Hi Reinaldo, I'm not sure whether I understand SD-NAT correctly. I mean, in "lightweight 4over6", we will only do single-NAT in the initiator, and there is no address/port translation in the concentrator-side. If SD-NAT needs to do address/or port translation on both CPE and AFTR, there will be double ALG issues here. But as you mentioned in previous mail, in case double translation is optional, double ALG would also be optional.
Anyway, it is an interesting stateless scheme and I would like to discuss with you in Taipei :) Best wishes Qiong On Tue, Nov 8, 2011 at 8:41 AM, Reinaldo Penno <[email protected]> wrote: > Can you clarify more ALG issues? It seems to me that whatever ALG issues > you > have it will happen irrespective. > > > On 11/4/11 1:00 AM, "Qiong" <[email protected]> wrote: > > > A quick comment: it seems SD-NAT has introduced double address > translation > > making use of regular DHCP/Radius. It is very interesting, however, it > would > > introduce more ALG issues than single NAT. It is more like a hub&spoke > > stateless solution, e.g. stateless 4over6, etc. I'm not sure how this > kind of > > stateless mechanism compared to 4rd, dIVI, etc. And I would prefer a > unified > > address+port allocation algorithm in softwire WG. > >
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