[atlas] New measurement target suggestion: 6to4 anycast
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Iñigo Ortiz de Urbina
inigo at infornografia.net
Wed Dec 21 12:21:14 CET 2011
On Wed, Dec 21, 2011 at 11:57 AM, Mohacsi Janos <mohacsi at niif.hu> wrote: > Dear All, > 6to4 should not used any longer. However it would be nice to see how > 6to4 usage decreasing over the time.... > I agree. It may be interesting to see its eventual sunset, which is already showing up according to Google's stats: http://www.google.com/intl/en/ipv6/statistics/ Also, quoting Robert Kisteleki: " We are aware that in some cases the lookup has a surprising result. One example is 6to4: for IPv6 related ASNs the prefix is 2002::/16 but the ASN can be misleading. We'll most likely stop looking up ASNs for 6to4 (and Teredo) prefixes. If you see anomalies *not* related to this, you can let us know at atlas-dev at ripe.net " it is unclear (to me) how much interest and resources should be put into these measurements. > Janos Mohacsi > Head of HBONE+ project > Network Engineer, Deputy Director of Network Planning and Projects > NIIF/HUNGARNET, HUNGARY > Key 70EF9882: DEC2 C685 1ED4 C95A 145F 4300 6F64 7B00 70EF 9882 > Best, > > On Wed, 21 Dec 2011, Roman Mamedov wrote: > >> Hello, >> >> I'd like to suggest adding to the list of monitored addresses a new one: >> >> 192.88.99.1 - 6to4 anycast IPv4 to IPv6 gateway; >> >> https://en.wikipedia.org/wiki/6to4 >> https://tools.ietf.org/html/rfc3068 >> >> This could provide interesting data on what percentage of networks have >> this address blocked/inaccessible (resulting in broken operation of 6to4), >> and also what is the average latency to the closest 6to4 gateway across >> various countries/regions. >> >> The next step would possibly be the collection of statistics which ASes >> 'see' whose 6to4 gateways, this can be inferred from the AS of the >> traceroute hop that is right before the 192.88.99.1 on the trace. >> >> -- >> With respect, >> Roman >> >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> "Stallman had a printer, >> with code he could not see. >> So he began to tinker, >> and set the software free." >> >
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