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Vista - Virtual PC cannot share network adapter when VPN is connected

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Old 08-06-2008   #1 (permalink)
MattG


 
 

Virtual PC cannot share network adapter when VPN is connected

My VPC is using the host PC's network adapter for network connection and all
is working OK. As soon as I connect my Cisco VPN client on the host PC the
VPC loses all network connectivity, even local network connection is lost
(can't ping router, other PC's etc).
Is there a way to configure the VPN to allow VPC to share the network
adapter when the VPN is connected?

My System SpecsSystem Spec
Old 08-06-2008   #2 (permalink)
Bill Grant


 
 

Re: Virtual PC cannot share network adapter when VPN is connected



"MattG" <MattG@xxxxxx> wrote in message
news:7C6B208D-63E7-483F-956D-2E96475799CB@xxxxxx
Quote:

> My VPC is using the host PC's network adapter for network connection and
> all
> is working OK. As soon as I connect my Cisco VPN client on the host PC
> the
> VPC loses all network connectivity, even local network connection is lost
> (can't ping router, other PC's etc).
> Is there a way to configure the VPN to allow VPC to share the network
> adapter when the VPN is connected?
That is pretty much the expected behavior. The VPN client will take over
your network connection and route everything through the VPN.

With the Microsoft VPN client you can modify this, but I am not aware of
any way to do it with the Cisco client.



My System SpecsSystem Spec
Old 08-07-2008   #3 (permalink)
MattG


 
 

Re: Virtual PC cannot share network adapter when VPN is connected

Thanks Bill - its the answer I was expecting but didn't want :-(

"Bill Grant" wrote:
Quote:

>
>
> "MattG" <MattG@xxxxxx> wrote in message
> news:7C6B208D-63E7-483F-956D-2E96475799CB@xxxxxx
Quote:

> > My VPC is using the host PC's network adapter for network connection and
> > all
> > is working OK. As soon as I connect my Cisco VPN client on the host PC
> > the
> > VPC loses all network connectivity, even local network connection is lost
> > (can't ping router, other PC's etc).
> > Is there a way to configure the VPN to allow VPC to share the network
> > adapter when the VPN is connected?
>
> That is pretty much the expected behavior. The VPN client will take over
> your network connection and route everything through the VPN.
>
> With the Microsoft VPN client you can modify this, but I am not aware of
> any way to do it with the Cisco client.
>
>
>
>
My System SpecsSystem Spec
Old 09-03-2008   #4 (permalink)


Vista Ultimate x64 SP1
 
 

Re: Virtual PC cannot share network adapter when VPN is connected

MattG - in case you haven't thought of it yet just create a new VPC for each connection that will require a VPN. I have multiple VPCs set up, one for each client, running different VPNs (Cisco VPN client, Cisco SSL VPN, Citrix, Microsoft VPN, etc.) They all co-exist peacefully since they are running in their own VPC.
My System SpecsSystem Spec
Old 08-10-2009   #5 (permalink)


Guest: WinXP, Host: WinXP
 
 

Re: Virtual PC cannot share network adapter when VPN is connected

Is it indeed possible to configure the VPC and/or the host so that the VPC (MS Virtual PC 2007) can share the VPN netwerk adapter on the host or is it not possible ?

That is.

I want to start my host (WinXP).
Start VPN on host.
Start VPC (WinxP).
Browse from the VPC to company internal and external sites by means of "sharing" the host vpn connection.
Connect from the VPC to company internal servers (eg. version management servers) by means of "sharing" the host vpn connection.

Is this possible or not and if yes what are the steps to get this to work ?

I've spend hours on this, unfortunateley without getting a step further.

Kind regards,
EDH
My System SpecsSystem Spec
Old 08-10-2009   #6 (permalink)
Bo Berglund


 
 

Re: Virtual PC cannot share network adapter when VPN is connected

On Mon, 10 Aug 2009 11:43:02 -0500, EDHSDH <guest@xxxxxx-email.com>
wrote:
Quote:

>
>Is it indeed possible to configure the VPC and/or the host so that the
>VPC (MS Virtual PC 2007) can share the VPN netwerk adapter on the host
>or is it not possible ?
>
>That is.
>
>I want to start my host (WinXP).
>Start VPN on host.
>Start VPC (WinxP).
>Browse from the VPC to company internal and external sites by means of
>"sharing" the host vpn connection.
>Connect from the VPC to company internal servers (eg. version
>management servers) by means of "sharing" the host vpn connection.
>
>Is this possible or not and if yes what are the steps to get this to
>work ?
>
>I've spend hours on this, unfortunateley without getting a step
>further.
>
You need to install VPN software *inside* the virtual machine itself
and then connect a VPN tunnel between the virtual machine and the
target network.
Normally VPN tunnels cannot be shared (might depend on the VPN
software, but all I have used behave this way).
I have several guests with VPN capability and it works just fine...

Just consider a virtual machine as any other PC on your network when
thinking about what you may and may not do, it will usually give you
the right answer.

--

Bo Berglund (Sweden)
My System SpecsSystem Spec
Old 08-10-2009   #7 (permalink)
d d


 
 

Re: Virtual PC cannot share network adapter when VPN is connected

Bo Berglund wrote:
Quote:

> On Mon, 10 Aug 2009 11:43:02 -0500, EDHSDH <guest@xxxxxx-email.com>
> wrote:
>
Quote:

>> Is it indeed possible to configure the VPC and/or the host so that the
>> VPC (MS Virtual PC 2007) can share the VPN netwerk adapter on the host
>> or is it not possible ?
>>
>> That is.
>>
>> I want to start my host (WinXP).
>> Start VPN on host.
>> Start VPC (WinxP).
>> Browse from the VPC to company internal and external sites by means of
>> "sharing" the host vpn connection.
>> Connect from the VPC to company internal servers (eg. version
>> management servers) by means of "sharing" the host vpn connection.
>>
>> Is this possible or not and if yes what are the steps to get this to
>> work ?
>>
>> I've spend hours on this, unfortunateley without getting a step
>> further.
>>
>
> You need to install VPN software *inside* the virtual machine itself
> and then connect a VPN tunnel between the virtual machine and the
> target network.
> Normally VPN tunnels cannot be shared (might depend on the VPN
> software, but all I have used behave this way).
> I have several guests with VPN capability and it works just fine...
>
> Just consider a virtual machine as any other PC on your network when
> thinking about what you may and may not do, it will usually give you
> the right answer.
+1 to what Bo said. I have the same - a VPN connection in each VM.

If you're having problems with that, like I did a while back where I
could only ever have one VM anywhere within my network active at a time
regardless of whether it was a physical machine or a VM, then you need
to get a newer router. My old one(s) (there were two of them) both
allowed only one VPN conn. at a time, but my new one had no such problem.
My System SpecsSystem Spec
Old 08-10-2009   #8 (permalink)
Bo Berglund


 
 

Re: Virtual PC cannot share network adapter when VPN is connected

On Mon, 10 Aug 2009 21:20:03 +0200, d d <go_on_try_and_sp@xxxxxx_me.com>
wrote:
Quote:

>Bo Berglund wrote:
Quote:

>> On Mon, 10 Aug 2009 11:43:02 -0500, EDHSDH <guest@xxxxxx-email.com>
>> wrote:
>>
Quote:

>>> Is it indeed possible to configure the VPC and/or the host so that the
>>> VPC (MS Virtual PC 2007) can share the VPN netwerk adapter on the host
>>> or is it not possible ?
>>>
>>> That is.
>>>
>>> I want to start my host (WinXP).
>>> Start VPN on host.
>>> Start VPC (WinxP).
>>> Browse from the VPC to company internal and external sites by means of
>>> "sharing" the host vpn connection.
>>> Connect from the VPC to company internal servers (eg. version
>>> management servers) by means of "sharing" the host vpn connection.
>>>
>>> Is this possible or not and if yes what are the steps to get this to
>>> work ?
>>>
>>> I've spend hours on this, unfortunateley without getting a step
>>> further.
>>>
>>
>> You need to install VPN software *inside* the virtual machine itself
>> and then connect a VPN tunnel between the virtual machine and the
>> target network.
>> Normally VPN tunnels cannot be shared (might depend on the VPN
>> software, but all I have used behave this way).
>> I have several guests with VPN capability and it works just fine...
>>
>> Just consider a virtual machine as any other PC on your network when
>> thinking about what you may and may not do, it will usually give you
>> the right answer.
>
>+1 to what Bo said. I have the same - a VPN connection in each VM.
>
>If you're having problems with that, like I did a while back where I
>could only ever have one VM anywhere within my network active at a time
>regardless of whether it was a physical machine or a VM, then you need
>to get a newer router. My old one(s) (there were two of them) both
>allowed only one VPN conn. at a time, but my new one had no such problem.
Right! Good spot!
I have used D-LINK routers since many years and they all managed
multiple VPN connections. But I know that Netgear routers had problems
in this area and there are other brands too....

--

Bo Berglund (Sweden)
My System SpecsSystem Spec
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