Using PCP to Reveal a Host behind NAT
France Telecom
Cisco
Cisco
Cisco
This document describes how to use PCP to retrieve the identity of a host behind a NAT. Two use cases are discussed and the PCP applicability is analyzed. This document extends PCP with a new OpCode called QUERY Opcode. The proposed mechanism is valid for all NAT flavors including NAT44, NAT64 or NPTv6.