Ip Outgoing

exist a option of ip out_going, a sample the squid, tcp_outtcp_outgoing_address force the out trafic in interface eth0 or eth1 or eth2?

              (eth1 - In)                               (Eth2 - Out)

PAP --> eth1 --> (ASTERISK) --> eth2 --> PAP
|-> eth0 (Local)



I am not sure what you are trying to do here but if each PAP (I assume this is the Linksys device) is on a separate subnet then Asterisk will act as a SIP proxy to handle the traffic if you just simply want to make calls from a device on one subnet to a device on another.