VPN to 2K3 Server and ISDN Router?

I'm trying to set up VPN so employees can access our network from home.

An ASCII map of our network:

[ INTERNET ]
|
|
ISDN Router <--set up as a DHCP server with a ONE IP-wide scope (For the
server)
|
|
Server <--two network cards, one to the ISDN Router, one to the hub/employee
computers

How do I set up the VPN connection with this kind of setup? Do I make the
outside computers connect to the public IP Address at the ISDN router? How
do packets then make it to the server, to authenticate connections, etc?

Is it even possible?

Sure, you can create VPN server using 2k3. Check this for VPN solutions,
http://www.chicagotech.net/VPN%20process.htm

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Bob Lin, MS-MVP, MCSE & CNE

Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
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"Tim Bott" <(E-Mail Removed)> wrote in message
news:AF8EFB83-F67C-45EA-80AD-(E-Mail Removed)...
> I'm trying to set up VPN so employees can access our network from home.
>
> An ASCII map of our network:
>
> [ INTERNET ]
> |
> |
> ISDN Router <--set up as a DHCP server with a ONE IP-wide scope (For the
> server)
> |
> |
> Server <--two network cards, one to the ISDN Router, one to the
> hub/employee
> computers
>
> How do I set up the VPN connection with this kind of setup? Do I make the
> outside computers connect to the public IP Address at the ISDN router?
> How
> do packets then make it to the server, to authenticate connections, etc?
>
> Is it even possible?