I have Pix 520 running 6.2(1) and am trying to implement some outbound filtering. Basically I want to deny any host on the inside interface the ability to do pop3 or smtp connections on the outside interface.
I have a mail server on a DMZ that they are supposed to use and it needs to be able to accept pop3 logins and do smtp processes. on both inside and outside.
My access list to deny pop3 and smtp from inside to outside is below, but it does not deny someone from the inside accessing a mail server on the outside. What am I missing?
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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...