You should be able to get onto CCO and get a DES license for free. If you do not have a CCO login, you can email email@example.com, send them the PIX serial number and get a DES key that way. If it is a new PIX IPSec commands are already there. All you need is a DES key or you can purchase a 3DES key.
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...