On Mar 4, 2011, at 1:28 PM, Fred Baker wrote: > On Mar 4, 2011, at 9:58 AM, Christian Huitema wrote: > >> There are however two big limitations to solutions like STUN, TURN or ICE. >> First, it is entirely possible to engineer a middle-box that breaks them, by >> making the mappings hard to discover. Second, if the mappings are volatile >> and short lived, the end to end systems are forced into a pattern of >> frequent polling which drains the batteries of mobile devices. If the NPT >> spec addresses these limitations, we may well have a deal. > > NPTv6 provides a stable mapping as long as the internal address remains > constant - it has an internal prefix and an external prefix, and does a > reproducible mapping between the two. There is a question with privacy > addressing - if the host interface changes its address, and especially if it > changes it frequently, the peer will need to keep track of that, and there is > a question of how DNS knows what the current address is. But the network > isn't changing the address, the host is.
I've always assumed that privacy addresses were meant to be ephemeral. Otherwise, there's no point to them. Keith _______________________________________________ nat66 mailing list [email protected] https://www.ietf.org/mailman/listinfo/nat66
