> would became this in iptables > > iptables -N soporte > iptables -A soporte -s 10.0.1.1 -j ACCEPT > iptables -A soporte -j DROP > iptables -A FORWARD -s 10.0.0.0/25 -j soporte > iptables -t nat -A POSTROUTING -s 10.0.1.1 -j MASQUERADE And it should be noted that with these rules in place, all packets that get forwarded to the soporte chain will get DROPPED because the forward rule only forwards IP's in the range of 10.0.0.0-10.0.0.127 and the accept range is restricted to -only- IP 10.0.1.1. The 4th rule should be: iptables -A FORWARD -s 10.0.0.0/16 -j soporte Cheers! John Friel III Frieltek Consulting, Inc.