Displays information about the IGMP cache. If you do not specify a VRF name or range of VRF IDs, the results show information for the Global Router. If you do specify a VRF name or range of VRF IDs, the results show information only for the VRFs you specify.
show ip igmp cache
show ip igmp cache vrf WORD<1-16>
show ip igmp cache vrfids WORD<0-512>
None
Privileged EXEC
The show ip igmp cache command displays the following information:
| Output field | Description | 
|---|---|
| GRPADDR | Indicates the multicast group address (Class D) that others want to join. Many incoming ports can use the same group address. | 
| INTERFACE | Indicates the physical interface or a logical interface (VLAN), which received group reports from various sources. | 
| LASTREPORTER | Indicates the IP address of the source of the last membership report received for this IP multicast group address on this interface. If the interface does not receive a membership report, this object uses the value 0.0.0.0. | 
| EXPIRATION | Indicates the minimum amount of time that remains before this entry ages out. | 
| V1HOSTIMER | Indicates the time that remains until the local router assumes that no IGMPv1 members exist on the IP subnet attached to this interface. | 
| TYPE | Indicates whether the entry is learned dynamically or is added statically. | 
| STATICPORTS | Indicates the list of statically-defined ports. | 
| L2ISID | Indicates the I-SID associated with the Layer 2 interface. |