> Even though you can direct traffic from external-to-external, unless
> it's usng a local proxy like balance, the response will fly directly
> from the external server to the client, and so arriving out-of-context.
I know about that. That's why I have an SNAT rule to re-write
the source addr of the forwarded packets so that responses
come back to the forwarding box and conntrack de-NAT them
back to the original client.
I've worked around the problem by adding this to
/etc/shorewall/start:
run_iptables -t filter -A eth0_fwd -o eth0 \
-m policy --dir out --pol none -j net2net
But I'm sure there is a more "proper" way to do this.
Later,
Kenn
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