I am trying to use the Attachement Content Filter to prevent the distribution of a sensitive document outside of our orginization. I have a filter that matches on the filename that works fine. However when I try to filter based on attachment contents it seems to not be working. I have selected a text string somewhat unique to the document that I would like to match on. The attached document is a PDF file. Is the attachment content scanner looking for a regexp match in the MIME encoded attachment maybe?
For this issue it would be advisable to open a support ticket. There are a couple of different issues that can cause this. We would need to review the mail logs for the message in question to understand the issue.
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...