Trying to build a VPN tunnel from a 827 DSL router to a Pix515, I have built over 80 of these to the same PIX and had no problems. Now every one I build is telling me the below message in my debugging of ipsec and isakmp. If anyone knows what this means and possibly a fix, please let me know. The problem seems to start at the line that says "01:44:00: ISAKMP (0:32): processing NOTIFY PROPOSAL_NOT_CHOSEN protocol 3"
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...