Reference Guide

182 IGMP Snooping Commands
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Default Configuration
IGMP snooping is disabled.
Command Mode
Interface Configuration (VLAN) mode
User Guidelines
• IGMP snooping can only be enabled on static VLANs. It must not be enabled on Private
VLANs or their community VLANs.
Example
The following example enables IGMP snooping on VLAN 2.
ip igmp snooping mrouter learn-pim-dvmrp
The ip igmp snooping mrouter learn-pim-dvmrp Interface Configuration (VLAN) mode
command enables automatic learning of multicast router ports in the context of a specific
VLAN. To remove automatic learning of multicast router ports, use the no form of this
command.
Syntax
ip igmp snooping mrouter learn-pim-dvmrp
no ip igmp snooping mrouter learn-pim-dvmrp
Default Configuration
Automatic learning of multicast router ports is enabled.
Command Mode
Interface Configuration (VLAN) mode
User Guidelines
• Multicast router ports can be configured statically using the bridge multicast forward-all
Interface Configuration (VLAN) mode command.
Console(config)# interface vlan 2
Console(config-if)# ip igmp snooping