Sort of :-) All traffic comes from one IP, but I could split the traffic using regex acls (e.g. hi/lo traffic sites, ftp/http...)
If you figure out how to differentiate traffic on the outer squid (I imagine that it sees traffic as all sourced from the firewall IP) then the tcp_outgoing_address would do what you want...
But what next? Souce based routing? I am not very familiar with this...
Regards, Hendrik Voigtländer
