This is odd one, I'm running Windows Vista on a test laptop for work. The Cisco Client seems happy to connect from our test DSL connection in the office and from my EVDO card. But at home I get the 412 remote peer no longer responds crap. I tried wired and wireless, changed my MTU to 1500 and 1300 on both my router at home and by client. Tried using TCP port 10000 (which is setup on the ASA) and UDP, the logs dont show anything blocked.
I'm using a D-Link DGL-4300, I have gotten my WinXP box to connect from home. Work we are using an ASA 5520.
I'm having a similar problem with error 412. I recently changed to a D-Link DI-634M wireless router. I'm using an XPPro over WLAN connection with no luck. I've tried UDP/TCP port forwarding and firewall disabling for 10000,4500,500 with no success. If I DMZ the laptop it works OK and if I'm connected through another location. It sounds similar to your situation. Have you made any progress?
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...