[vpn-help] DNS Configuration

[Matthew Grooms]

On 6/25/2010 11:34 AM, Stéphane DAGUET wrote:
> Hello,
>
> Using vpn client 2.1.5 with a manual DNS configuration, I encounter this
> problem:
>
> - When I connect, the DNS in the site configuration is configured in the
> network card ip properties. All works fine
>
> - When I disconnect, the network card DNS configuration stay the same,
> or 255.255.255.255:
>
> Description: cid:image001.png at 01CB1474.8F3E55A0
>
> · /How can the VPN client push back the original DNS after disconnection ?/
>
> · /Is there another way to explore to solve this problem ?/
>
> / /
>
> Best regards
>

Hi Stephane,

I tried to reproduce this bug with every combination of DNS setting I 
could think of, but was not able to do so. I need some more info so I 
can investigate the problem. Please locate your network adapter's IP 
configuration key using regedit. It's under the following prefix ...

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Interfaces

... You can locate it by matching your adapter IP address to the the 
DhcpIPAddress REG_SZ value. For example, if my local IP address is 
10.1.2.88, my adapter key might looks like this ...

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Interfaces\{22B6DF7E-2E1C-4E2F-9B6A-6D10DFB7228C}
\
  ...
  DhcpIPAddress | REG_SZ | 10.1.2.88
  ...

Once you do, could you please send me three screen shots ( in a private 
email ) of all values in that key (1)before, (2)during and (3)after the 
VPN connection. You can refresh the values in regedit by pressing the F5 
key between screen shots. The values should change when you connect and 
again after you disconnect.

With this information, hopefully I will be able to duplicate your exact 
setup, reproduce the issue and then find a solution for the problem.

Thanks,

-Matthew