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4<br />

Command Line Interface<br />

Command Usage<br />

Depending on your network connections, IGMP snooping may not always be<br />

able to locate the IGMP querier. Therefore, if the IGMP querier is a known<br />

multicast router/switch connected over the network to an interface (port or<br />

trunk) on your router, you can manually configure that interface to join all the<br />

current multicast groups.<br />

Example<br />

The following shows how to configure port 11 as a multicast router port within VLAN 1:<br />

Console(config)#ip igmp snooping vlan 1 mrouter ethernet 1/11<br />

Console(config)#<br />

show ip igmp snooping mrouter<br />

This command displays information on statically configured and dynamically learned<br />

multicast router ports.<br />

Syntax<br />

show ip igmp snooping mrouter [vlan vlan-id]<br />

vlan-id - VLAN ID (Range: 1-4094)<br />

Default Setting<br />

Displays multicast router ports for all configured VLANs.<br />

Command Mode<br />

Privileged Exec<br />

Command Usage<br />

Multicast router port types displayed include Static.<br />

Example<br />

The following shows that port 11 in VLAN 1 is attached to a multicast router:<br />

Console#show ip igmp snooping mrouter vlan 1<br />

VLAN M'cast Router Ports Type<br />

---- ------------------- -------<br />

1 Eth 1/11 Static<br />

2 Eth 1/12 Static<br />

Console#<br />

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