Howto change network location type unter Win2008R2

Hi,

my (web)server has two network adapter. One is public and direct attached to
the internet. the other adapter is connected to a router with private
adresses.
Since I have more offices I added some more routes with route add
..172.17.0.0 mask 255.255.0.0 192.168.1.254

Now the Internet connection is recognized correct as public. I can change
the Icon and the name.
The other connection is shown as unidentified Network. I can't change the
name, Icon and even worse the location type.(firewall!)


How can I change the location type for this connection manually.


Regards,

Michael