Re: Packet loss when using NFQUEUE and nf_conntrack_ipv4

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> Yes.  The packets are tossed because the conntrack they're associated
> with is unconfirmed, and on reinject they clash with the unconfirmed
> ct of the 1st packet that has been inserted into the conntrack table.

Is there a way it can be worked around other than queueing in the raw
table? This isn't suitable for me as I want to check the connmark to
tell if packets in a given stream should be queued.

I've been trying to follow the code involved and I don't understand
what purpose the confirmed flag serves. Why is adding to the conntrack
table saved until the very end of netfilter processing and why does
nf_conntrack_confirm have to drop packets when an entry already exists
in the table rather than using it?

Thanks

-- 
Daniel Collins
Junior Developer
daniel.collins@xxxxxxxxxxxxxx

Smoothwall Ltd
Phone: +44 (0­) 8701 999500
www.smoothwall.net

Smoothwall Limited is registered in England, Company Number: 4298247
and whose registered address is 1 John Charles Way, Leeds, LS12 6QA
United Kingdom
Any opinions stated in this message are solely those of the author.
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