Sure, you may want to use netsh command plus scheduler.
--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
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"NetGear" <(E-Mail Removed)> wrote in message
news:ul34U%(E-Mail Removed)...
> Hi,
>
> I'm building a centralized backup system to our datacenter. The backup
> server must be able to back up also the servers in the DMZ and I have a
> dedicated backup network to use. The backup server resides in our
> corporate LAN and it is also connected to the backup network. The DMZ
> servers are also connected to the backup network. So I can backup servers
> in both the corporate LAN and in the DMZ.
>
> Hovewer, I don't want that the network connection between the backup
> server and the DMZ servers in is always open. Is it possible to schedule
> the corresponding network interface in the DMZ servers to start and stop
> with a script? These servers are all Windows 2003 Standard edition.
>
>