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Can I disconnect from my ISP?

Can I disconnect from my ISP when I have successfully established a vpn connection to a remote computer. Will it not be disonnected with the disconnection of my ISP from my computer?

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silapa
Asked:
silapa
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1 Solution
 
pseudocyberCommented:
VPN runs over the Internet (usually).  If you lose your Internet connection, you lose your VPN connection.

VPN is simply a way to authenticate yourself to a remote site and once you are authenticated, a way to encrypt your traffic as it tunnels through a third party network (like the Internet).
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funkusmunkusCommented:
you'd loose the VPN.
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ispeed-jeremyCommented:
Your ISP provides your bridge to your VPN, no ISP, no VPN, if your paying for DATA from your ISP, be concious that when you iniate your VPN it doesn't set your systems default route (0.0.0.0) to the address on the VPN network, as both your VPN and Internet traffic would then be routed from your VPN site, which will both add load on the network on the VPN side, plus all your Internet traffic will result in more data being transferred than requried, especially if your VPN is encryped.
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bbaoIT ConsultantCommented:
hi silapa, i am not sure why you want to keep VPN connection while disconnecting the link to ISP, anyway, if you really want to do it, you may consider to delete those *unnecessary* routes to ISP.
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andreas_beCommented:

As the first comment stipulates, VPN Connections resides over ISP Connections so by disconnecting to your ISP Will automaticaly disconnect your VPN .!
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ksquareCommented:
I'm presuming you may be asking because you want to limit your machines exposure to the Internet and just get everything over the safer encrypted vpn tunnel from a presumably more secure corp. network.

In which case the vpn admin can disable split tunnelling so when the vpn is active your machine will only send/receive through the tunnel.  That includes any traffic that has to come from or go to the Internet.

eg.  while the vpn is active your machine is not directly accessible outside of the tunnel.
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bbaoIT ConsultantCommented:
> disable split tunnelling?

ksquare, could you please explain more on it? thanks.
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ksquareCommented:
we use Cisco vpn concentrator and clients.  On the concentrator when a group is defined we can force this setting.  example.  We can leave it so the client only sends internal network traffic through the vpn and any other traffic goes straight out the internet connection.  Split Tunnelling.

I set it up so when the tunnel is active ALL traffic goes through the tunnel including internet traffic.  That way it also still has to go through our corporate firewall and filtering software.

It is also possible in the Cisco setup to list specific networks that the client can route to directly such as their home lan.  Again, for security reasons, when they're on the corporate lan via vpn thats all they have access too.  So another home machine can't relay through.

Kevin
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pseudocyberCommented:
Silapa, did we answer it for you - No.
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silapaAuthor Commented:
Yes, youve answerit all. Thanks
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bbaoIT ConsultantCommented:
silapa, if so please close this question by accept one or more helpful comments above. thanks,
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