Hi Teemu,
On Oct 19, 2010, at 9:31 AM, <[email protected]> <[email protected]
> wrote:
Margaret,
Section 11 of your draft states that the ULA prefix should be
selected randomly.
Have you considered selection of ULA prefix(es) for internal network
in such a manner that it/they can be translated to NAT uplink's /64
prefix in checksum neutral fashion?
Additionally, if stateful address autoconfiguration (DHCPv6) is used
in the network deploying NAT66, have you considered that the DHCPv6
server could choose /128 addresses in a fashion allowing checksum
neutral translation by NAT66?
This is an interesting idea, however it undermines the purpose of
NAT66... If the internal addresses are chosen to allow checksum
neutral translation to external addresses, then the internal addresses
will need to be changed whenever the site is renumbered by an ISP, or
when a site changes ISPs.
If the internal addresses are dependent on the external addresses, I
don't see the advantage of using NAT66. You could, instead, just
number the internal links with global addresses.
Margaret
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