Re: secid review of draft-ietf-ipv6-deprecate-rh0-01

Joe Abley <jabley@ca.afilias.info> Tue, 02 October 2007 12:48 UTC

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From: Joe Abley <jabley@ca.afilias.info>
Date: Tue, 02 Oct 2007 08:46:42 -0400
To: Jari Arkko <jari.arkko@piuha.net>
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Subject: Re: secid review of draft-ietf-ipv6-deprecate-rh0-01
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On 1-Oct-2007, at 0511, Jari Arkko wrote:

> Hi David, and thanks for your review. Inline:
>
>> As such, the whole document is a security consideration. The
>> vulnerability appears well-documented, and the guidelines for  
>> handling
>> the deprecated RH0 are clear.
>
> Good.

Just by-the-by, I noticed the first reports of peoples' "block-rh0"  
filters in live production networks taking hits yesterday. The notes  
I saw showed periods of low-volume, low-frequency packets with RH0,  
and also periods in which the traffic volume was noticeably higher.

The reports I saw featured source addresses in CERNET in China. It  
was not obvious whether those had been spoofed.

It is of course difficult go gauge the motivation for sending the  
packets when you're on the receiving end. However, I thought it  
noteworthy that such things had been seen, recently, in the wild.


Joe

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