check_igmp_version_on_an_interface
Check IGMP Version on an Interface
May 2020
This is from CentOS 7.7. It may work with other Linux distros, but I cannot guarantee that.
One way to check the IGMP version being used by an interface is to use the following command:
cat /proc/net/igmp
Below is a sample output:
Idx Device : Count Querier Group Users Timer Reporter 1 lo : 1 V3 010000E0 1 0:00000000 0 2 eth0 : 4 V2 61FBDBED 1 0:00000000 1 FE7F02EB 3 0:00000000 1 120000E0 1 0:00000000 1 010000E0 1 0:00000000 0 3 eth1 : 3 V3 026400EF 1 0:00000000 0 016400EF 1 0:00000000 0 010000E0 1 0:00000000 0 4 eth2 : 2 V3 FE7F02EB 1 0:00000000 0 010000E0 1 0:00000000 0
Here we can see that eth0 is using IGMP V2, while eth1 and eth2 are using IGMP V3.
check_igmp_version_on_an_interface.txt · Last modified: 2023/03/09 22:35 by 127.0.0.1