[tcpm] [Errata Verified] RFC5925 (4365)
RFC Errata System <rfc-editor@rfc-editor.org> Wed, 16 December 2015 21:33 UTC
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Subject: [tcpm] [Errata Verified] RFC5925 (4365)
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The following errata report has been verified 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 -------------------------------------- Status: Verified Type: Technical Reported by: Joe Touch <touch@isi.edu> Date Reported: 2015-05-12 Verified by: Martin Stiemerling (IESG) 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. -------------------------------------- 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