We're using a PIX 515 6.3(5) and we currently have our telecommuters using PPTP VPN connections to work from home or on the road. Users that are buying new machines with Windows Vista are having a hard time connecting to our network and I think it has something to do with the new IPv6 or other network settings. Whenever someone tries to connect to the firewall via VPN, they get a "Couldn't negotiate PPP parameters with remote host" message.
Is 6.3(5) compatible with IPv6? Do I need to add anything to our PIX config to get VPN connectivity working again with Vista?
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...