NDMP server ports
The port requirements to backup and restore an NDMP server are as follows:
TCP port 10000 must be open from the media server (DMA) to the NDMP filer (tape or disk) for all types of NDMP operations; local, remote, and 3-way.
The NetBackup SERVER_PORT_WINDOW must be open inbound from the filer to the media server for remote NDMP. It must also be open for efficient catalog file (TIR data) movement during local or 3-way NDMP.