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Re: [sidr] WGLC: draft-ietf-sidr-bgpsec-reqs

Randy Bush <randy@psg.com> Tue, 08 November 2011 15:13 UTC

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Date: Tue, 08 Nov 2011 16:13:23 +0100
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From: Randy Bush <randy@psg.com>
To: Russ White <russw@riw.us>
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Subject: Re: [sidr] WGLC: draft-ietf-sidr-bgpsec-reqs
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>> nope.  gains absolute zero replay protection.  see my preso from VdeQ.
> I fail to see how this is possible. Please send a pointer.

from slide 10

A originates the announcement
If everyone beacons, assume the beacon TTL applies only to that hop  
B gets it from A, C gets it from B, D gets it from C
D can keep sending the announcement, even though C’s TTL expired.  Oops!


randy

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