As Med replied in a different email, the CPE is the B4 in the ds-lite draft which performs v4-over-v6 tunnel for v4 packets. No NAT-44 will happen in B4.
On 3/22/10 10:28 AM, "孙琼" <[email protected]> wrote: > Hi Boucadair, > > I'm wondering if I have missed something in this draft. I can understand that > in this extended DS-Lite, ICXF is core stateless and it is quite scalable for > core routers. However, since CPEs can send both IPv4 packet and IPv6 packet > to AFTR, it will then include double NAT problem if we have to allocate > private IPv4 address to CPEs. Then what is the advantage of this kind of > DS-Lite vs. NAT666 plus dual stack? > > Thank you very much. > > Best regards > > Qiong SUN > > > _______________________________________________ > Softwires mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/softwires
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