I'm trying to find out how to setup to using non standard tcp port on PIX. For example, I'd like to setup SMTP and POP3 access for users who are coming from outside. Instead of using port 25 and 110, I'd like to use non standard port for security purpose. While I was doing research, I found I can use PAM. Is this possible option on PIX? I can't seem to run any of the command.
Lets assume that your internal mail server is 10.10.10.10 and the public IP for this mail server is 22.214.171.124. Now, you want to use 2525 for smtp and 1100 for POP3. For this, you can use following commands-
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...