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Two VPNs on ONE Server?

 
 
Ted
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      01-02-2006, 05:56 PM
I have a VPN server at my organization running Windows Server 2003 and RRAS
for VPN. I want to add a second VPN interface that will accept VPN
connections on a different NIC/IP, but can't find any documentation on doing
so. Is it because it's impossible?
 
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Bill Grant
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      01-02-2006, 11:54 PM
It should just work. As a test, try making a VPN connection from a local
LAN machine to the server's private NIC. It should connect without any
problem.

Ted wrote:
> I have a VPN server at my organization running Windows Server 2003
> and RRAS for VPN. I want to add a second VPN interface that will
> accept VPN connections on a different NIC/IP, but can't find any
> documentation on doing so. Is it because it's impossible?



 
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Ted
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      01-03-2006, 04:41 PM
Yeah, I already tested it with an external PC and it didn't work. Windows
2003 complained about having two different gateways on two different NICs,
but I can't see how to configure it otherwise.

Sorry, I should have mentioned that in my opening post: the two different
VPN interfaces will have completely different IP information. It's not as if
I'm just using x.x.x.1 and x.x.x.2 from the same subnet; they're on
completely different DSL lines.

"Bill Grant" wrote:

> It should just work. As a test, try making a VPN connection from a local
> LAN machine to the server's private NIC. It should connect without any
> problem.
>
> Ted wrote:
> > I have a VPN server at my organization running Windows Server 2003
> > and RRAS for VPN. I want to add a second VPN interface that will
> > accept VPN connections on a different NIC/IP, but can't find any
> > documentation on doing so. Is it because it's impossible?

>
>
>

 
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Bill Grant
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      01-03-2006, 09:53 PM
That is a completely different problem. A machine can have only one
active default gateway, not one per interface. If these connections are
coming to you from the Internet, there is no way that you can have two
interfaces active.

If one of these connections is coming from a known set of addresses
(such as office or department of your firm) you could get it working by
using static addressing. But if both interfaces are connecting to the public
Internet, it will not work.

Ted wrote:
> Yeah, I already tested it with an external PC and it didn't work.
> Windows 2003 complained about having two different gateways on two
> different NICs, but I can't see how to configure it otherwise.
>
> Sorry, I should have mentioned that in my opening post: the two
> different VPN interfaces will have completely different IP
> information. It's not as if I'm just using x.x.x.1 and x.x.x.2 from
> the same subnet; they're on completely different DSL lines.
>
> "Bill Grant" wrote:
>
>> It should just work. As a test, try making a VPN connection from
>> a local LAN machine to the server's private NIC. It should connect
>> without any problem.
>>
>> Ted wrote:
>>> I have a VPN server at my organization running Windows Server 2003
>>> and RRAS for VPN. I want to add a second VPN interface that will
>>> accept VPN connections on a different NIC/IP, but can't find any
>>> documentation on doing so. Is it because it's impossible?



 
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