Administrator Guide

Layer 2 Switching Commands 487
Command Mode
Global Configuration mode.
User Guidelines
There is no equivalent MLD command since this setting applies to both
protocols.
Example
console(config)#ip igmp snooping unregistered floodall
ip igmp snooping vlan mrouter
This command statically configures a port as connected to a multicast router
for a specified VLAN. Use the no form of this command to remove the static
binding.
Syntax
ip igmp snooping vlan vlan-id mrouter interface interface-id
no ip igmp snooping vlan vlan-id mrouter interface interface-id
• vlan-id — A VLAN identifier (Range 1-4093).
• interface-id—The next-hop interface to the multicast router. Ethernet
interface identifiers and port channel identifiers are allowed.
Default Configuration
There are no multicast router ports configured by default.
Command Mode
Global Configuration mode.
User Guidelines
It is preferable to configure mrouter ports for IGMP snooping as opposed to
configuring a static MAC address entry for the router. A static MAC address
entry is tied to a specific port whereas an mrouter configuration will
dynamically learn the MAC address of the router. Multiple mrouter ports may
be configured for a VLAN.