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Access network resources over VPN

Posted on 2006-11-13
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Last Modified: 2010-03-18
Hi

Whenever I setup a VPN connection to connect with our Small business server the only computer's file and printer resources we are able to access is the server itself.

I can ping other computers on the network and even connect using the remote desktop but I cannot connect to them to view files even using the IP referencing such as. //192.168.20.55/

The VPN seems to connect using different network addresses i.e. 169.xxx.xxx.xxx whereas our main network is on 192.168.20.xx.  Is that normal?  I assume also that the problem isn't with WINS as I am unable to view the files or printers through IP referencing?
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Question by:meagord
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Expert Comment

by:Rob Williams
ID: 17935251
Is //192.168.20.55/  a typo, or have you tried \\192.168.20.55\  
Requires the later or \\192.168.20.55\ShareName
If this works you can continue to use IP's or we can help with name resolution.
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Author Comment

by:meagord
ID: 17937080
Sorry just a typo.  I am using \\192.168.20.55\

I've been trying to sort this for hours now without any luck.  Any ideas would be appreciated.
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Rob Williams earned 500 total points
ID: 17940335
>>"169.xxx.xxx.xxx whereas our main network is on 192.168.20.xx.  Is that normal?"
I wouldn't say normal, but quite possible. If RRAS is not configured with a DHCP scope it could be.
You may want to change this. See the following to set the DHCP 'range"
http://www.onecomputerguy.com/networking/w3k_vpn_server.htm
Though you can connect to the server with 169.254.x.x, it might explain why you cannot connect to the workstations, although if that were the problem, you shouldn't be able to ping them either.

Where you are running Small Business Server you really shouldn't do the above manually, it must be done with the CEICW (configure E-mail and Internet Connection Wizard) located in the server management console, under Internet and e-mail. Start by choosing "connect to the Internet". Did you use this to create the VPN ? Very important on SBS.
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Author Comment

by:meagord
ID: 17941264
Thank you, I have now solved the problem (though I'm not 100% sure why there was a problem in the first place.

In case others are reading this with the same issue this is what I did.

In  Administrative Tools->Routing and Remote Access I switched the IP alloocations from DCHP to a static address pool within our normal local network range.  This now allows VPN users to connect to the other computer's shared files and printer by IP address (even though they could ping them before files and printing did not work.)

To allow people to browse the computer by name I entered a static entry in the WINS management console for the essential computers. (not sure if this is the best way but it does work!)

I am not sure if any of this is the correct solution as I'm a web developer and not a network engineer - there may be an underlying problem which I have simply worked around rather than fixed - but it's good enough for us now.

Thanks for your help!
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Expert Comment

by:Rob Williams
ID: 17942787
Changing the DHCP configuration repairing the access makes sense, but as suggested, I am not sure why you could ping before. As for WINS, NetBIOS names are not broadcast over a VPN as they would be a LAN, so WINS, or using an LMHosts file (not as versatile) works well.
Glad to hear you have it working.
Thanks meagord,
Cheers,
--Rob
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