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DNS lookup over VPN with Netgear Router

Posted on 2009-04-30
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I have a NETGEAR ProSafe VPN Wireless ADSL Gateway DGFV338 which I've set up a VPN back to the office on.  Problem is, when users use this router, they can't see my servers here as DNS isn't working.  
I've tried configuring the Router to use my servers here for its DNS lookups but it doesn't work

Anyone have any ideas?

Thanks
George
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Question by:wildminduk
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by:blue-screen
ID: 24271832
Once they VPN, their DNS information is still the same as before the VPN, that is, they are using the ISPs DNS servers.

The PCs have to be asking the right DNS serevrs for information.

Also, if RFC1918 addressing is used, the DNS lookups may be returning the wrong address (outside instead of inside address).  Do the DNS lookups fail or return the wrong address (test with NSLOOKUP)?
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by:wildminduk
ID: 24273381
when I was onsight i was trying to ping the servers at HQ and they failed.
I know the clients have to be asking the right servers for the info, how do I make the router go to the servers at HQ, at the other end of the VPN for DNS lookups?
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blue-screen earned 375 total points
ID: 24275117
Well, you can't do what you want unless you change the DNS settings on the clients PCs.  The firewall cannot influence what servers the PCs are using to do DNS lookups.

What DNS servers are the PCs using?

The ususal way to fix this problem is to run a local DNS server that the PCs point to which can process local DNS lookups as you see fit.  If the PCs use the ISPs DNS server, they will only see IP addresses for names that are published to the internet.
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