User Guide
Table Of Contents
- Nortel WLAN Security Switch 2300 Series Configuration Guide
- Contents
- How to get Help
- Introducing the Nortel WLAN 2300 System
- Using the Command-Line Interface
- Configuring AAA for Administrative and Local Access
- Configuring and Managing Ports and VLANs
- Configuring and Managing Ports
- Configuring and Managing VLANs
- Managing the Layer 2 Forwarding Database
- Port and VLAN Configuration Scenario
- Configuring and Managing IP Interfaces and Services
- MTU Support
- Configuring and Managing IP Interfaces
- Configuring the System IP Address
- Configuring and Managing IP Routes
- Managing the Management Services
- Configuring and Managing DNS
- Configuring and Managing Aliases
- Configuring and Managing Time Parameters
- Setting the Time Zone
- Configuring the Summertime Period
- Statically Configuring the System Time and Date
- Displaying the Time and Date
- Configuring and Managing NTP
- Adding an NTP Server
- Removing an NTP Server
- Changing the NTP Update Interval
- Resetting the Update Interval to the Default
- Enabling the NTP Client
- Displaying NTP Information
- Managing the ARP Table
- Pinging Another Device
- Logging In to a Remote Device
- Tracing a Route
- IP Interfaces and Services Configuration Scenario
- Configuring SNMP
- Overview
- Configuring SNMP
- Displaying SNMP Information
- Configuring and Managing Mobility Domain Roaming
- Configuring User Encryption
- Configuring AP access points
- AP Overview
- Configuring AP access points
- Specifying the Country of Operation
- Configuring a Template for Automatic AP Configuration
- Configuring AP Port Parameters
- Configuring AP-WSS Security
- Configuring a Service Profile
- Configuring a Radio Profile
- Configuring Radio-Specific Parameters
- Mapping the Radio Profile to Service Profiles
- Assigning a Radio Profile and Enabling Radios
- Disabling or Reenabling Radios
- Displaying AP Information
- Displaying AP Configuration Information
- Displaying a List of Distributed APs
- Displaying a List of Distributed APs that Are Not Configured
- Displaying Connection Information for Distributed APs
- Displaying Service Profile Information
- Displaying Radio Profile Information
- Displaying AP Status Information
- Displaying AP Statistics Counters
- Configuring RF Auto-Tuning
- Wi-Fi Multimedia
- Configuring and Managing Spanning Tree Protocol
- Configuring and Managing IGMP Snooping
- Configuring and Managing Security ACLs
- About Security Access Control Lists
- Creating and Committing a Security ACL
- Mapping Security ACLs
- Modifying a Security ACL
- Using ACLs to Change CoS
- Enabling Prioritization for Legacy Voice over IP
- Security ACL Configuration Scenario
- Managing Keys and Certificates
- Why Use Keys and Certificates?
- About Keys and Certificates
- Creating Keys and Certificates
- Choosing the Appropriate Certificate Installation Method for Your Network
- Creating Public-Private Key Pairs
- Generating Self-Signed Certificates
- Installing a Key Pair and Certificate from a PKCS #12 Object File
- Creating a CSR and Installing a Certificate from a PKCS #7 Object File
- Installing a CA’s Own Certificate
- Displaying Certificate and Key Information
- Key and Certificate Configuration Scenarios
- Configuring AAA for Network Users
- About AAA for Network Users
- AAA Tools for Network Users
- Configuring 802.1X Authentication
- Configuring Authentication and Authorization by MAC Address
- Configuring Web-based AAA
- Configuring Last-Resort Access
- Configuring AAA for Users of Third-Party APs
- Assigning Authorization Attributes
- Overriding or Adding Attributes Locally with a Location Policy
- Configuring Accounting for Wireless Network Users
- Displaying the AAA Configuration
- Avoiding AAA Problems in Configuration Order
- Configuring a Mobility Profile
- Network User Configuration Scenarios
- Configuring Communication with RADIUS
- Managing 802.1X on the WSS Switch
- Managing Sessions
- Managing System Files
- Rogue Detection and Countermeasures
- About Rogues and RF Detection
- Summary of Rogue Detection Features
- Configuring Rogue Detection Lists
- Enabling Countermeasures
- Disabling or Reenabling Active Scan
- Enabling AP Signatures
- Disabling or Reenabling Logging of Rogues
- Enabling Rogue and Countermeasures Notifications
- IDS and DoS Alerts
- Displaying RF Detection Information
- Appendix A: Troubleshooting a WS Switch
- Fixing Common WSS Setup Problems
- Recovering the System Password
- Configuring and Managing the System Log
- Running Traces
- Using Show Commands
- Remotely Monitoring Traffic
- Capturing System Information for Technical Support
- Appendix B: Supported RADIUS Attributes
- Appendix C: Mobility Domain Traffic Ports
- Appendix D: DHCP Server
- Glossary
- Index
- Command Index
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Nortel WLAN Security Switch 2300 Series Configuration Guide
Configuring and Managing IP
Interfaces and Services
MTU Support
WLAN 2300 System Software (WSS Software) supports standard maximum transmission units (MTUs) of 1514 bytes
for standard Ethernet packets and 1518 bytes for Ethernet packets with an 802.1Q tag. WSS Software does not support
changing of the MTU through software configuration, and WSS Software does not do path MTU discovery.
Communication between WSSes is supported over any path MTU, and the Mobility Domain itself can run over the
minimum IP path MTU. However, tunnels between two WSS switches require a path MTU of at least 1448 bytes.
This minimum MTU path is required because Nortel devices use IP tunnels to transport user traffic between WSS
switches and to transport user traffic and control traffic between switches and AP access ports. Encapsulation of the
packets for tunneling adds an additional 44 bytes to the packet headers, so WSS Software does fragment and reassemble
the packets if necessary to fit within the supported MTUs. However, WSS Software does not support defragmentation
except at the receiving end of an IP tunnel, and only to reassemble fragments created by another Nortel device for
tunneling.
If the path MTU between Nortel devices is less than 1448 bytes, a device in the path might further fragment or drop a
tunneled packet. If the packet is further fragmented, the receiving WSS will not be able to reassemble the fragments, and
the packet is dropped.
MTU Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Configuring and Managing IP Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Configuring the System IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Configuring and Managing IP Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Managing the Management Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Configuring and Managing DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Configuring and Managing Aliases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Configuring and Managing Time Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Managing the ARP Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Pinging Another Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Logging In to a Remote Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Tracing a Route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
IP Interfaces and Services Configuration Scenario . . . . . . . . . . . . . . . . . . . . . . . . . . 152