I'm trying to configure a VPN client (3.5.1C) for a remote office that uses a Netgear RM356 router. This router conencts to a dialup Internet service and serves a small network for 4 users and uses NAT.
The problem is that the VPN client cannot seem to authenticate - it transmits to the PIX but does not receive back a response during the handshake process.
The PC can connect to the PIX when dialed driectly into the ISP.
Can anyone suggest what needs to be set on the Router/PIX/Client to get this to work or maybe suggest a better solution for a small remote office?
Re: VPN 3.5.1C Thru a small router wth NAT to a PIX
Just want to clarify, are you using the PIX to terminate the VPN connection? The PIX currently doesn't support IPSec thru NAT or IPSec thru TCP, which is the one you would need to turn on the client and vpn head end.
If you terminate your VPN on say a VPN 3000,
this device supports ipsec over udp or ipsec thru tcp and you would be able to operate the client behind a NAT/PAT device, see:
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...