Administrators often stumble upon configuration issues that stump them, and it's not unusual to feel stress when a problem persists. In fact, that's normal. Luckily, there's no shame in asking for help. One TechRepublic member did, and he found the answer he sought in TechRepublic's Forums.
TechRepublic member Mike posted a note in the NetAdmin Republic Forums seeking assistance with a VPN configuration issue he was experiencing:
"I recently set up a RAS server. The server worked fine until I installed the Virtual Private Network, which included the Point-to-Point Tunneling Protocol (PPTP).
"I can still dial into the RAS server and browse the network. However, I cannot ping any of the IP addresses on the network. When I look at the server to see which protocols are being used, it shows only NetBEUI and not TCP/IP or IPX/SPX. Before I put VPN on the server, I could see the other protocols were being used.
TechRepublic member Ashit wrote in with the answer. Here’s the reply, which was worth 150 TechPoints:
"Installing a VPN does not remove TCP/IP from the server. To connect to the VPN server, you need TCP/IP on BOTH the RAS server and client. So, I assume you can ping from the NT server to any PC on your local LAN.
"Now, if you are talking about pinging from your dial-in PC (remote client), then it is possible that you did not negotiate the TCP/IP protocol when the remote client (PPTP client) dialed in to the NT server.
"Check the Properties of your dial-up networking connection on the remote PC and ensure that you have TCP/IP installed. For this to work, your RAS server should be set up to negotiate TCP/IP for dial-in users and other protocols, including NetBEUI, if you want.
"This is a huge topic, but in short, make sure that when you dial in to your NT server, you see that the TCP/IP protocol is negotiated. Then, when you ping from your remote client to the NT network, the ping request will travel over the Internet."
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