Capturing and analyzing IGMP packets

I am wondering if Bro is able to capture and analyze IGMP packets ?

Bro doesn't have an IGMP analyzer. (Contributions for this welcome!)

I tried to turn all filters off ("redef capture_filters = {};" at the end of

I built a very simple signature:

signature header3
  src-ip ==
  event "Header 3"

When I run with this on a trace containing only IGMP traffic, nothing appends
even though there is plenty of packets with src-ip == in the trace.

You'll need to redef capture_filters so that it in some fashion includes
this traffic.