On Jun 10, 2011, at 1:15 PM, james woodyatt wrote: > On Jun 9, 2011, at 10:42 AM, Lorenzo Colitti wrote: >> >> We have data that clearly shows that Mac OS 10.6.4, which uses 6to4 by default... > > I don't want anybody to be misled by this statement. I think what Lorenzo meant to say is that Mac OS X 10.6.4 and earlier doesn't implement the policy table in I-D.ietf-6man-rfc3484-revise, which prefers IPv4 source addresses over 2002::/16 IPv6 source addresses. > > Mac OS X has *never* used 6to4 by default. The scenario Lorenzo is talking about is where a router is advertising a 6to4 prefix onto a native IPv6 link. On those links, Mac OS X 10.6.4 and earlier will treat 6to4 prefixes equivalently to any other IPv6 prefix when making address selection decisions. thanks for clearing that up. I was pretty sure it wasn't true, but you saved me the trouble of reinstalling 10.6.4 to prove it. Keith _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf