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Shared VPN and General Internet access at Same Time

Posted on 2007-04-08
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Last Modified: 2010-04-12
Is it possible to have a VPN tunnel AND general internet access on an ADSL line at the same time.

I'm a solution service provider and wish to establish a VPN tunnel to one of my clients over their existing ADSL Intenet line which they use for email and web browsing.

Looking at using Linux for VPN client and servers and firewall/router could be DLink but could easily change if necessary (but need to keep router/firewall easy to configure and not too expensive to purchase).
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Question by:davidfy
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Rob Williams earned 125 total points
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Yes. You need to enable "split-tunneling". This done in different ways with different VPN solutions. By default a VPN connection isolates the VPN from the local network and therefore disables local access to the Internet. By enabling split-tunneling you can use both services simultaneously. However, keep in mind this is a security concern. When split-tunneling is enabled you are exposing the remote network to potential attacks from the local network.

Cannot advise with Linux client but to enable with the Windows client go to:
control panel | network connections | right click on the VPN/Virtual adapter and choose properties | Networking | TCP/IP -properties | Advanced | General | un-check  "Use default gateway on remote network"

On other systems such as Cisco's split-tunneling has to be enabled on the VPN router.

Linksys RV042 is very easy to configure, offers to client solutions, including the Windows client, affordable, and very dependable
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by:Rob Williams
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Thanks davidfy.
Cheers !
--Rob
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