Re: [secdir] SECDIR review of draft-ietf-manet-olsrv2-metrics-rationale-02

"Stan Ratliff (sratliff)" <> Wed, 06 March 2013 17:14 UTC

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From: "Stan Ratliff (sratliff)" <>
To: "Dearlove, Christopher (UK)" <>
Thread-Topic: SECDIR review of draft-ietf-manet-olsrv2-metrics-rationale-02
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Date: Wed, 6 Mar 2013 17:14:47 +0000
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Cc: "" <>, secdir <>, "" <>, Adrian Farrel <>, "" <>, "Stewart Bryant \(stbryant\)" <>
Subject: Re: [secdir] SECDIR review of draft-ietf-manet-olsrv2-metrics-rationale-02
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FWIW, I agree with Chris - including security concerns for OLSRv2 would be a scope change for the document. The authors were trying to answer the question "Why did you put metrics into OLSRv2, and why did you include them in this specific fashion?" Given that scope, I don't believe there are security issues, and the note in the document is adequate.

Just my 2 cents.


On Mar 6, 2013, at 11:37 AM, Dearlove, Christopher (UK) wrote:

Please note that this is not a rationale of OLSRv2.

This is a rationale of how metrics were added to OLSRv2, a small subset of the complete OLSRv2 functionality.

There were of course security considerations in the design of OLSRv2, but this is not that document.

Christopher Dearlove
Senior Principal Engineer, Communications Group
Communications, Networks and Image Analysis Capability
BAE Systems Advanced Technology Centre
West Hanningfield Road, Great Baddow, Chelmsford, CM2 8HN, UK
Tel: +44 1245 242194 |  Fax: +44 1245 242124<> |

BAE Systems (Operations) Limited
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From: Stephen Kent []
Sent: 06 March 2013 15:40
To: secdir; Dearlove, Christopher (UK);<>;<>;<>;<>; Stewart Bryant; Adrian Farrel
Subject: SECDIR review of draft-ietf-manet-olsrv2-metrics-rationale-02

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SECDIR review of draft-ietf-manet-olsrv2-metrics-rationale-02

I reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG.  These comments were written primarily for the benefit of the security area directors.  Document editors and WG chairs should treat these comments just like any other last call comments.

This document is targeted as an Informational RFC. It describes itself as “… an historic record of the rationale for, and design considerations behind, how link metrics were included in OLSRv2.”

The Security Considerations section says simply “This document does not specify any security considerations.” It’s been a very long time (many years) since I’ve encountered that phrase in a candidate RFC. A rationale document itself probably does not entail security considerations, but the omission of any security discussion suggests that security did not play a role in the deign of this routing protocol. Is that true? If so, who thinks this is a good thing?

I looked at the I-D that defines OLSRv2. It contains a two-page Security Considerations section. From my perspective, this document ought to provide background info (rationale) for the security suggestions contained that document.

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