You do NOT need to configure the AMT 3.0 VLAN ID setting to manage clients deployed in a VLAN. The VLAN ID setting is used when you want to place all AMT traffic in a separate VLAN from the host OS. Separated traffic is not a typical configuration and would likely not be needed for your POC.
Thus will be good, i dont need to do extra settings for the AMT within VLAN. thanks.-Jen