I have a request to allow SMTP access from the outside world to my 'inside' LAN. Try as I may I just cannot seem to allow access through on port 25. Port 110 (POP3) is working fine just not 25!! I have no fixup going on and SMTP is working fine to servers in the DMZ so I'm thinking it's a STATIC issue. Could you take a look at the attached config and spot anything wrong please?? Desperate to get this working asap. The SMTP server in question for starters is MAIL.BTINTERNET.COM - which I can telnet to from 'outside' the firewall but not from anywhere on the inside LAN. Help!
ps. I've had to cut down the config considerably for obvious reasons so hope it still makes sense...
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...