Hi !!! I've installed a Squid box transparent mode (3STABLE7) with two network cards and I must to implement this scenario: - The network cards are connected at two diferents internal Class C network with public IP. - If the http requeriment asking about an object that is in the cache, the Squid give the object throught the same interface that the original requermients comes (I tink that this is not a problem, because de origin IP is in the same network that the squid have). - If the http requeriment asking about an object that isn't in the cache, the Squid go direct to public network trought the same interface that the original requermients comes (This is the problem). Are some configurations of squid.conf that allow me to do that? I think resolve te problem, externally form Squid (with iptables, for example) Thanks a lot !!! Regards !! Ramiro