IPv6 dark traffic collection restarted

Marshall Eubanks marshall.eubanks at gmail.com
Tue Apr 24 12:06:33 CDT 2012

Dear Geoff;

On Tue, Apr 24, 2012 at 12:41 PM, Geoff Huston <gih at apnic.net> wrote:
> Hi,
> In 2010, and again in 2011, I ran an experiment to examine the "dark" traffic in IPv6. I did this by announcing the "superblock" 2400::/12 which has been allocated to APNIC for its IPv6 allocations. The superblock announcement is an aggregate and will not disrupt any IPv6 traffic - the packets that will head to this dark traffic collector were on their way to /dev/null in any case.
> We are about to run this experiment up again to collect a 2012 data profile for IPv6 dark traffic in 2012. Accordingly, 2400::/12 will be announced by AS3562 - please don't filter it! IPv6 packets are scarce enough already! :-)

As the IPv6 UDP Checksum relaxation effort gets instantiated (the draft
http://tools.ietf.org/html/draft-ietf-6man-udpchecksums-02 is now in
WGLC), could you look at the existence (or lack thereof) of UDP
checksums in IPV6 ? It would be good to have some baseline data to
see, if these become a problem in the future, what the state was
before they were adopted.


> This time around we are being assisted by Sandia National Laboratories and ESnet, for which APNIC would like to acknowledge their assistance in this ongoing research activity.
> Some URLs:
>  - ESnet news item is at: http://www.es.net/services/ipv6-network/esnet-supports-sandia-and-apnic-ipv6-background-radiation-research/
>  - LOA for the announcement: http://www.sandia.gov/apnic/authorization.pdf
>  - Previous re[port: http://www.potaroo.net/ispcol/2010-07/dark6.pdf
> thanks,
>   Geoff

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