VPN using Vista to XP Professional

By nigel_wager ·
I have been asked by a company to establish a VPN for one of their staff.
Their office has a peer-to-peer network with one computer set aside with all the files/folders on it. This computer has XP Professional installed. I have set up an incoming VPN connection to it. They have a Thomson Speedtouch router installed and I have opened ports, PPTP 1723 and GRE 47 and pointed these ports to the appropriate computer IP address. I have established an outgoing test connection on my computer at home to connect to the host and when I try to connect everything goes very well; The connection finds the router, passes me on to the computer which verifies my username and password and tells me I am connected. After that, I cannot see the host on my network and, of course, cannot see any files. Am I looking in the wrong place? I feel I am 95% of the way there but just need assistance with the final 5%.
The outgoing connections have been tested with Windows Vista Ultimate and Windows 7 RC Ultimate on my desktop and Vista Home Premium and Windows 7 RC Ultimate on my laptop. All easily make the connection but I cannot see folders with any connection. Can you help at all?

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DNS Suffix

by Nimmo In reply to VPN using Vista to XP Pro ...

You will need to add the local DNS server(network you VPN into) as a DNS suffix into your remote computer.

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DNS Suffix

by nigel_wager In reply to DNS Suffix

Many thanks for your reply. I have been back to the company today and tidied up the network which was littered with spurious DNS server addresses (done by one of the ex staff). All 10 computers now have IP and DNS server addresses controlled by DHCP from the router except the 'host' which I gave a static IP address. Alas, this has had no noticeable effect; I can still connect to the host but cannot see any files. Should I be mapping the host folder or is it enough to see it in Network Places?

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But did you add the suffix to the remote PC?

by Nimmo In reply to DNS Suffix

Just so you know you don't need to add any dns suffix's to any local domain computers because they are getting DNS locally provided by your DNS server so they are able to resolve domain hosts.

The reason you need to add the suffix into the remote computer is because the remote computer needs to resolve domain addresses.

If the remote has only got its local DNS server addresses then you're not going to be able to resolve the domain because the remote computers DNS servers have no knowledge about the domain.

Right click on the network connection and select properties>high light TCP/IPv4>click properties.

You don't need to setup a static IP address just go to the advanced button at the bottom of the page.

Click the DNS tab and select the radio button that says "append these dns suffixes" and then enter the details i.e. domain.local.

Hope this makes sense if you're unsure let me know.

One other thing I forgot to mention is that if this is a machine that is a member of the domain then you shouldn't need to add a suffix.

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But did you add the suffix to the remote PC?

by nigel_wager In reply to But did you add the suffi ...

Nimmo. Many thanks for replying again. As you will be aware, networking is not my forte (I concentrate on building, repairing and upgrading computers!). I can understand basically what you are trying to tell me but I do not know where to get the DNS suffixes from. The only place I know of with DNS addresses is the router itself. Am I right in thinking this? Thank you so much for your efforts.

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