Re: Multicast and IP-conntrack problem

Rusty Russell (rusty@rustcorp.com.au)
Sat, 24 Mar 2001 20:58:07 +1100

In message <NEBBLEJBILPLHPBNEEHIEEMCCAAA.mwilson@dds.nl> 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
> 195.38.203.147 -> 224.0.0.2

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.

Rusty.

--
Premature optmztion is rt of all evl. --DK
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