On Sat, Feb 16, 2008 at 10:52:43AM +0100, abdelkader belahcene wrote: > I tried to use one machine with two card, as gateway, I activate the > ip_forward, ( echo "1" > /proc/sys/net/ipv4/ip_forward ), but it > didn't work. > no replying packet when I ping from a machine to another via my GW, > > Something else is needed ?? Routing. Perhaps NAT. DNS. etc. Install and read the shorewall-doc package. Then install shorewall and set it up to do what you want. Doug.