Re: Multicast and IP-conntrack problem

Rusty Russell (
Sat, 24 Mar 2001 20:58:07 +1100

In message <> you write:
> Hi!
> I'm having some problems with ip-connection tracking and multicast packets:
> the conntrack stuff doesn't seem to be able to handle multicast packets,
> flooding my logs with messages like these:
> Feb 28 15:53:00 procyon kernel: NAT: 0 dropping untracked packet c7105b00 1
> ->

Yes. Connection tracking doesn't handle multicast. NAT drops packets
not handled by connection tracking.

Making connection tracking handle multicast is a minor project in itself.


Premature optmztion is rt of all evl. --DK
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