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Connect to VPN through another network

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7 replies

by jcross

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I have a client who has a satelite office located within another practice. He uses their LAN to access the internet. This practice has an ISDN line and a router connected to this line.

I set up my client's laptop (WIN 98)to connect to our network throught the VPN driver. It gets to our network and trys to authenticate, but cannot return any information back.

7 replies

by Former member

Client location doesn't matter in a VPN. But you must realize that if your client is already connected to a LAN, then VPN and LAN do not work together at the same time. Have him disconnect from the LAN and then try to VPN via a dialup solution. Do alittle troublshooting: Logs? Events? Errors? Client errors?

by bthomas

I might be confused on the topology in this
setup.

I think you have an outside user trying to access network resources via a vpn. correct?

This means you are using RAS.

Make sure your server has either a public
ip or the correct ports forwarded on the router for authentication. make sure you
have the correct protocol for authentication.

Also, NOTE THIS if the laptop has the same netbios name as another computer on the remote network you WILL HAVE PROBLEMS.

by matthewballou

If it gets to your home network and through the firewall thats have the battle. Now it needs to authenticate to the domain (assuming nt/w2k). In my experience the easiest way to do that is either A: Push the client information (IP, WINS, DNS) to theremote client. (If your vpn appliance is configured to do that). If it is then plan b: Configure your remote users TCP/IP properties to relect your home systems workgroup or Domain info. Also configure the username and password of the remote machineto reflect the username/password of the domain login. Thus allowing for pass through authentication. This last step always seems to solve the majority of problems. Change the username and password to reflect your home domains username/pwd settings.

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