Port Control Protocol (PCP) Extension for Port-Set Allocation
Qinbo Sun, M. Boucadair, Shyamala Sivakumar, Cathy Zhou, T. Tsou, Simon Perreault · 2016
In some use cases, e.g., Lightweight 4over6, the client may require not just one port, but a port set. This document defines an extension to the Port Control Protocol (PCP) that allows clients to manipulate a set of ports as a whole. This is accomplished using a new MAP option: PORT_SET.