hi all i m trying to set up the following NUMBER a linux server running with a modem for internet connectivity and an ethernet card for lan connectivity NUMBER other lan pcs with ethernet cards using the linux server for dns dhcp etc basically i want to route any non lan traffic through the pppNUMBER i ve got some of the way but like a similar post earlier about modem problems when i am connected to the internet with ehtNUMBER up the routing is all incorrect and noting goes out through pppNUMBER ehNUMBER must be the default route or something is there standard out of the box linux tools that will carry out portmapping on behalf of the lan pcs i m planning on non routable addresses NUMBER NUMBER x x for the lan routed outwards via the pppNUMBER interface can someone point me at the right howtos or routing documentation i need to follow thanks dermot irish linux users group ilug URL URL for un subscription information list maintainer listmaster URL 