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Connecting to server via VPN - need to add router for safety

I am currently able to use a VPN to connect to a server that has a fixed IP address with no router. I want to add a router (Netgear WNDR3700v3) between the Internet and the workstation. I know basic networking, but am not sure what I need to do (1) on the server I am connecting to, (2) on the workstation I am connecting from, and (3) on the router. Both the workstation and server are Windows XP, but I will be replacing the server with a new server running Server 2008R2.The switch needs to be as transparent as possible, with as little downtime as possible. I would appreciate some advice as to the settings I need as well as the best way to handle this switch. Thanks in advance for your advice and help.
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geistman
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geistman
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3 Solutions
 
John HurstBusiness Consultant (Owner)Commented:
I recommend you get a good VPN router (Cisco Linksys or Juniper). I prefer IPsec because you can get a good client (NCP Secure Entry, or ShrewSoft for less demanding situations). Either way, the connection will be to the VPN routter and you can change servers at will. Server become just a box on the network. I do the above for clients and it works very well.

... Thinkpads_User
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geistmanAuthor Commented:
My boss already purchased and opened the Netgear router, so I have to use this. Can you provide more specifics about the settings I will need; this is not my specialty so I need some assistance. thanks.
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John HurstBusiness Consultant (Owner)Commented:
Netgear is consumer gear and I do not use it. I have sample configurations for Cisco Linksys (RV0xx) and some Juniper but not Netgear.

If you need to use the Netgear, best to get some local consulting assistance. VPN has a number of settings and you need to get them all correct to work.

Perhaps someone else here has Netgear experience.

... Thinkpads_User
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andrew1812Commented:
Can you explain your current topology ?

Are you connecting to the VPN server from the workstation through the internet ?

Is the VPN server directly exposed to the internet with the public IP ?

Is your work station exposed to the internet directly ? If yes does it have an internet connection ?

Do you want to connect to the VPN server from the work station through the router now ?
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geistmanAuthor Commented:
Hi Andrew --

The server will be  behind a new ASUS RT-N66U router (instead of the Netgear router mentioned previously). Right now it is directly attached to the Internet with a working VPN using what is built into  WinXP. We will be replacing one server with a Win 7-based server and adding a Win 2008R2 server. Attached is a picture of the basic topology I want to set up.

Thanks for any additional info you can provide.
vpn.jpg
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andrew1812Commented:
Hello geistman

You need to setup VPN pass through on the ASUS router  ( Based on the Windows VPN type you select - L2TP/IPSEC, PPTP etc. ). Setup a private ip address for the new VPN server ( Windows 7). Map the IP address with the pass through feature on the router. The VPN server to which connection needs to be initiated from the workstation should be the public IP address of the router.
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geistmanAuthor Commented:
Thanks.. Is one VPN type better -- more secure, easier, ... -- than another? Do I need a different client on the workstations that the standard built-in Windows VPN? And do you happen to have any experience with the Asus RT-N66U to identify the specific settings I need to make for this to happen? (I know I am pushing my luck.)
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andrew1812Commented:
The native Windows VPN client should suffice. Log into the web console of ASUS and you should see the feature IPSEC pass through.

I don't see any links on the internet for setting up the feature although the specification document confirms the availability of the feature.
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