Re: Stop DHCP address from registering in DNS

"JordanN" <> wrote in message news:...
> All our laptops have both the wired and wireless connections. When the
> users leave on their wireless adapters, many times the wireless IP is what
> shows up in much of our network management software packages.
>
> I have configured the wireless system to now be on a different subnet range
> (Wired on 192.168.1.x and Wireless on 192.168.2.x) so now I can clearly see
> if I am managing through a wireless adapter or not, but I would like to
> configure my DHCP server so that the wireless adapters don't register in
> DNS, but the wired ones do. I also want to do this without manually
> configuring each PC.
>
> Is there something I can put in the 192.168.2.x DHCP scope to prevent this
> IPs from registering in DNS so I only have the wired IPs?
>


DHCP will give out IP addresses. By default, it will register all or nothing, nor can registration be set by subnet.

To stop that interface from registering, you would have to go into the wireless interface on the laptops and uncheck "register this connection" just for that interface. You can also create a script using the netsh command to run as possibly a startup script, logon script, or a script that will search all laptops (based on whatever criteria you would like to use, such as laptop name) to uncheck that setting, or even a regini script. However, doing it that way you would need to know the interface ID, which can vary from laptop manufacturer and within different types of wireless NICs each manufacturer may use.

Take a look at this article that explains the registry settings related to DNS registration.

http://support.microsoft.com/kb/246804



--
Ace

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Ace Fekay, MVP, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE & MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services

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