It makes sense to add this simple statistic to keep track of received multicast packets. Signed-off-by: Stephen Hemminger <shemminger@xxxxxxxx> --- bridge.orig/net/bridge/br_input.c 2006-04-21 14:28:55.000000000 -0700 +++ bridge/net/bridge/br_input.c 2006-05-04 16:07:24.000000000 -0700 @@ -66,6 +66,7 @@ } if (is_multicast_ether_addr(dest)) { + br->statistics.multicast++; br_flood_forward(br, skb, !passedup); if (!passedup) br_pass_frame_up(br, skb);