Determining which IGMP version is running on an interface rtr-a>show ip igmp interface e0 Ethernet0 is up, line protocol is up
Internet address is 220.127.116.11, subnet mask is 255.255.255.0
IGMP is enabled on interface
Current IGMP version is 2
CGMP is disabled on interface
IGMP query interval is 60 seconds
IGMP querier timeout is 120 seconds
IGMP max query response time is 10 seconds
Inbound IGMP access group is not set
Multicast routing is enabled on interface
Multicast designated router (DR) is 18.104.22.168 (this system) IGMP querying router is 22.214.171.124 (this system) Multicast groups joined: 126.96.36.199 188.8.131.52
Use the show ip igmp interface command to determine which version of IGMP is currently active on an interface.
The IGMP version is indicated by the line in the example that reads "Current IGMP version is
© 2006 Cisco Systems, Inc. Implementing Multicast 7-25
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