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Is there a way to prevent a device from writing itself into the top of the Bind Multi-String in the registry?

Posted on 2010-11-08
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Last Modified: 2012-05-10
Hi Everyone,

I have a CDU-680 C-motech modem on a Windows 7 box. When I use it to connect to the Internet and then try to use my software VPN, the modem retains itself as the primary DNS. So, I can't resolve DNS names on the internal network.

I looked at the Adapters and Bindings order in Advanced Settings on the control panel. I believe the modem is listed last and is called Remote Access connections. In the registry, I manually changed the bind order to put my VPN connection on top, but when I reconnect the modem, it writes itself to the top of the Bind list (HKLM\System\CurrentControlSet\services\Tcpip\Linkage).

Does anybody know how I can stop the modem from writing itself to the top of the bind list? For giggles, I did make an entry for it in the BindSave String at the bottom of the list to no avail.

Thanks!
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Question by:jennx
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Assisted Solution

by:F Igor
F Igor earned 2000 total points
ID: 34088886
You can modify the connection properties for the 3g modem,
under Network->TCP/IP / advanced
and uncheck the option "use default gateway"

Go to control panel, network connections and in the "advanced" section you can setup the order of network interfaces,



use this command to remove the Gateway as default:
route delete 0.0.0.0  ip.gateway.3gmodem


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Accepted Solution

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jennx earned 0 total points
ID: 34095059
Fraigor,

That won't work because then they can't get to the internet. However, that made me think of another workaround--making the DNS on the 3g modem static. Put one of the internal dns addresses in as well as an external one provided by the ISP. Not the best solution, but good enough for now.

Thanks!
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Author Closing Comment

by:jennx
ID: 34130221
Fraigor got me on the right track for setting DNS directly on the card.
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