4 users?  Sounds like a job for a LAN to LAN VPN.  Cleanest solution
would be to use an ADSL router that has VPN capability, next best
solution would be to stick a cheap VPN box behind the ADSL router.


Regards,

Steven McNutt, CCIE #6495, CCSE, MCSE
President
LightningCloud Technologies
bus: 904-241-0064
[EMAIL PROTECTED]



-----Original Message-----
From: Simon Spurrell, T-GR [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 01, 2002 4:26 AM
To: [EMAIL PROTECTED]
Subject: [FW-1] Microsoft PPTP across address translation router


I have the following situation:

A Remote Office with 1 to 4 users want to connect with laptop via PPTP
Remote Access VPN to a Microsoft PPTP VPN server.

Remote office have an Office Grade ADSL router with address translation.
One dynamically assigned IP Address for the ADSL router.

In the main office we have a checkpoint firewall with a DMZ. The
Microsoft VPN server has one network card in the DMZ and one network
card on the LAN. We use the IP Address of the DMZ network card for the
VPN tunnel configuration on the clients.

The problem is only one (sometimes two) clients from the remote office
are able to connect to the Microsoft VPN server. If more than this try
to connect, one clients VPN tunnel is dropped.

I think it is a problem with the ADSL address translation router.

Has anyone had this problem before? When I called the ADSL company they
said, "this is the case because the ADSL router only has one internet
routable IP Address".

The ADSL ISP are able to give me one fixed IP on request. They might be
able to replace the router. They are not able to give me a subnet of
real IP's.

Could anyone advise.

Thanks.
Simon

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