Windows 2008 R2 VPN Server issue

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18 Oct 2002
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Nr Wrexham, North Wales
Hi all,
I've ran in to a hurdle with setting up VPN on my new 2008 R2 server. Originally I had windows 7 acting as a PPTP server which served its purpose but have now decided to move to 2008 server as I wanted L2TP/Ipsec for added security, amongst other things.

I had VPN set up in Windows 7 so that all internet and local network traffic on the client routed through my VPN server for added security when required.

2008 R2 VPN setup has been giving me a headache from day one, I've almost got it working but not quite. Basically when the client connects I receive a VPN LAN IP from a set pool of IP addresses which I have designated and which are on the same subnet as my home network. When I connect though I can no longer access the internet. I've since discovered that it's because DNS servers aren't being supplied upon connection, manually entering the DNS server in to the VPN client settings enables the internet connection to operate normally but this isn't convenient.

I've no idea why this is happening, looking around on the internet it appears that the RRAS server is supposed to supply the same DNS settings from the adapter to which it's assigned to (in this case it's my wireless adapter) but frustratingly this isn't happening.

The windows 7 VPN server passes the DNS IPs fine across upon making the connection so I am really confused, is the Windows 7 VPN server doing something in the background which I have to set up in 2008?

I'm pretty sure I've tried most things without success.

Sorry if I've not explained things too well, I'm not really a pro at this kind of thing.

I'm at my wits end so if anybody could give me a bit of help I'd be very grateful!
 
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Have you got dns set up an configured on the 2k8 box??

If not, set up dns and add forwarders to your ISP. Then when the connection comes in it will use the server dns which will have the relevant forwarders
 
I set up DNS and set up a forwarder for my ISP dns servers but they are not being passed through to VPN clients. I'm not entirely sure this is the issue though because I've read that if you specify a VPN IP pool within the same subnet as the internal network it's supposed to supply the DNS IPs set on the server NIC to the client, there seems no explanation as to why they're not being passed on though and it's really frustrating!!

Windows 7 worked fine in this regard, it passes through DNS server IPs with no issue. I'd go back to Windows 7 but I'd much prefer utilising L2TP if I can get this damn thing working. :(
 
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