[Collisions] Weird dest IP addr

Warren Kumari warren at kumari.net
Mon Oct 7 15:39:02 UTC 2013


On Oct 7, 2013, at 8:28 AM, Kevin White <kwhite at jasadvisors.com> wrote:

> In the 2008 data for a and j root, I’m seeing a lot of queries destined for:
>  
> 198.41.0.10
>  
> Which isn’t the official root server address of anything.

But it *was* -- AFAIR at the beginning of 1997.

>  
> For example:
>  
> non-root: /mnt/oarc-pool4/DITL-200803/RAW/verisign/a-root-and-old-j-root/20080319/095017.333638.pcap.gz 2008-03-19 09:50:41.683549 IP 66.152.201.19.1101 > 198.41.0.10.53: 53758 A? xpone.home. (28)
>  
> My current logic throws that row out (throws out any rows that aren’t destined for a valid root server IP).
>  
> Is there some historical reason why queries to this address in 2008 might be considered valid?

Known issue. A large number of devices / systems simply don't pick up changes because of broken priming issues or simply because the don't reprise after booting.

For example: 
http://conferences.sigcomm.org/imc/2013/papers/imc258s-lentzA.pdf
http://www.renesys.com/2008/05/identity-theft-hits-the-root-n-1/

There are many papers that show that once an address is used for a root server is it tainted basically forever…

W

>  
> Thank you,
>  
> Kevin
>  
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--
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