On 18 March 2014 15:08, Ted Lemon <[email protected]> wrote:
> On Mar 18, 2014, at 10:04 AM, Wojciech Dec <[email protected]> wrote: > > It's rather clear that lw46 also uses "an algorithm", if not THE > "algorithm"... > > It doesn't use a mapping algorithm to map between IPv4 and IPv6 addresses, > which was the point that Qi expressed in the text he sent out this morning. > > Text I (re)proposed said it all: Lightweight 4over6 is a solution designed specifically for complete independence between IPv6 subnet prefix and IPv4 address with or without IPv4 address sharing. This is accomplished by maintaining state for each softwire (per-subscriber state) in the lwAFTR and a hub-and-spoke forwarding architecture. [I-D.ietf-softwire-map] offers the same capabilities along with means for reducing the amount of such state using *algorithmic* address mapping rules, which however introduce a relation between the IPv6 subnet prefix and IPv4 address. This relation also allows optional meshed connectivity between users.
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