Subject: Re: [Softwires] Comments on divi-pd

From: Xing Li <[email-masked]>
Date: Wed, 02 Nov 2011 15:01:57 +0800

Hi,

于 2011/10/31 13:36, Washam Fan 写道:
> Hi the authors,
>
> I have 2 comments on this draft so far.
>
> 1. Appendix A gives an example how to generate a IPv4-translatable
> address delegated to a CPE, but miss the part how a CPE derive a IPv4
> prefix, address, or shared address from a given delegated
> IPv4-translatable address. At least, I think the s bits can not be
> derived without extra provisioning.
The CPE need to get configuration parameters via DHCPv6.
> 2. It seems to me native IPv6 addresses and IPv4-translatable
> addresses share the same prefix. Then how a CPE identify a IPv6 packet
> arriving at the WAN-facing interface is a native one or a translated
> one?

Since IPv4-translatable address is a /128 inside /64, when the 
configuration parameters are given (see above), the routing can guide 
the translated packets to the translation API.

xing

> Thanks,
> washam
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