Theoritically speaking, any device that is fully standards based IPSec complaint, should be able to establish a VPN with the PIX firewall. Practically speaking, no I have not tried it. This setup should work though you are likely to face interop issues which is the case whenever a VPN setup between devices from different vendors is attempted.
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...