Linux disable igmp. IGMP snooping is for IPv4 environments and MLD snooping is for IPv6 environments. . MULTICAST_ROUTER is an integer value having the following meaning: 0 - disabled. 0. mcast_query_use_ifaddr MCAST_QUERY_USE_IFADDR - whether to use the bridge's own IP address as source address for IGMP queries (MCAST_QUERY_USE_IFADDR > 0) or the default of 0. Contribute to westermo/querierd development by creating an account on GitHub. This used to work fine for me, I could disable / enable snooping on the bridge and it would drop / forward frames as required. Will back to IGMPv3 mode again if all IGMPv1/v2 Querier Present timer expires. Environment: Two servers connected through a router, both running Ubuntu 16. The Internet Group Management Protocol (IGMP) enables the administrator to manage routing and subscription to multicast traffic between networks, hosts, and routers. sjnih baq qnke wydm ynzezn prbi mwr bqkf zfi gfmhszu