you are
connecting to NXA-WAP250G from a wireless client, ensure that you have a valid connection
to the NXA-WAP250G.
3. If you forgot or lost the password:
Set the NXA-WAP250G to its default configuration by pressing the reset button on the back
panel for 5 seconds or more. Connect to the web management interface using the default IP
address 192.168.1.240. Then use the default user name “Admin” and the default password
“1988” to access the management interface.
4. If all other recovery measure fail, and the NXA-WAP250G is still not functioning properly, take any
of these steps:
Reset the NXA-WAP250G’s hardware using the web interface or through a power reset.
Reset the NXA-WAP250G to its default configuration by pressing the reset button on the back
panel for 5 seconds or more. Connect to the web management interface using the default IP
address 192.168.1.240, then use the default user name “Admin” and the default password
“1988.”
Appendix A: Troubleshooting
If Your WAP250G Is Stuck on the Emergent Recovery Screen
Step 1: Website for free TFTP Server
Connect to the internet and enter the following link in the Address Bar on your web browser.
1.
http://www.solarwinds.net/downloads/index.aspx
Scroll to the bottom of the page and click Download Free TFTP Server located at the bottom of
2.
the page (you will have to enter name, e-mail etc…).
Step 2: Choose Download site and Install TFTP Server
1.
Select any one of the three links that appear on the screen to begin download.
2. Click Run - to install software on your computer
3. Click Run again to begin the software install.
4. Select all of the defaults during the installation
NXA-WAP250G 802.11b/g Wireless Access Point
43
Appendix A: Troubleshooting
Step 3: Copy Firmware file
E-mail a copy of the firmware file ZZ-IMG.BIN (Firmware file 1.0.4.6) to the dealer.
1.
2. Copy the file into the C:\TFTP-ROOT directory
Step 4: Ethernet Connectivity
1.
Verify the Ethernet port is enabled and connect an Ethernet cable from the laptop to the WAP250G.
2. Highlight My Network Places; Right-click Properties, Highlight TCP/IP Settings and click
Properties.
3. Assign a static IP Address on the same network as the WAP250
4. Click OK.
5. Click OK.
6. Click Start/Run and type CMD.
7. Ping IP Address of the WAP250G to verify connectivity.
Step 5: Launch TFTP Server
Start\Run\Program
1.
2. Select Solarwinds Free Tools.
3. Select TFTP Server - the following window launches (FIG. 42):
44
FIG. 42 SolarWinds.NET TFTP Server dialog
4. The IP Address should reflect the same IP Address of your Ethernet port on your laptop and the
default directory (C:\TFTP-Root) is displayed on the bottom left.
Step 6: Change TFTP Server Settings
1.
Select File.
2. Select Configure.
3. Select the Security Tab and change selection to Transmit and Receive Files (FIG. 43).
4. Click OK.
NXA-WAP250G 802.11b/g Wireless Access Point
FIG. 43 TFTP Server Configuration dialog
Step 7: Re-Connect to WAP 250G
Appendix A: Troubleshooting
1.
Open a web browser and enter the IP Address for the WAP250G.
2. Follow the Emergent Recovery System on-screen prompts to begin the Firmware upload.
NXA-WAP250G 802.11b/g Wireless Access Point
45
Appendix A: Troubleshooting
46
NXA-WAP250G 802.11b/g Wireless Access Point
Glossary
NXA-WAP250G 802.11b/g Wireless Access Point
47
It’s Your World - Take Control™
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2007 AMX. All rights reserved. AMX and the AMX logo are registered trademarks of AMX. AMX reserves the right to alter specifications without notice at any time.
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5/07
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