I have certain routers that I want to monitor. However, rather than being alarmed only certain traffic, I want to be notified when there is traffic to/from the device that is NOT SNMP(161) or Syslog(514). Is this possible and is it practical?
I am not sure how to create a signature to do this. Can anyone help?
Signature 4508 will detect non-SNMP traffic on UDP port 161. We don't currently have a signature for detecting non-syslog traffic on UDP port 514 though. This will need a non-trivial signature requiring some development work. If you feel strongly that this is needed, please file an ehancement request via your account representative or the TAC.
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...
[toc:faq]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 and UDP are I...