In the GET VPN design and implementation guide, Cisco says you shouldn't encrypt control or management traffic. I can understand why you would exclude routing from the policy but why management? I always figured that the fail-closed ACL would include all the management traffic and could never reason out why it wouldn't be part of the encryption policy.
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...