#NAT #NATPMP #RFC6886
NAT Port Mapping Protocol (NAT-PMP)
https://www.rfc-editor.org/rfc/rfc6886.html
https://en.wikipedia.org/wiki/NAT_Port_Mapping_Protocol

#PCP #NAT #RFC6970
Port Control Protocol
https://www.rfc-editor.org/rfc/rfc6970.html
https://en.wikipedia.org/wiki/Port_Control_Protocol