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Routing networks over a modem connection

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by vanhal

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I have been asked by my company to come up with a dialup solution for connecting two seperate networks via dial-up. Has anyone ever successfully accomplished this using Windows 2000 servers? I have tried but can not get network protocols (TCP/IP andIPX) to route over the PPP connection. Here is what I did.

Set up Two RRAS Windows 2000 servers on each network(network1 and network2). Each server has a NIC card and a Modem. I Configured RRAS as a RAS server (not a network router)to acept incoming and out going callson both servers. each servers NIC cards are configured with a static IP on there appropriate networks. Network 1 server will be used to accept incomming connections, this modem tests fine. I think the PPP adapter's config is correct. The server on network 2 is configured to dial-up. It should obtain its IP information from the the PPP adapter on the server located on Network 1. when I make the connection, I can only ping the server on Network 1 from the dial-up server on network 2. I can not ping the server on network 1 from any computer on network 2.

Was Configuring these servers as RAS servers the right choice? The alternative would be to configure them as Network routers.

Any input would be appreciated. Thanks

5 replies

by valachi

The alternative is the right one :-)
You have to set it up to route between the two subnets and set up a dial-on-demand route. It's straightforward - please check the Ms Windows 2000 Server documentation - especially "Planning for W 2000 in Entreprise".

by bentgellerich

Lets call both servers Corporate and Branch. There are three steps to performing this:
1. configure connection settings
-supply IP/netmask valid for the segment that connects the two routers
-provide DNS and WINS
2. configure ports to allow demand-dial connections (make sure you enable demand dial routing)-In RRAS add the interface (modem)
3. configure demand dial interfaces.
Use the Demand dial interface wizard in RRAS

IMPORTANT: for this to work properly, the dial-out credentials ofthe calling router must match the Interface name of the demand-dial interface on both sides of the connection!! Hope this helps. If you need a step by step email me

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