you should try marking squid packets (output chain for example) and then
add a rule (ip rule ls)..
in lartc.org http://www.lartc.org/lartc.pdf have plenty of examples.
Unfortunately, this will not work. It is not possible to route a locally-generated packet using a firewall mark because the routing decision is taken before the packet is sent to the MANGLE OUTPUT chain. Routing a packet using a firewall mark works only in the PREROUTING Netfilter hook.
Stephane Ouellette
tips: when marking packets on iptables, use hexa not decimal notting. try patching the kernel if does not work (http://www.ssi.bg/~ja/) cause kernel default source may not work...
and its probably that squid use as source adrres of ip header the ip on the default route, so you might have to nat that src to the other interface (so packets leave the interface you want and come back in that interface and not the other -if they come..- )
greets and good speed.
On Wed, 2003-03-05 at 10:27, Alessandro Ren wrote: