Multiples gateways

[jdh]

Hi !

Is it possible to have differents gateways dependant on kind of traffic ?

I explain my goal :

• I have a pfsense firewall (WAN+LAN+OPT1=DMZ),
• On DMZ, I have a server (more powerfull than the firewall) able to do transparent proxy cache (Squid), transparent proxy ftp (frox), transparent proxy pop3 (p3scan),

If I try to use a NAT rule (source interface LAN, address any), the ip address is changed to the DMZ server.
If I try to use a "policy based rules", the traffic goes from the WAN of firewall.

The idea is to be able to change de "defaut gateway" (as a routeur) depending of the protocol.
For exemple, when I use a routeur the mac address is set to the routeur and not the ip address.

A example for Linux/iptables (in french) is http://irp.nain-t.net/doku.php/100iproute:start