Hi, I have got a pair of 2 public IPS to test from my ISP. I have assigned both for my gateway machine and one of them is Natted to a test mail server at DMZ. I can access the mail server from outside world as, telnet <external ip> 25 it works fine My internal users can access it as, telnet 10.10.10.2 25 it works fine, But I cannot do telnet <external ip> 25 from inside. Same for POP3 and HTTP. I cannot do it even from the gateway(firewall) machine itself. What must be the problem? With warm regards, -Payal
