[tcpm] [Technical Errata Reported] RFC5925 (4365)
RFC Errata System <rfc-editor@rfc-editor.org> Tue, 12 May 2015 20:48 UTC
Return-Path: <wwwrun@rfc-editor.org>
X-Original-To: tcpm@ietfa.amsl.com
Delivered-To: tcpm@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D3D8D1AD0CE for <tcpm@ietfa.amsl.com>; Tue, 12 May 2015 13:48:03 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -101.912
X-Spam-Level:
X-Spam-Status: No, score=-101.912 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_WHITELIST=-100] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id uan40gPrgkR4 for <tcpm@ietfa.amsl.com>; Tue, 12 May 2015 13:48:02 -0700 (PDT)
Received: from rfc-editor.org (rfc-editor.org [IPv6:2001:1900:3001:11::31]) by ietfa.amsl.com (Postfix) with ESMTP id 58AA91AD0CA for <tcpm@ietf.org>; Tue, 12 May 2015 13:48:02 -0700 (PDT)
Received: by rfc-editor.org (Postfix, from userid 30) id 0B5CE180092; Tue, 12 May 2015 13:46:19 -0700 (PDT)
To: touch@isi.edu, mankin@psg.com, rbonica@juniper.net, spencerdawkins.ietf@gmail.com, mls.ietf@gmail.com, michael.scharf@alcatel-lucent.com, nishida@sfc.wide.ad.jp, pasi.sarolahti@iki.fi
X-PHP-Originating-Script: 6000:errata_mail_lib.php
From: RFC Errata System <rfc-editor@rfc-editor.org>
Message-Id: <20150512204619.0B5CE180092@rfc-editor.org>
Date: Tue, 12 May 2015 13:46:19 -0700
Archived-At: <http://mailarchive.ietf.org/arch/msg/tcpm/-sG1MWHRwWMVoRtfKV_JFhQmZTo>
X-Mailman-Approved-At: Sun, 17 May 2015 08:30:31 -0700
Cc: rfc-editor@rfc-editor.org, tcpm@ietf.org, touch@isi.edu
Subject: [tcpm] [Technical Errata Reported] RFC5925 (4365)
X-BeenThere: tcpm@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: TCP Maintenance and Minor Extensions Working Group <tcpm.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tcpm>, <mailto:tcpm-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/tcpm/>
List-Post: <mailto:tcpm@ietf.org>
List-Help: <mailto:tcpm-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tcpm>, <mailto:tcpm-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 12 May 2015 20:48:04 -0000
The following errata report has been submitted for RFC5925, "The TCP Authentication Option". -------------------------------------- You may review the report below and at: http://www.rfc-editor.org/errata_search.php?rfc=5925&eid=4365 -------------------------------------- Type: Technical Reported by: Joe Touch <touch@isi.edu> Section: 7.6 Original Text ------------- TCP's 4-bit data offset requires that the options end 60 bytes (15 32-bit words) after the header begins, including the 20-byte header. This leaves 40 bytes for options, of which 15 are expected in current implementations (listed below), leaving at most 25 for other uses. TCP-AO consumes 16 bytes, leaving 9 bytes for additional SYN options (depending on implementation dependant alignment padding, which could consume another 2 bytes at most). o SACK permitted (2 bytes) [RFC2018][RFC3517] o Timestamps (10 bytes) [RFC1323] o Window scale (3 bytes) [RFC1323] Corrected Text -------------- TCP's 4-bit data offset requires that the options end 60 bytes (15 32-bit words) after the header begins, including the 20-byte header. This leaves 40 bytes for options, of which 19 are expected in current implementations (listed below), leaving at most 21 for other uses. TCP-AO consumes 16 bytes, leaving 5 bytes for additional SYN options (depending on implementation dependent alignment padding, which could consume another 2 bytes at most). o SACK permitted (2 bytes) [RFC2018][RFC3517] o Timestamps (10 bytes) [RFC1323] o Window scale (3 bytes) [RFC1323] o Maximum Segment Size (4 bytes) [RFC793] Notes ----- MSS was missing in the original text. New text includes MSS and updates numbers accordingly. Also corrects a spelling error (dependant -> dependent), which is non-technical but included in the revised text. Instructions: ------------- This erratum is currently posted as "Reported". If necessary, please use "Reply All" to discuss whether it should be verified or rejected. When a decision is reached, the verifying party (IESG) can log in to change the status and edit the report, if necessary. -------------------------------------- RFC5925 (draft-ietf-tcpm-tcp-auth-opt-11) -------------------------------------- Title : The TCP Authentication Option Publication Date : June 2010 Author(s) : J. Touch, A. Mankin, R. Bonica Category : PROPOSED STANDARD Source : TCP Maintenance and Minor Extensions Area : Transport Stream : IETF Verifying Party : IESG
- Re: [tcpm] [Technical Errata Reported] RFC5925 (4… Joe Touch
- Re: [tcpm] [Technical Errata Reported] RFC5925 (4… Scharf, Michael (Michael)
- [tcpm] [Technical Errata Reported] RFC5925 (4365) RFC Errata System
- [tcpm] [Errata Verified] RFC5925 (4365) RFC Errata System