<p> ACP WGN SGN1/3 FL02</p><p>Aeronautical Communication Panel (ACP)</p><p>Working Group N – Networking New Orleans, USA, 10–19 November 2004</p><p>Information on Commercial IPv6 Connectivity Services in Japan</p><p>Prepared by: Mark Brown (Japan)</p><p>Summary</p><p>This flimsy presents summary information on IPv6 connectivity services available in Japan. It is made available to support the report on TCP/IP being prepared by SGN01.</p><p>- 1 - 1. Introduction</p><p>In 2003, NTT Communications of Japan and its Internet services provider arm OCN introduced IPv6 services aimed at business users. This flimsy presents summary information on these services as input to WGN SGN01’s current study on the use of TCP/IP for aeronautical telecommunication. The material presented is summarised from information available from NTT’s web pages.</p><p>2. Summary of Information</p><p>2.1 NTT Communications’ IPv6 Network Service</p><p>Summarised from http://www.nttverio.com/ja_JP/products/products.cfm?product=ns_ipv6</p><p>NTT offers a direct connection to the global IPv6 backbone using the IPv6 protocol, and blocks of IPv6 addresses. A dual IPv4/IPv6 service is also offered that provides simultaneous IPv4 and IPv6 access to the global IP backbone network over a single connection.</p><p>The NTT Communications Global IPv6 Backbone provides connectivity to countries including Germany, United Kingdom, France, Spain, the Netherlands, Malaysia, Taiwan, Australia, China, Hong Kong, and the United States.</p><p>2.2 OCN ADSL IPv6 Dual Service</p><p>Summarised from http://www.ocn.v5.ntt.net/dual/overview.html</p><p>OCN, the Internet service provider arm of NTT Communications, offers ADSL connection (maximum speed 50 Mbps down/3 Mbps up) that can support simultaneous use of IPv4 and IPv6 for 6,444.9 yen (approximately US$62 at the time of writing) per month (tax incl.). OCN also offers a block of fixed IPv6 address space, and the usual Internet Service Provider (ISP) services such as OCN sub-domain or independent user domain, DNS hosting service for OCN sub-domains etc.</p><p>3. Conclusion</p><p>The meeting is invited to note the information in this flimsy for use in the report on use of TCP/IP for aeronautical communications currently being prepared by SGN01.</p><p>- 2 -</p>