On Mar 14, 2012, at 2:34 PM, Francis Dupont wrote: > In your previous mail you wrote: > >> However, the draft seems give people impression there is only one NAT >> at CPE(i.e. 2.3. Stateless DS-Lite CPE operation) and AFTR is >> responsible for decapsulation and IPv4 package validation. Did I miss >> something? > > => yes, the SD-CGN (the SD-AFTR with DS-Lite) runs a second NAT but > only on port (vs. address and port) and following algorithm (aka stateless).
This 2nd NAT was the case in sdnat-01. This has changed in sdnat-02, where the SD-CPE pre-shape IPv4 traffic with both address & port, so the SD-AFTR does only decapsulation and ACL check. No NAT is done at all in the SD-AFTR. - Alain. _______________________________________________ Softwires mailing list Softwires@ietf.org https://www.ietf.org/mailman/listinfo/softwires
