PCP Server Discovery based on well-known IP Address

Document Type Replaced Internet-Draft (individual)
Last updated 2014-03-03 (latest revision 2013-08-19)
Replaced by RFC 7723
Stream (None)
Intended RFC status (None)
Expired & archived
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IESG IESG state Replaced by draft-ietf-pcp-anycast
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Port Control Protocol (PCP) provides a mechanism to control how incoming packets are forwarded by upstream devices such as Network Address Translator IPv6/IPv4 (NAT64), Network Address Translator IPv4/IPv4 (NAT44), IPv6 and IPv4 firewall devices, and a mechanism to reduce application keep alive traffic. This document establishes a well-known IP address for the PCP Server and documents how PCP clients embedded in endpoints can use it during the discovery and regular operation phases.


Sebastian Kiesel (ietf-pcp@skiesel.de)
Reinaldo Penno (repenno@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)