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Multiple VPN Connections / Share with LAN

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ToddWW

Programmer
Mar 25, 2001
1,073
US
Windows 2k Server
I need to make multiple PPTP and L2PT VPN connections with our vendors and customers. Currently I do this on a single machine and it works just fine. I need to know how I can share access to those VPN connections with other computers on my LAN. Here is what I have done so far:

I am able to connect to multiple VPN servers from a single machine [10.10.10.7] and I can access the resources on the devices on each of those networks from that machine [10.10.10.7]

On one of those VPN connections, I have a device on [10.4.82.1]

I can go to another machine on the LAN [10.10.10.63] and add the following persistent route.

route add -p 10.4.82.0 MASK 255.255.255.0 10.10.10.7

That route works fine. If I try to ping 10.4.82.1 (assuming it will route the traffic to 10.10.10.7 where the VPN connection is established) the ping fails.

However, If I go into Properties on [10.10.10.7] for that VPN connection and enable Sharing, then the ping from the external machine [10.10.10.63] on the network does work.

So that works just fine. However, I have multiple VPN connections on that machine and if I try to enable sharing on a different VPN, Windows tells me it will change the sharing from the existing VPN connection.

Basically, using the above method, I can only share one (single) VPN connection with the LAN. I want to share them all with the LAN.

I was told instead of enabling sharing on the VPN connection, I should enable sharing on the on board NIC. Unfortunately, you don't get a Sharing option on an on board NIC unless you have two or more network adapters. I confirmed this. When I click on Properties for an on board NIC on a machine that has only one (1) network adapter, I don't get a sharing tab. But if I right click on Properties for an on board NIC on a machine that has (2) network adapters, I do get a sharing tab.

So I have two choices. Install a second network adapter on the machine I currently use to connect to these multiple VPN hosts, or move these connections to a machine on my network that already has 2 network adapters. Either way, this is going to require some work.

So, basically, what are my options here? Is it true that if I have a machine connected to multiple VPN hosts AND I enable Sharing on the on board NIC, can I access the resources on ALL of those VPN tunnels from my LAN using persistent routes.

Or I have been told to try the Windows Remote Access Service (available on w2k server) to manage these VPN connections and share them with the LAN.

I have also been told to investigate WinRoute by Kerio. Any insight to this would be very helpful.

ToddWW
 
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