Re: Advice for Implementing IPS Signature-Categories
On router platforms, you can always use basic or advanced as a starting point based on the memory availability of your router.
If you have less than 128MB memory, start with basic.
If you have more than 256MB memory, start with advanced.
Note: Both advanced and basic category include high severity, high fidelity signatures carefully selected by Cisco team.
All other categories can be used to selectively config signatures. There is no specific preference order, since signature selection depends on the network and function you want to achieve using IOS IPS.
The best practise is to use either basic or advanced, not use them both. Because advanced category is designed to include all signatures included in basic. So the answer to your last question is basic is not required, and if it is configured in CLI, just remove the basic.
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...