Either assign 200.40.199.221 to that external interface, or make sure you have a route to that address (even a blackhole route will do) and use proxy arp. For each of these solutions search the web as to how to set it up. Ramin On Tue, Jul 22, 2003 at 06:23:40PM -0300, Javier Garza wrote: > Hy > I have a redhat-release-7.2-1, with kernel-2.4.7-10 and > iptables-1.2.3-1. > > I want to assign a public IP 200.40.199.221 to my PCs for access to > internet, > and the interface outside is 200.40.199.220. > > iptables -t nat -A POSTROUTING -s 10.220.5.13 -o eth1 -j SNAT > --to-source 200.40.199.221 > > The problems is the router outside, not kwon the mac to 200.40.199.221, > because my linux not reply the > MAC assigned to 200.40.199.221. > my linux have a MAC entry to IP 200.40.199.221 equql to MAC of interface > outside. > > Help me please.!! > > _________________________________________________________________ > Charla con tus amigos en línea mediante MSN Messenger: > http://messenger.yupimsn.com/ >