IGMP sourced from WAN on 0.0.0.0 in logs
I have block bogon networks enabled and in my firewall logs i see the following appear every 2 minutes:-
Dec 19 09:04:07 WAN 0.0.0.0 126.96.36.199 IGMP
Looks like multicast traffic but i don't understand why its coming from the WAN side and every 2 minutes. I have Sky HD box which has an on demand service (on the LAN) and i thought it was that initiating a connection and this was the reply, but even when its been disconnected for several hours i still see these messages.
I am also seeing these IGMP blocks and have been wondering what to do.
In my case, instead of 0.0.0.0 I have 192.168.0.1 as the (wan) source. Destination is the same.
Anyone have any ideas what we can do or should do?