Regarding Cobbler CLI, there is no --bootproto option in cobbler system add, you are confusing (1) the kickstart option with (2) the Cobbler system's network interface option. There is a --static option in cobbler system add which sets the boolean I mentioned before. However, it could be changed after adding the system, that's why I asked you to check its current value.
Regards, Alan Evangelista
--static=1. Sorry about that.
Chris.