I have a strange PAT issue. I have a 5510 firewall with some webservers, a switch and an internet router attached to the outside interface. If I use an internal machine with a static NAT I can ping and telnet to the router and switch and browse a webmail account on a webserver. Although, if I try to do that same thing from an internal machine using PAT (overload on the outside interface) it fails. Ping will reply one time and then time out the remaining three. Telnet and browsing to the webmail account both fail. Any suggestions would be appreciated.
I have this problem too.