Hi Bill,
William Herrin schrieb:
On Mon, Nov 16, 2009 at 5:59 PM, Michael Menth
<[email protected]> wrote:
Can you define "NAT66" precisely?
We need the a box that translates local IPv6 addresses into global IPv6
addresses using a stateless NAT using a one-to-one reversible mapping
algorithm for single-homed edge networks. That is precisely what NAT66 as
described in the draft does according to our understanding.
Hi Michael,
Doesn't that leave you with all the DNS issues that make changing ISPs
so problematic with IPv4 PA addresses?
What about multihomed edge networks?
In case of multihomed edge networks, there is a 1:n mapping from IDs (or
unique local address) to global routing locators (or RLOCs in general,
or global addresses). To be backwards-compatible with the classic IPv6
Internet, return packets of a connection should use the same global
addresses. GLI-Split proposes two different features that achieve this.
One is a stateful NAT for communication with classic IPv6 hosts inside a
GLI-domain, the other is based on IPv6 extension headers for
communication with upgraded GLI-hosts. I think that it touches a
fundamental problem of Loc/ID split solutions based on address
rewriting when hosts have only a single local address but their edge
network is multhomed to the outside world.
Regards,
Michael
Regards,
Bill Herrin
--
Dr. Michael Menth, Assistant Professor
University of Wuerzburg, Institute of Computer Science
Am Hubland, D-97074 Wuerzburg, Germany, room B206
phone: (+49)-931/31-86644 (new), fax: (+49)-931/888-6632
mailto:[email protected]
http://www3.informatik.uni-wuerzburg.de/research/ngn
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