topics:
topics We NTT Communications group has already started commercial IPv6/v4 dual stack commercial service in Japan, initially from down town Tokyo since this summer
We have talked with the other ISPs and also (mostly Japanese based but not limited to) vendors who supplying equipments and softwares already about the specification which is opened to the public but written in Japanese
http://www.v6.ntt.net/what/20020731.html
Some non Japanese based network operators and some other vendors/software developers are interested by the specification, because they could cut-off the cost of design work and implementation
So, simply we’d like to translate our specification into English and publish as informational draft under the name of v6ops working group as an running example for ADSL IPv6/IPv4 dual stack service.
The Company NTT:
The Company NTT Nippon Telegraph and Telephone
history started in 1869
the ministry of telecommunication of Japanese government
became a “public corporation” in 1952
incorporated (or “privatized”) in 1984
re-organized on 7/1,1999
The company NTT became the share-holding and R&D company which has
NTT East and NTT West as two local service companies,
NTT Communications as long-distance, international, FR, ATM and Internet service,
NTT DoCoMo doing cellular phone business,
NTT Data as a system solution service company,
and a lot of group subsidiaries.
URL: http://www.ntt.co.jp/
NTT-Communications http://www.ntt.com/
World operation http://www.nttverio.com/
IPv6 related http://www.v6.ntt.net/ (mostly Japanese, sorry)
NTT/VERIO Global IPv6 Backbone & Solutions:
NTT/VERIO Global IPv6 Backbone & Solutions Japan U.S.A. NSPIXP-6 PAIX S-IX AMS-IX Asia NTT Europe NTT MCL Europe Commercial services Trial / Planed services JPNAP LINX NTT/VERIO Global IPv6 Backbone IPv6
Gateway
Services IPv6
Tunneling
Services ISP, iDC IPv6/IPv4
Dual Access
w/ PnP NTT Aust IP Australia UK6X
Specification summary:
Specification summary RADIUS ADSL LAN BAS B-Router Host Authentication /
Link Establishment Router Configuration
（Prefix / DNS） Host Configuration
（Address / DNS） PPPoE
Specification hi-light:
Specification hi-light 1 IPv4 address + 1 IPv6 prefix (usually /48)
Using DHCPv6 (especially PD option) as (Dynamic) Site Configuration Protocol. Please do not be confused.
IPv6 prefix delegation statically
Subscriber gets same prefix
IPv4 address assignment dynamically
IPv4 address may change
IPv6 friendly DNS operation
Our DNS servers have IPv6 transport and accepting DNS transfer by that
Can be customer’s secondary server
Assuming [assigned prefix]::53 as customer’s DNS primary server location
So that customer can run
Dual Stack Mail Server
Dual Stack WWW Server
and more
At the end:
At the end We hope that we could publish a detailed specification as Informational RFC as so that anybody who interested by same kind of service can use it to save time and efforts
Also from vendors point of view, if this method would be widely used in the world wide, that means they also can save time and costs for development