Unfortunately PIX does not terminate PPTP like it does with Cisco VPN concentrators, however, L2TP over Ipsec is supportted where you can still use the Macrosoft PPTP vpn client, personally I have not implemented L2TP as we have VPN concentrators for both Cisco VPN client users and Microsoft PPTP clients but if you read the bellow links you can implement L2TP over Ipsec. PIX/ASA will be configured for L2TP for remote access, your PPTP clients can use the native VPN client which will be specified in PPTP properties indicated by type of VPN L2TP over Ipsec
PIX does support MS PPTP VPN. I have a pix configured for that.
I dont see any issue if we can implement along with VPN client. I just tried configuring VPN client yesterday on the pix which I already have PPTP and did not work. But I believe that is something to do with my encryption and auth settings which I see from the debug messages. I am still working on it.
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...