Port Control Protocol (PCP) Extension for Port-Set Allocation
RFC 7753
Document | Type | RFC - Proposed Standard (February 2016; No errata) | |
---|---|---|---|
Authors | Qiong Sun , Mohamed Boucadair , Senthil Sivakumar , Cathy Zhou , Tina Tsou , Simon Perreault | ||
Last updated | 2016-02-04 | ||
Replaces | draft-boucadair-pcp-rtp-rtcp | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Reinaldo Penno | ||
Shepherd write-up | Show (last changed 2015-08-25) | ||
IESG | IESG state | RFC 7753 (Proposed Standard) | |
Action Holders |
(None)
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||
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Brian Haberman | ||
Send notices to | (None) | ||
IANA | IANA review state | IANA OK - Actions Needed | |
IANA action state | RFC-Ed-Ack |
Internet Engineering Task Force (IETF) Q. Sun Request for Comments: 7753 China Telecom Category: Standards Track M. Boucadair ISSN: 2070-1721 France Telecom S. Sivakumar Cisco Systems C. Zhou Huawei Technologies T. Tsou Philips Lighting S. Perreault Jive Communications February 2016 Port Control Protocol (PCP) Extension for Port-Set Allocation Abstract 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. 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/rfc7753. Sun, et al. Standards Track [Page 1] RFC 7753 PCP PORT_SET February 2016 Copyright Notice Copyright (c) 2016 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Sun, et al. Standards Track [Page 2] RFC 7753 PCP PORT_SET February 2016 Table of Contents 1. Introduction ....................................................4 1.1. Applications Using Port Sets ...............................4 1.2. Lightweight 4over6 .........................................4 1.3. Firewall Control ...........................................4 1.4. Discovering Stateless Port-Set Mappings ....................5 2. The Need for PORT_SET ...........................................5 3. Terminology .....................................................6 4. The PORT_SET Option .............................................6 4.1. Client Behavior ............................................8 4.2. Server Behavior ............................................8 4.3. Absence of Capability Discovery ............................9 4.4. Port-Set Renewal and Deletion .............................10 4.4.1. Overlap Conditions .................................10 5. Examples .......................................................10 5.1. Simple Request on Network Address Translator IPv4/IPv4 (NAT44) .........................................10 5.2. Stateless Mapping Discovery ...............................12 5.3. Resolving Overlap .........................................13 6. Operational Considerations .....................................13 6.1. Limits and Quotas .........................................13 6.2. High Availability .........................................13 6.3. Idempotence ...............................................13 6.4. What should a PCP client do when it receives fewer ports than requested? .....................................15 7. Security Considerations ........................................15 8. IANA Considerations ............................................16 9. References .....................................................16 9.1. Normative References ......................................16Show full document text