I am connecting from an XP laptop with a wired connection to my VPN 3000 concentrator using the cisco vpn client 5.0.01.0600. The client connects fine but then drops connection in about 10 min. I have no timeout settings on the concentrator. The message says
Secure VPN connection terminated locally by the Client
Reason 412: The remote peer is no longer responding
I do as well, it seems that the version of client that is most stable is 3.6.3 which the majority of my users have and which is why I have been hesitant to mass upgrade. The xp laptop that I am testing from has no xp firewall enabled and is behind a netopia router with the firewall turned off. I am connected to a Time Warner cable modem.
you will need to check all the firewalls between the clients and the vpn concentrator e.g. are the clients running another firewall besides xp firewall, what are the translation timeouts on the dsl\cable routers, timeout settings on the firewall just before the vpn concentrator.
How are you running your VPNs. ipsec-over-tcp, ipsec-over-udp or NAT-T. Try testing each.
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...