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AT-S94
User Manual
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User Manual
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Allied Telesis AT-S94 User Manual

Management Software
AT-S94
◆
WEB User’s Guide
For use with the AT-8000S Series Stackable Fast Ethernet Switches
613-001364 Rev A
Copyright © 2010, Allied Telesis, Inc.
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc.
Allied Telesis and the Allied Telesis logo are trademarks of Allied Telesis, Incorporated. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners.
Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document without prior written notice. The information provided herein is subject to change without notice.
Table of Contents
Preface ................................................................................................................................... 8
Web Browser Interface User’s Guide Overview ..............................................................................9
Intended Audience........................................................................................................................... 9
Document Conventions ................................................................................................................. 10
Contacting Allied Telesis ............................................................................................................... 11
Chapter 1.Getting Started .................................................................................................. 13
Starting the Application.................................................................................................................. 13
Using the Web Browser Interface.................................................................................................. 14
Viewing the Device Representation .........................................................................................................14
User Interface Components.....................................................................................................................16
Using the Management Buttons ..............................................................................................................17
Adding, Modifying and Deleting Information ............................................................................................19
Saving Configurations..............................................................................................................................20
Logging Out ................................................................................................................................... 21
Resetting the Device ..................................................................................................................... 21
Configurable Login Banner............................................................................................................21
Chapter 2.Defining System Information ........................................................................... 23
Chapter 3.Configuring IPv6................................................................................................ 25
Defining IPv6 Interfaces...........................................................................................................................25
Defining the IPv6 Default Gateway..........................................................................................................29
Configuring Tunnels.................................................................................................................................31
Defining IPv6 Neighbors ..........................................................................................................................32
Chapter 4.Configuring System Time................................................................................. 37
Setting the System Clock.........................................................................................................................37
Configuring SNTP....................................................................................................................................38
Polling for Unicast Time Information ..................................................................................................38
Polling for Anycast Time Information..................................................................................................38
Broadcast Time Information ...............................................................................................................38
Configuring Daylight Saving Time ...........................................................................................................39
Daylight Savings Time by Country .....................................................................................................41
Chapter 5.Configuring Device Security ............................................................................ 43
Configuring Management Security ................................................................................................ 43
Defining Access Profiles ..........................................................................................................................43
Defining Profile Rules ..............................................................................................................................47
Defining Authentication Profiles...............................................................................................................51
Mapping Authentication Profiles ..............................................................................................................55
Configuring Server Based Authentication......................................................................................56
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide
Configuring TACACS+ ........................................................................................................................... 56
Configuring RADIUS ............................................................................................................................... 60
Configuring Local Users.......................................................................................................................... 64
Defining Line Passwords ........................................................................................................................ 66
Configuring Network Security........................................................................................................ 66
Managing Port Security........................................................................................................................... 67
Defining 802.1x Port Access................................................................................................................... 70
Enabling Storm Control........................................................................................................................... 75
Defining Access Control................................................................................................................ 77
Defining MAC Based ACL....................................................................................................................... 77
Defining IPv4 Based ACL ....................................................................................................................... 81
Defining IPv6 Based ACL ....................................................................................................................... 87
Defining ACL Binding.............................................................................................................................. 91
Chapter 6.Configuring DHCP Snooping ........................................................................... 93
Defining DHCP Snooping General Properties ........................................................................................ 94
Defining DHCP Snooping on VLANs ...................................................................................................... 95
Defining Trusted Interfaces..................................................................................................................... 96
Binding Addresses to the DHCP Snooping Database ............................................................................ 99
Chapter 7.Configuring Ports............................................................................................ 101
Setting Ports Configurations ....................................................................................................... 101
Defining Port Settings ........................................................................................................................... 101
Configuring Port Mirroring..................................................................................................................... 105
Aggregating Ports ....................................................................................................................... 107
Defining Trunk Settings......................................................................................................................... 108
Defining Port Trunking .......................................................................................................................... 111
Configuring LACP ................................................................................................................................. 113
Chapter 8.Configuring Interfaces.................................................................................... 115
Defining MAC Addresses...................................................................................................................... 115
Configuring VLANs...................................................................................................................... 118
Defining VLAN Properties ..................................................................................................................... 119
Defining VLAN Interface Settings ......................................................................................................... 122
Defining GVRP...................................................................................................................................... 124
Defining MAC Based Groups ...................................................................................................... 126
Chapter 9.Configuring System Logs............................................................................... 129
Defining Log Settings............................................................................................................................ 129
Adding Log Servers......................................................................................................................... 130
Modifying Log Servers .................................................................................................................... 132
Viewing Temporary and Flash Logs ..................................................................................................... 132
Chapter 10.Configuring Spanning Tree.......................................................................... 135
Configuring Classic Spanning Tree............................................................................................. 135
Defining STP Properties ....................................................................................................................... 136
Defining STP Interfaces ........................................................................................................................ 138
Configuring Rapid Spanning Tree............................................................................................... 140
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Configuring Multiple Spanning Tree ............................................................................................ 143
Defining MSTP Properties .....................................................................................................................143
Defining MSTP Interfaces......................................................................................................................144
Defining MSTP Instance Mappings .......................................................................................................148
Defining MSTP Instance Settings ..........................................................................................................149
Chapter 11.Configuring Multicast Forwarding............................................................... 151
Configuring IGMP Snooping ..................................................................................................................152
Defining Multicast Bridging Groups .......................................................................................................154
Defining Multicast Forward All Settings .................................................................................................157
Defining Unregistered Multicast Settings...............................................................................................159
Chapter 12.Configuring SNMP......................................................................................... 161
Enabling SNMP .....................................................................................................................................162
Defining SNMP Communities ................................................................................................................163
SNMP Communities Basic Table .....................................................................................................163
SNMP Communities Advanced Table ..............................................................................................164
Defining SNMP Groups .........................................................................................................................167
Defining SNMP Users............................................................................................................................170
Defining SNMP Views............................................................................................................................173
Defining Notification Recipients .............................................................................................................175
SNMPv1,2c Notification Recipient....................................................................................................176
SNMPv3 Notification Recipient ........................................................................................................176
Defining Notification Filters ....................................................................................................................179
Chapter 13.Configuring LLDP.......................................................................................... 181
Defining Global LLDP Properties...........................................................................................................182
Defining LLDP Port Settings ..................................................................................................................183
Defining LLDP Media Endpoint Discovery Network Policy ....................................................................185
Defining LLDP MED Port Settings .........................................................................................................188
Viewing the LLDP Neighbors Information ..............................................................................................190
Chapter 14.Configuring Power Over Ethernet ............................................................... 193
Defining Power Over Ethernet Configuration.........................................................................................196
Section 15.Configuring Services..................................................................................... 199
Enabling Class of Service (CoS) ...........................................................................................................200
Configuring CoS Queueing and Scheduling..........................................................................................202
Mapping CoS Values to Queues ...........................................................................................................203
Mapping DSCP Values to Queues ........................................................................................................204
Configuring QoS Bandwidth ..................................................................................................................205
Chapter 16.System Utilities.............................................................................................. 207
Restoring the Default Configuration.......................................................................................................208
Defining TFTP File Uploads and Downloads .........................................................................................209
Viewing Integrated Cable Tests .............................................................................................................212
Viewing Optical Transceivers ................................................................................................................214
Resetting the Device..............................................................................................................................215
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Chapter 17.Viewing Statistics.......................................................................................... 217
Viewing Device Statistics ............................................................................................................ 217
Viewing Interface Statistics ................................................................................................................... 217
Viewing Etherlike Statistics ................................................................................................................... 219
Managing RMON Statistics ......................................................................................................... 220
Viewing RMON Statistics ...................................................................................................................... 220
Configuring RMON History ................................................................................................................... 223
Viewing the RMON History Table.................................................................................................... 225
Configuring RMON Events.................................................................................................................... 227
Viewing the RMON Events Logs........................................................................................................... 228
Defining RMON Alarms......................................................................................................................... 230
Chapter 18.Managing Stacking........................................................................................ 233
Stacking Overview ...................................................................................................................... 233
Stacking Ring Topology ........................................................................................................................ 233
Stacking Chain Topology ...................................................................................................................... 234
Stacking Members and Unit ID ............................................................................................................. 234
Removing and Replacing Stacking Members ....................................................................................... 234
Exchanging Stacking Members ............................................................................................................ 235
Configuring Stacking Management ............................................................................................. 235
Downloading Software with the CLI................................................................. 237
Connecting a Terminal ............................................................................................................. 237
Initial Configuration................................................................................................................... 238
Downloading Software.............................................................................................................. 239
System Defaults .............................................................................................. 244
RS-232 Port Settings................................................................................................................ 245
Port Defaults............................................................................................................................. 245
Configuration Defaults .............................................................................................................. 246
Security Defaults ...................................................................................................................... 246
Jumbo Frame Defaults ............................................................................................................. 246
System Time Defaults .............................................................................................................. 246
Spanning Tree Defaults............................................................................................................ 247
Address Table Defaults ............................................................................................................ 247
VLAN Defaults .......................................................................................................................... 247
Trunking Defaults ..................................................................................................................... 248
Multicast Defaults ..................................................................................................................... 248
QoS Defaults ............................................................................................................................ 248
Index................................................................................................................................... 249
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide

Preface

This guide contains instructions on how to configure an AT-8000S Series Layer 2 Fast Ethernet Switch using the interface in the Embedded Management System (EWS).
The Embedded Management System enables configuring, monitoring, and troubleshooting of network devices remotely via a web browser. The web pages are easy-to-use and easy-to-navigate.
This preface provides an overview of the Web Browser Interface User’s Guide, and includes the following sections:
• Web Browser Interface User’s Guide Overview
• Intended Audience
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Preface

Web Browser Interface User’s Guide Overview

Web Browser Interface User’s Guide Overview
The Web Browser Interface User’s Guide provides the following sections:
• Section 1,Section Title“Getting Started” — Provides information for using the Embedded Web
Management System, including adding, editing, and deleting configurations.
• Section 2, Section Title“Defining System Information” — Provides information for defining basic device
information.
• Section 3, Section Title“Configuring IPv6” — Provides information for configuring IPv6.
• Section 4, Section Title“Configuring System Time” — Provides information for configuring Daylight
Savings Time and Simple Network Time Protocol (SNTP).
• Section 5, Section Title“Configuring Device Security” — Provides information for configuring both system
and network security, including traffic control, and switch access methods.
• Section 6, Section Title“Configuring DHCP Snooping”— Provides information for configuring DCHP
Snooping.
• Section 7, Section Title“Configuring Ports” — Provides information for configuring ports, port
aggregation, port mirroring and LACP.
• Section 8, Section Title“Configuring Interfaces” — Provides information for defining ports, LAGs, and
VLANs.
• Section 9, Section Title“Configuring System Logs” — Provides information for setting up and viewing
system logs, and configuring switch log servers.
• Section 10, Section Title“Configuring Spanning Tree” — Provides information for configuring Classic,
Rapid, and Multiple Spanning Tree.
• Section 11, Section Title“Configuring Multicast Forwarding” — Provides information for configuring both
the static and dynamic forwarding databases.
• Section 12, Section Title“Configuring SNMP” — Provides information for configuring SNMP access and
management.
• Section 13, Section Title“Configuring Power Over Ethernet” — Provides information for configuring
Power over Ethernet (PoE) on the device.
• Section 14, Section Title“Configuring Services” — Provides information for configuring Quality of Service
CoS parameters.
• Section 15, Section Title“System Utilities” — Provides information for managing system files.
• Section 16, Section Title“Viewing Statistics” — Provides information about viewing device statistics,
including Remote Monitoring On Network (RMON) statistics, and device history events.
• Section 17, Section Title“Managing Stacking” — Provides information for stacking, including a stacking
overview.
• Appendix A, Appendix Title“Downloading Software with the CLI” — Provides information for
downloading device software through the command line interface.
• Appendix B, Appendix Title“System Defaults”— Provides the device defaults.

Intended Audience

This guide is intended for network administrators familiar with IT concepts and terminology.
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Allied Telesis
Note
Caution
Warning
AT-S94 Management Software Web Browser Interface User’s Guide

Document Conventions

This document uses the following conventions:
Provides related information or information of special importance.
Indicates potential damage to hardware or software, or loss of data.
Indicates a risk of personal injury.
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Contacting Allied Telesis

Contacting Allied Telesis
This section provides Allied Telesis contact information for technical support as well as sales information.
Preface
New Management Software Releases
Online Support
Email and Telephone Support
Returning Products
For Sales Information
New releases of management software are on the Allied Telesis web site. In addition, the installation and user guides are available for all Allied Telesis products in portable document format (PDF) on our web site. Both the management software and the product documentation are available at www.alliedtelesis.com/support/software/.
Once you access the web site, enter the hardware product model in the Search by Product Name field; for example, enter AT-8000S/24. Then click Find. You can download the management software. In addition, you can view the documents online or download them onto your local workstation or server.
You can request technical support online by accessing the Allied Telesis Knowledge Base: www.alliedtelesis.com/support/kb.aspx. You can use the Knowledge Base to submit questions to our technical support staff and review answers to previously asked questions.
For Technical Support via email or telephone, refer to the Support section of the Allied Telesis web site: www.alliedtelesis.com/support.
Products for return or repair must first be assigned a return materials authorization (RMA) number. A product sent to Allied Telesis without an RMA number will be returned to the sender at the sender’s expense. For instructions on how to obtain an RMA number, go to the Support section on our web site at www.alliedtelesis.com/support/rma.aspx.
You can find the contact information for Allied Telesis sales offices or valued resellers
listed on our web site at www.alliedtelesis.com/purchase. To purchase Allied Telesis products directly, contact one of our sales representatives or one of our valued resellers.
Warranty
Go to www.alliedtelesis.com/support/warranty for the specific terms and conditions of the warranty and for warranty registration for the AT-8000S Series Stackable Ethernet Switches.
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Getting Started

Starting the Application

Chapter 1. Getting Started

This section provides an introduction to the Web Browser Interface, and includes the following topics:
• Starting the Application
• User Interface Components
• Logging Out
• Resetting the Device
• Configurable Login Banner
Starting the Application
This section contains information for starting the application. The login information is configured with a default user name and password. The default password is friend; the default user name is manager. Passwords are both case sensitive and alphanumeric. Additional user names can be added.
To open the application:
1. Open a web browser.
2. Enter the device IP address in the address bar and press <Enter>. The Embedded Web System Login Page opens:
Figure 1: Embedded Web System Login Page
3. Enter manager in the User Name field.
4. Enter friend in the Password field.
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide
5. Click Sign In. The System General Page opens:
Figure 2: System General Page

Using the Web Browser Interface

This section provides general information about the interface, and describes the following topics:
• Viewing the Device Representation
• User Interface Components
• Using the Management Buttons
• Adding, Modifying and Deleting Information

Viewing the Device Representation

Zoom Views provide a graphical representation of the device ports. The Port Settings Page displays an example of the Zoom View with a detailed graphical representation of the device ports.
To open a zoom view of device ports:
• Click Layer 1 > Port Settings. The Port Settings Page opens:
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Figure 3: Port Settings Page
Getting Started
Using the Web Browser Interface
The port status indicators vary with context, for example the general port status indicators are as in the figure above while port mirror indicators are different. Indicator legend descriptions are provided with each context of the specific Zoom View.
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide

User Interface Components

The System General Page example shows the interface components.
Figure 4: System General Page
The following table lists the interface components with their corresponding numbers:
Table 1: Interface Components
Component Description
1 Menu The Menu provides easy navigation through the main management software
features. In addition, the Menu provides general navigation options.
2 Tabs Provide navigation to configurable device sub-features.
3 Management Buttons Enable configuring parameters and navigation to other pages, see Using the
Management Buttons.
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Getting Started
Using the Web Browser Interface

Using the Management Buttons

Management buttons provide an easy method of configuring device information, and include the following:
Table 2: Configuration Management Buttons
Button Button Name Description
Add Opens a page which creates new configuration entries.
Create Opens a page which creates new configuration entries.
Modify Modifies the configuration settings. The configuration change is
saved to the Running Configuration file and is maintained until reset or power-up.
Apply Saves configuration changes to the device. The configuration
change is saved to the Running Configuration file and is maintained until reset or power-up.
Configure Opens a page which creates or modifies configuration entries.
Delete Deletes the selected table and configuration entries.
View Displays detailed information for the current page/configuration.
Refresh Refreshes information displayed on the current page.
Reset Device reset. Resets the device information for all device
parameters according to current configuration.
Defaults Configuration reset. Resets the information for all parameters in
the current context (page/tab) to predefined defaults.
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide
Table 2: Configuration Management Buttons
Button Button Name Description
Test Performs a diagnostic test.
Clear All Counters Removes all counters.
The application menu includes the following general purpose buttons:
Configuration Opens the default configuration page (System General).
Login Signs the user into the WBI, starts the management session.
Logout Signs the user out of the WBI, ending the management session.
Help Opens the online help page.
Exit Help Closes the online help page.
Save Config Used when configuration changes to the device need to be saved
as permanent. The configuration is saved as permanent by copying the current Running Configuration file to the Startup Configuration file.
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Getting Started
Using the Web Browser Interface

Adding, Modifying and Deleting Information

The WBI contains and tables for configuring devices. User-defined information can be added, modified or deleted in specific WBI pages.
To add information to tables or WBI pages:
1. Open a WBI page.
2. Click Add. An Add page opens, for example, the Add Community Page:
Figure 5: Add Community Page
3. Define the fields.
4. Click Apply. The configuration information is saved, and the device is updated.
To modify information in tables or WBI pages:
1. Open a WBI page.
2. Select a table entry.
3. Click Modify. A Modify (or Settings) page opens, for example, the Local User Settings Page:
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide
Figure 6: Local User Settings Page
4. Define the fields.
5. Click Apply. The fields are modified, and the information is saved to the device. To delete information in tables or WBI pages:
1. Open the WBI page.
2. Select a table row.
3. Click Delete. The information is deleted, and the device is updated.

Saving Configurations

User-defined information can be saved for permanent use or until next update, not just for the current session. A configuration is saved as permanent by copying the current Running Configuration file to the Startup Configuration file.
To save changes permanently:
• Click Save Config on the menu.
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Getting Started
Note

Logging Out

Logging Out
The Logout option enables the user to log out of the device thereby terminating the running session.
To log out:
• In any page, click Logout on the menu. The current management session is ended and the Log Off Page
opens:
Figure 7: Log Off Page

Resetting the Device

The Reset option enables resetting the device from a remote location.
Save all changes to the Running Configuration file before resetting the device. This prevents the current device configuration from being lost. See also "System Utilities".
To reset the device:
1. In the System General Page, click Reset. You are prompted to confirm.
2. Click OK. The device is reset. Resetting the device ends the web browser management session. You must restart the session to continue managing the device. After the device is reset, a prompt for a user name and password displays.
3. Enter a user name and password to reconnect to the Web Interface.
To reset the device to the predefined default configuration:
• In the System General Page, click Defaults. The default settings are restored and the device is reset.

Configurable Login Banner

The system supports a text based banner that is configurable only via a CLI command to enable the telnet session to display security messages above the login prompt prior to login.
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide
To compose a login banner:
• Enter the CLI command login_banner "text string". The text string length is a maximum of 159 characters
(surrounded by quotes).
To remove the login banner:
• Enter the CLI command login_banner "" with an empty string.
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Defining System Information

Chapter 2. Defining System Information

The System General Page contains general device information, including system name and its IPv4 addressing, administrator and passwords information, Dynamic Host Configuration Protocol (DHCP) configuration and MAC Address Aging Time.
To define the general system information:
1. Click System > General. The System General Page opens:
Figure 8: System General Page
The System General PageSystem General PageSystem General Page comprises two sections: Administration and DHCP Configuration.
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Note
AT-S94 Management Software Web Browser Interface User’s Guide
The Administration section of theSystem General PageSystem General PageSystem General Page System General Page contains the following fields:
• System Name — Indicates the user-defined name of the device. This is a required field.
The field range is 0-159 characters.
• Administrator — Indicates the name of the administrator responsible for managing the device. The field
range is 0-159 characters.
• Comments — (Optional) The user can add any comments about the device in this field, for example, fill in
the location of the device.
• IPv4 Address — Indicates the device’s IPv4 address.
• Subnet Mask — Indicates the device’s subnet mask.
• Default Gateway — The IP address of a router for remote management of the device. The address must be
entered in the format: xxx.xxx.xxx.xxx. The default value is 0.0.0.0.
Packets are forwarded to the default IP when frames are sent to a remote network via the default gateway. The configured IP address must belong to the same subnet as one of the IP interfaces.
The DHCP Configuration section of theSystem General Page System General Page contains the following fields:
• DHCP Configuration — Indicates if the Dynamic Host Configuration Protocol (DHCP) is enabled. – Enable — DHCP dynamically assigns IP addresses to devices on a network. With dynamic addressing,
a device can have a different IP address every time it connects to the network. If the DHCP client software is activated, the device immediately begins to query the network for a DHCP server. The device continues to query the network for its IP configuration until it receives a response. If the device and IP address are manually assigned, that address is deleted and replaced by the IP address received from the DHCP server.
– Disable — Disables DHCP on the device. In this case, the device, following reset, checks if the IP
address is already defined in the Startup Configuration. If not, the device tries to receive an IP address from a BootIP server until either an IP address is received or the user defines the IP address manually.
• MAC Address Aging Time — The time interval an inactive dynamic MAC address can remain in the MAC
address table before it is deleted. The default time is 300 seconds, and the range is 10-630.
2. Define the relevant fields.
3. Click Apply. The system general information is defined and the device is updated.
4. Click Save Config on the menu to save the changes permanently.
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Configuring IPv6

Chapter 3. Configuring IPv6

The device functions as an IPv6 compliant Host, as well as an IPv4 Host (also known as dual stack). This allows device operation in a pure IPv6 network as well as in a combined IPv4/IPv6 network.
The primary change from IPv4 to IPv6 is the length of network addresses. IPv6 addresses are 128 bits long, whereas IPv4 addresses are 32 bits; allowing a much larger address space.
This section contains information on configuring the Internet Protocol Version 6 (IPv6) of the device.
IPv6 Syntax
The 128-bit IPv6 address format is divided into eight groups of four hexadecimal digits. Abbreviation of this format is done by replacing a group of zeros with double colons. The IPv6 address representation can be further simplified by suppressing the leading zeros.
IPv6 Prefixes
While Unicast IPv6 addresses written with their prefix lengths are permitted, in practice their prefix lengths are always 64 bits and therefore are not required to be expressed. Any prefix that is less than 64 bits is a route or address range that is summarizing a portion of the IPv6 address space.
For every assignment of an IP address to an interface, the system runs the Duplicate Address Detection algorithm to ensure uniqueness.
An intermediary transition mechanism is required for IPv6-only nodes to communicate with IPv6 nodes over an IPv4 infrastructure. The tunneling mechanism implemented is the Intra-Site Automatic Tunnel Addressing Protocol (ISATAP). This protocol treats the IPv4 network as a virtual IPv6 local-link, with each IPv4 address mapped to a Link Local IPv6 address.
This section describes the following topics:
• Defining IPv6 Interfaces
• Defining the IPv6 Default Gateway
• Configuring Tunnels
• Defining IPv6 Neighbors

Defining IPv6 Interfaces

The IPv6 Interface Page provides parameters for defining an IPv6 interface. When an interface is selected on a locally connected device, the system creates an IP interface and automatically configures a Link Local address on the interface. The automatically generated Link Local IPv6 address cannot be removed.
In addition to the dynamically configured IPv6 interfaces, there are two types of static IP addresses that can be configured on an IPv6 interface:
• Link Local Address — Defines a Link Local address that is non-routable and used for communication on the
same network only.
• Global Addresses — Defines a globally unique IPv6 address; visible and reachable from different subnets.
To define IPv6 Interfaces:
1. Click System > IPv6 Interface. The IPv6 Interface Page opens.
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide
Figure 9: IPv6 Interface Page
The IPv6 Interface Page contains the following fields:
• Interface — Indicates the interface on which the IPv6 interface is defined. The possible field values are: – VLAN — Indicates the VLAN ID on which IPv6 is enabled. – Tunnel1 — Indicates the IPv6 tunnel on which IPv6 is enabled.
• DAD Attempts — Defines the number of consecutive neighbor solicitation messages that are sent on an
interface while DAD is performed on Unicast IPv6 addresses on this interface. New addresses remain in a tentative state while duplicate address detection is performed. The range is 0 - 600. A field value of 0, disables duplicate address detection processing on the specified interface. A field value of 1 is the default.
The IPv6 Table on the IPv6 Interface Page displays the IPv6 addresses defined on the Interface. This table contains the following fields:
• Delete Button — Deletes the selected IPv6 address. Entries that cannot be removed because they are
generated automatically by the system are unavailable. Only addresses configured by a user can be removed. The possible field values are:
– Selected — Removes the selected IPv6 address. – Cleared — Maintains the IPv6 address.
• IPv6 Type — Defines the type of configurable IPv6 IP address for the interface. The possible values are: – Link Local — Defines a Link Local address; non routable and can be used for communication on the
same network only. A Link Local address has a prefix of 'FE80'.
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Configuring IPv6
– Global — Defines a globally unique IPv6 address; visible and reachable from different subnets.
• IPv6 Address — Indicates the IPv6 address assigned to the interface.
• Prefix — Specifies the length of the IPv6 prefix. The length is a decimal value that indicates how many of the
high-order contiguous bits of the address comprise the prefix (the network portion of the address). The range is 3 -128 (64 in the case EUI-64 parameter is used). The Prefix field is applicable only on a static IPv6 address defined as a Global IPv6 address.
• DAD Status — Displays the DAD Status which is the process of verifying and assuring an inserted IPv6
address is unique. This is a read-only parameter with the following field values:
– Tentative — Indicates the system is in process of IPv6 address duplication verification. – Duplicate — Indicates the IPv6 address is being used by another host on the network. The duplicated
IPv6 address is suspended and is not used for sending or receiving any traffic.
– Active — Indicates the IPv6 address is set to active.
2. Select an Interface.
3. Define the DAD Attempts for an existing interface. DAD Attempts are disabled for Tunnel interface. The
range is 0 - 600.
4. Click Apply. The DAD Attempts are defined, and device is updated.
Adding Multiple IPv6 Addresses
The Add IPv6 Address Page allows the user to add multiple IPv6 addresses to an existing IPv6 interface.
1. Click Add. The Add IPv6 Address Page opens.
Figure 10: Add IPv6 Address Page
In addition to the fields in the Add IPv6 Address Page, the Add IPv6 Address Page contains the following field:
• EUI-64 — Indicates the interface ID (low-order 64 bits of the IPv6 address) is built from the system base MAC
address. The following fields options are:
– Checked — Enables the EUI-64 option. This option is relevant only to Global IPv6 addresses. – Unchecked — Disables the EUI-64 option. This is the default value.
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide
2. Select an Interface to map to the IP address.
3. Select an IPv6 Address Type.
4. Define the IPv6 address. Selecting a Global in the IPv6 Address Type requires defining the Prefix Length or selecting the EUI-64 check box.
5. Click Apply. The IPv6 address is mapped to the Interface, and the device is updated.
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Configuring IPv6

Defining the IPv6 Default Gateway

The IPv6 Default Gateway Page enables you to configure the IPv6 address of the next hop that can be used to reach the network. Two IPv6 Link-Local address formats are used: standard and one with a specified IPv6 interface identifier. For IPv6, the configuration of the default gateway is not mandatory, as hosts can automatically learn of the existence of a router on the local network via the router advertisement procedure.
Unlike IPv4, the IPv6 default gateway can have multiple IPv6 addresses, which may include only one user-defined static address and multiple dynamic addresses that are learned via router advertised message provided in the IPv6 Default Gateway configuration. The user-defined default gateway has a higher precedence over automatically advertised addresses. It should be noted that configuring a new static default gateway without deleting the previously configured one overwrites the previous configuration.
• When removing an IP interface, all of its default gateway IP addresses are removed.
• An Alert message appears when attempting to insert a global IPv6 address.
• An Alert message appears when attempting to insert more than one user-defined address.
To define an IPv6 Preferred Router:
1. Click System > IPv6 Default Gateway. The IPv6 Default Gateway Page opens.
Figure 11: IPv6 Default Gateway Page
The IPv6 Default Gateway Page contains the following fields:
• The radio button is selected to delete/add/modify an entry.
• Default Gateway IPv6 Address — Displays the Link Local IPv6 address of the default gateway.
• Interface — Specifies the outgoing IPv6 interface through which the default gateway can be reached.
• Typ e — Specifies the means by which the default gateway was configured. The possible field values are:
– Static — Indicates the default gateway is user-defined.
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Allied Telesis AT-S94 Management Software Web Browser Interface User’s Guide
Dynamic — Indicates the default gateway is dynamically configured.
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• State — Displays the default gateway status. The following states are available: Incomplete, Reachable,
Stale, Delay, Probe and Unreachable.
2. Select an Interface.
3. Click Add. The Add Static Default Gateway Page opens.
Figure 12: Add Static Default Gateway Page
4. Define the Default Gateway IPv6 Address field for the IP Interface. The address must be a valid IPv6 address, specified in hexadecimal using 16-bit values between colons. An example of an IPv6 address is 2031:0:130F:0:0:9C0:876A:130D and the compressed version is represented as 2031:0:130F::9C0:876A:130D.
5. Click Apply. The default gateway is defined, and the device is updated.
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