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Re: [stir] Permitted spoofing

Hadriel Kaplan <hadriel.kaplan@oracle.com> Sat, 08 June 2013 19:03 UTC

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From: Hadriel Kaplan <hadriel.kaplan@oracle.com>
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Date: Sat, 08 Jun 2013 15:02:48 -0400
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References: <5DDB5576-CAEF-453C-8C90-0C6709DAD84F@neustar.biz> <172B7D9C-1E4F-49C7-90E5-5848682625CF@cs.columbia.edu> <15ABDCF6-F127-4E8B-807F-FC3FAD78B905@oracle.com> <00C069FD01E0324C9FFCADF539701DB3A03DAAEF@ex2k10mb2.corp.yaanatech.com>
To: Michael Hammer <michael.hammer@yaanatech.com>
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Cc: "Brian.Rosen@neustar.biz" <Brian.Rosen@neustar.biz>, "stir@ietf.org" <stir@ietf.org>, "hgs@cs.columbia.edu" <hgs@cs.columbia.edu>
Subject: Re: [stir] Permitted spoofing
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I think the hope was to proactively prevent a bogus call from succeeding, as opposed to reactively hunting down the perpetrators after it happened.  The latter case should be possible now, since CDRs record enough to backtrack to the upstream provider, and that provider's CDRs can find its upstream provider, etc.

-hadriel


On Jun 8, 2013, at 2:30 PM, Michael Hammer <michael.hammer@yaanatech.com> wrote:

> Question:  Do we really care how many redirections occurred in the middle
> network hops if we know what the original source of the signaling was?
> 
> Put another way, if we have a legitimate scape-goat for a problem call, do
> you need to catch all the stooges all at once?
> 
> Mike
>

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