Re: Fw: Problems with nf_nat_ftp.ko and nf_conntrack_ftp.ko in 2.6.22.6

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Please don't trim CC lists.

Pascal Hambourg wrote:
Patrick McHardy a écrit :

I can reproduce this with forwarding between two bridges.

This matches my own observations.

The reason is that skb->nf_bridge still contains the data
from the first bridge and so br_netfilter thinks this is
a bridged packet.

Am I missing something if I think that this behaviour is badly broken ?

I don't know how this is supposed to work,
but it seems to me that on packets going out a bridge device
this should be reset in case it originates from a different
bridge (actually I think it should be reset unconditionally

So do I. Otherwise a packet received on a bridge can be forwarded back to the same bridge and would be wrongly considered bridged.

but that would probably break bridged DNAT).

Why ?


Because if I'm not mistaken these packets also go through the
bridge device xmit function.
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