DCP Identify not respondend when DCP Boundary configured

When the device is configured to be a DCP boundary using PDPortDataAdjust, the device does not respond to DCP Identify frames received on the corresponding port anymore. When both ports are configured with this setting the device is practically impossible to reach for any controller or engineering tool. (When the mac address is known it might be still possible to send a ResetToFactory frame to the device using some tool)
According to specification the DCP boundary shall be applied to outgoing frames only. That means, the DCP Multicast Frames shall not be forwarded anymore but still handled locally.