diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/br_multicast.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 024139b51d3a..41cdafbf2ebe 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -1422,7 +1422,15 @@ static void br_multicast_query_received(struct net_bridge *br, return; br_multicast_update_query_timer(br, query, max_delay); - br_multicast_mark_router(br, port); + + /* Based on RFC4541, section 2.1.1 IGMP Forwarding Rules, + * the arrival port for IGMP Queries where the source address + * is 0.0.0.0 should not be added to router port list. + */ + if ((saddr->proto == htons(ETH_P_IP) && saddr->u.ip4) || + (saddr->proto == htons(ETH_P_IPV6) && + !ipv6_addr_any(&saddr->u.ip6))) + br_multicast_mark_router(br, port); } static void br_ip4_multicast_query(struct net_bridge *br, |