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 IGMP
Snooping
Internet Group Management Protocol (IGMP) snooping controls multicast traffic on an WSS switch by forwarding
packets for a multicast group only on the ports that are connected to members of the group. A multicast group is a set of
IP hosts that receive traffic addressed to a specific Class D IP address, the group address.
The WSS switch listens for multicast packets and maintains a table of multicast groups, as well as their sources and
receivers, based on the traffic. IGMP snooping is enabled by default.
You can configure IGMP snooping parameters and enable or disable the feature on an individual VLAN basis.
The current software version supports IGMP versions 1 and 2.
Disabling or Reenabling IGMP Snooping
IGMP snooping is enabled by default. To disable or reenable the feature, use the following command:
set igmp {enable | disable} [vlan vlan-id]
If you do not specify a VLAN ID, the change is applied to all VLANs on the WSS switch.
Disabling or Reenabling Proxy Reporting
Proxy reporting reduces multicast overhead by sending only one report for each active group to the multicast routers,
instead of sending a separate report from each multicast receiver. For example, if the WSS switch receives reports from
three receivers for multicast group 237.255.255.255, the switch sends only one report for the group to the routers. One
report is sufficient to cause the routers to continue sending data for the group. Proxy reporting is enabled by default.
Disabling or Reenabling IGMP Snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Disabling or Reenabling Proxy Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Enabling the Pseudo-Querier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Changing IGMP Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Enabling Router Solicitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Configuring Static Multicast Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Displaying Multicast Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344










