Sri Gundavelli wrote, on 2009-12-01 11:13: > 1.) IPv6 App communicating with an IPv6 App > 2.) IPv4 App communicating with an IPv4 App > 3.) IPv6 App communicating with a legacy IPv4 App > 4.) IPv4 legacy App communicating with a future IPv6 App
I haven't fully followed the discussion up to this point, but here goes... New "IPv6 apps" are usually not IPv6-only. They are version-independent. See e.g. RFC4038. So your future app will try IPv4 if it cannot get IPv6 connectivity. Which, it seems to me, would make case 4 fold into case 2. How that ties into the DS-Lite/PNAT discussion, I leave up to you. ;) Simon -- DNS64 open-source --> http://ecdysis.viagenie.ca STUN/TURN server --> http://numb.viagenie.ca vCard 4.0 --> http://www.vcarddav.org _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
