1) Yes and No. It's abit misleading because of the commands used sometimes on cisco kit but IKE has a phase 1 where it sets up a secure communication between the peers and then a phase 2 where it sets up the actual SA's to transfer the data. So IKE actually is involved in both phases.
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...