Router to ISA 2K VPN Problem

From: AntCat (AntCat_at_discussions.microsoft.com)
Date: 03/22/05


Date: Tue, 22 Mar 2005 05:31:03 -0800

I am trying to setup a site to site VPN from an ADSL Draytek 2600 router
(Remote site with Static Public IP Address, DHCP server for remote LAN) to
our SBS2K server (Head Office with different Static Public IP Address), which
is behind another ADSL Draytek Router.

I have run the Local ISA VPN Server Wizard on the SBS and have set it up
that the SBS can both initiate a connection to the remote Draytek router as
well as act as a server from the router. I have setup a LAN to LAN profile on
the Draytek router to only Dial-Out at the moment with no timeout. The
username for connecting to the VPN Demand Dial Interface is the user that the
SBS VPN wizard created but I had to reset the password for the username
within Active Directory. The Demand-Dial interface on the SBS is set to a
persistent connection.

The LAN IP address of the router is different to the SBS.

When I try and ‘Dial’ the VPN link to the SBS the VPN is not connecting and
I keep on getting the following 2 system event errors in the SBS system log
and am not sure why ? In the remote access log the SBS knows that the remote
router is trying to setup a VPN link but is being disconnected.

Source: Remote Access
Event Id: 20050
Description:
The user OURDOMAINNAME\username connected to port VPN3-3 has been
disconnected because no network protocols were successfully negotiated.

Source: Remote Access
Event Id: 20049
Description:
The user connected to port VPN3-3 has been disconnected because the
authentication process did not complete within the required amount of time.

Any help would be greatly appreciated.

Thanks in advance.
Antony



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