Config manager client push installation is an easy method for gradually installing config manager clients in your environment.
Link can be found here : http://technet.microsoft.com/en-us/library/gg712298.aspx
Make sure you use AD extension of a set of ADM files in order to publish post installation properties for the SCCM client.
Step 1 create a policy for Specifying the Microsoft Update service location
Step 2 activate the software-update based client installation in SCCM
Overview -> Site configuration -> Sites -> Client Installation Settings
Verify in wcm.log if the config manager package was correctly publised.
Step 3 Observe the client
You can trigger the update cycle by running wuauclt /detecnow.
Then verify the windowsupdate.log
At first I noticed that no update was applicable
Now this was apparently because my test machine was in a notification license period.
So I reactivated using our kms server
And the client was available and installing
Required parameters are discovered in ADS.
Now this saves you from specifying username/password for install and opening up a bunch of RPC ports.
Update ! Make sure you do not set the Configure Automatic updates to disabled in computer policy otherwise the installation will not take place.