Specifications

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Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges

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Chapter 2 Cisco IOS Commands for Access Points and Bridges

ip igmp snooping vlan

Use the ip igmp snooping vlan global configuration command to enable IGMP snooping on a Catalyst

VLAN.

[no] ip igmp snooping vlan vlan-id

Note If there is no multicast router for processing IGMP query and response from the host, it is mandatory

that no ip igmp snooping be configured on the access point. When IGMP snooping is enabled, all

multicast group traffic must send IGMP query and response. If an IGMP query or response is not

detected, all multicast traffic for that group is dropped.

Syntax Description

Defaults This command has no defaults.

Command Modes Global configuration

Command History

Examples This example shows how to enable IGMP snooping on a Catalyst VLAN:

AP(config)# ip igmp snooping vlan 1

This example shows how to disable IGMP snooping on a Catalyst VLAN:

AP(config)# no ip igmp snooping vlan 1

Related Commands

vlan id Specifies the Catalyst VLAN number.

Release Modification

12.3(8)JA This command was introduced.

Command Description

show ip igmp snooping

groups

Displays IGMP snooping group information.