Different networks during and after installation

Hi there, I got cobbler up and running, work perfect. After going to a more production ready setup I detected some problems. What I want to is the following: 1. Having the cobbler server in a separate install network 2. Getting an temporary IP from cobblers, DHCP 3. System installation by PXE 4. Register to a RHN Satellite 5. yum -y update 6. Configuring production Network with static IP 7. Power down the system 8. Unplug install network cable and plug in production network cable I changed the DHCP template to disable IP reservation successfully, so up to step 3 all went fine. For tests with Centos I skip step 4 for the moment. It seems that the pre_install_network_config snippet is configuring the network too early away from the DHCP settings which ends up in no network connectivity causing yum update failing. Any idea how to change the snippets and/or ks template to get the above steps done? Thanks, Luc