Looking at a trace that I got from Geoff Huston a month or two ago, there are 25486 IPv6 TCP sessions of which 10748 have a 6to4 source address.
That's surprisingly high, showing that the answer depends greatly on the point of observation, and explains why operators really need to try to run a decent 6to4 relay service as long as so many such clients are observed. Which is why disabling 6to4 in clients has to be the priority; it's far too soon to decommission the relays. Regards Brian Carpenter On 2011-07-29 09:12, Tim Chown wrote: > On 28 Jul 2011, at 21:51, Michel Py wrote: > >> Lorenzo, >> >>> Lorenzo Colitti wrote: >>> http://www.google.com/intl/en/ipv6/statistics/ >> Thanks for the update. >> Clarification: in your stats, is AS12322's traffic classified as native >> or as 6to4/teredo? > > > Hi, > > I just ran a search through our Netflow logs of the most recent flows > attempting to traverse our enterprise border and this showed: > > 2002::/16 (6to4): > Summary: total flows: 562468, total bytes: 6.2 G, total packets: 11.0 M > > 2001::/32 (Teredo): > Summary: total flows: 1363887, total bytes: 4.9 G, total packets: 10.1 M > > Other: > Summary: total flows: 23681562, total bytes: 483.1 G, total packets: 546.9 M > > Teredo appears skewed by one host's behaviour which I'll be looking into, > otherwise it's about what I'd expect with around 1% by volume being 6to4. > > Tim > > > ------------------------------------------------------------------------ > > _______________________________________________ > Ietf mailing list > Ietf@ietf.org > https://www.ietf.org/mailman/listinfo/ietf _______________________________________________ Ietf mailing list Ietf@ietf.org https://www.ietf.org/mailman/listinfo/ietf