I have Cisco 876 router (with 12.4(4)T2 IOS) and Cisco VPN client ver. 4.6.02).
I am trying to configure the router as a VPN concentrator for 2 groups, but the tunnel set-up fails already with parameters negotiation. Please find attached config and output from 'debug crypto isakmp'. Ethereal trace is also included (the client has IP: 172.24.4.61, routers interface is 172.24.34.67).
I tried to downgrade IOS and changed the platform to 2821, but with the same result.
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...