[OSPF] [Technical Errata Reported] RFC6506 (3568)
RFC Errata System <rfc-editor@rfc-editor.org> Wed, 27 March 2013 12:41 UTC
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Date: Wed, 27 Mar 2013 05:41:27 -0700
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Subject: [OSPF] [Technical Errata Reported] RFC6506 (3568)
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The following errata report has been submitted for RFC6506, "Supporting Authentication Trailer for OSPFv3". -------------------------------------- You may review the report below and at: http://www.rfc-editor.org/errata_search.php?rfc=6506&eid=3568 -------------------------------------- Type: Technical Reported by: Marek Karasek <mkarasek@cisco.com> Section: 4.2 Original Text ------------- OSPFv3 Header Checksum Both OSPFv3 header checksum calculation and verification are omitted when the OSPFv3 authentication mechanism described in this specification is used. This implies: o For OSPFv3 packets to be transmitted, the OSPFv3 header checksum computation is omitted, and the OSPFv3 header checksum SHOULD be set to 0 prior to computation of the OSPFv3 Authentication Trailer message digest. o For received OSPFv3 packets including an OSPFv3 Authentication Trailer, OSPFv3 header checksum verification MUST be omitted. However, if the OSPFv3 packet does include a non-zero OSPFv3 header checksum, it will not be modified by the receiver and will simply be included in the OSPFv3 Authentication Trailer message digest verification. Corrected Text -------------- OSPFv3 Header Checksum and LLS Data Block Checksum OSPFv3 Header Checksum and LLS Data Block Checksum calculation and verification are omitted when the OSPFv3 authentication mechanism described in this specification is used. This implies: For OSPFv3 packets to be transmitted, the OSPFv3 header checksum and LLS Data Block checksum computation is omitted, and the checksums SHOULD be set to 0 prior to computation of the OSPFv3 Authentication Trailer message digest. For received OSPFv3 packets including an OSPFv3 Authentication Trailer, OSPFv3 header checksum and LLS Data Block checksum verification MUST be omitted. However, if the OSPFv3 packet does include a non-zero OSPFv3 header or LLS Data Block checksum, it will not be modified by the receiver and will simply be included in the OSPFv3 Authentication Trailer message digest verification. Notes ----- RFC does not specify how to work with LLS Data Block Checksum. Errata suggests omit checksum calculation/verification in the same way like for OSPFv3 header checksum. Instructions: ------------- This errata 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. -------------------------------------- RFC6506 (draft-ietf-ospf-auth-trailer-ospfv3-11) -------------------------------------- Title : Supporting Authentication Trailer for OSPFv3 Publication Date : February 2012 Author(s) : M. Bhatia, V. Manral, A. Lindem Category : PROPOSED STANDARD Source : Open Shortest Path First IGP Area : Routing Stream : IETF Verifying Party : IESG
- [OSPF] [Technical Errata Reported] RFC6506 (3568) RFC Errata System