Hi, My gateway server is Ubuntu 6.06.1 LTS, iptables v1.3.3. By ifconfig I have added one more ip say 1.2.3.4 (eth0:1). iptables-save gives me the output at, http://pastebin.ca/446625 # cat /proc/sys/net/ipv4/ip_forward 1 But when I connect to 1.2.3.4 port 25, instead of redirecting me to 10.10.200.2 it connects me to port 25 of the gateway machine. I am totally confused, can anyone help me out please? With warm regards, -Payal