Re: IGMP packets?

From: Chris Wright
Date: Wed Dec 08 2004 - 13:18:30 EST

* FoObArf00@xxxxxxxxxxxx (FoObArf00@xxxxxxxxxxxx) wrote:
> I have been trying to analyze igmp packets (queries, reports) with
> ttl of 1 ,of course, in the kernel and ran into a weird situation.
> Only when an interface is in promiscuous mode (i.e. tcpdump), the igmp
> packets get to ip_rcv on ip_input.c. I was wondering if someone can
> point in the right direction on how/where to get the these packets when
> not doing a tcpdump. Thanks

Could you be more specific? Which machines are involved (e.g. IIRC the
igmp report is not looped back locally). What do you mean by analyze in
the kernel?

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