I'm trying to connect with a VPN Client which is behind a Checkpoint F/W to a CiscoPIX 515. Although the connection is established i cannot access the internal network behind the PIX. I configured NAT-T in PIX 515 and open the appropriate tcp/udp ports (500,4500,10000) in chekpoint but i get the following error in the log file of the VPN Client:
Cisco Systems VPN Client Version 5.0.00.0340
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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...