Reference Guide

IGMP Commands 1035
Syntax
ip igmp
no ip igmp
Default Configuration
Disabled is the default state.
Command Mode
Global Configuration mode
User Guidelines
A multicast routing protocol (e.g. PIM) should be enabled whenever IGMP is
enabled.
L3 IP multicast must be enabled for IGMP to operate.
Example
The following example globally enables IGMP.
console(config)#ip multicast
console(config)#ip igmp
ip igmp last-member-query-count
Use the ip igmp last-member-query-count command in Interface
Configuration mode to set the number of Group-Specific Queries sent before
the router assumes that there are no local members on the interface.
Syntax
ip igmp last-member-query-count Imqc
no ip igmp last-member-query-count
• Imqc — Query count. (Range: 1-20)
Default Configuration
The default last member query count is 2.
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