RE: VPN to a cisco VPN server that uses ipsec

  • From: "Greg Foulks" <greg.foulks@xxxxxxxx>
  • To: "[ Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Wed, 20 Mar 2002 13:49:32 -0500

I do not think you can connect to that VPN server that is using IPSEC from 
behind your ISA server. Because IPSEC does not support
NAT and I assume your internal clients are using NAT to gain resources on the 
public net.


-----Original Message-----
From: skip [mailto:skip@xxxxxxxxxxxxxxxxx]
Sent: Wednesday, March 20, 2002 1:12 PM
To: [ Discussion List]
Subject: [isalist] VPN to a cisco VPN server that uses ipsec

I have setup ISA server to be able to allow incomming vpn
calls and outgoing vpn calls, and it works fine, now i
have clients on the internal network that need to vpn
into a cisco vpn server on a remote network that uses
ipsec. When the client tries to connect to the remote
network from behind ISA, it gets all the way to the point
where it says "Authenticating", and then it fails. Is
there anything i can do on my end to let these clients
authenticate with this cisco vpn server.


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