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VPN Dial on demand & BranchCache

Posted on 2010-09-07
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Last Modified: 2012-05-10
We have 3 sites of single PC's (running Win 7 Pro/Enterprise) and are looking at a way of dialling into the office on demand.

The 'easiest' way would just be to connect into the system by manually clicking onto the VPN dialup connection, however if there was some way to automate this it'd be great.

Something similar to how RRAS background dials into another site when it requires access to a (mapped) different subnet for example.

We want the connection to fall off as requred (disconnect after X minutes of activity) to ensure unneeded bandwith isn't wasted. I have already disabled the gateway option in the VPN dialup to inhibit all traffic passing through the main office site (internet traffic for example).

Also as part of this we are looking at BranchCache for the offsite PC's to centralise data. Most of it is documents but so far for Windows 7 the information available is vague.

If anyone could suggest ideas or assistance on how to allow automatic dial-on-demand VPN access as well as any info on BranchCache that'd be great.
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Question by:kiwistag
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bgoering earned 500 total points
ID: 33772234
Sounds like the DirectAccess feature of Windows 7 and 2008 R2 (http://www.microsoft.com/windowsserver2008/en/us/directaccess.aspx) might be what you are looking for. It is a bit of a pain to get set up (I have only played with it in a lab environment), but works well.

Another possibility is IPSec tunneling as if each user was a "site" rather than a single PC. Much would depend on the infrastructure (routers and firewalls) in use at both ends. Typically a tunnel can be "demand dial" and have an inactivity timeout associated with it.

As far as branch cache - that really only makes sense where you have multiple users at each remote site. It really wouldn't do much good to implement it at the central location.

Good Luck
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by:kiwistag
ID: 33805586
Thanks for that - I'm on leave at the moment so will try this out when I get back :)
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