Port Control Protocol (PCP) Authentication Mechanism (RFC7652)
Original Publication Date: 2015-Sep-01
Included in the Prior Art Database: 2016-Feb-05
Internet Society Requests For Comment (RFCs)
M. Cullen: AUTHOR [+4]
Using the Port Control Protocol (PCP) [RFC6887], an application can flexibly manage the IP address-mapping information on its network address translators (NATs) and firewalls and can control their policies in processing incoming and outgoing IP packets. Because NATs and firewalls both play important roles in network security architectures, there are many situations in which authentication and access control are required to prevent unauthorized users from accessing such devices. This document defines a PCP security extension that enables PCP servers to authenticate their clients with the Extensible Authentication Protocol (EAP). The EAP messages are encapsulated within PCP messages during transmission.
Internet Engineering Task Force (IETF) M. Cullen Request for Comments: 7652 S. Hartman Updates: 6887 Painless Security Category: Standards Track D. Zhang ISSN: 2070-1721 T. Reddy Cisco September 2015
Port Control Protocol (PCP) Authentication Mechanism
An IPv4 or IPv6 host can use the Port Control Protocol (PCP) to flexibly manage the IP address-mapping and port-mapping information on Network Address Translators (NATs) or firewalls to facilitate communication with remote hosts. However, the uncontrolled generation or deletion of IP address mappings on such network devices may cause security risks and should be avoided. In some cases, the client may need to prove that it is authorized to modify, create, or delete PCP mappings. This document describes an in-band authentication mechanism for PCP that can be used in those cases. The Extensible Authentication Protocol (EAP) is used to perform authentication between PCP devices.
This document updates RFC 6887.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7652.
Cullen, et al. Standards Track [Page 1]
RFC 7652 PCP Authentication September 2015
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