From: Hangbin Liu <liuhang...@gmail.com> Date: Fri, 26 Oct 2018 10:28:43 +0800
> Based on RFC 4541, 2.1.1. IGMP Forwarding Rules > > The switch supporting IGMP snooping must maintain a list of > multicast routers and the ports on which they are attached. This > list can be constructed in any combination of the following ways: > > a) This list should be built by the snooping switch sending > Multicast Router Solicitation messages as described in IGMP > Multicast Router Discovery [MRDISC]. It may also snoop > Multicast Router Advertisement messages sent by and to other > nodes. > > b) The arrival port for IGMP Queries (sent by multicast routers) > where the source address is not 0.0.0.0. > > We should not add the port to router list when receives query with source > 0.0.0.0. > > Reported-by: Ying Xu <yi...@redhat.com> > Signed-off-by: Hangbin Liu <liuhang...@gmail.com> Applied and queued up for -stable, thanks.
