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On the tunnel service

On the tunnel service. Shin Miyakawa NTT Communications Tokyo Japan miyakawa@nttv6.jp. Why tunnel ?. Ideally, we’d like to let a user to use IPv6/v4 “native” service But from the users’ point of view, it costs to replace their CPE (ex. ADSL router)

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On the tunnel service

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  1. On the tunnel service Shin Miyakawa NTT Communications Tokyo Japan miyakawa@nttv6.jp

  2. Why tunnel ? • Ideally, we’d like to let a user to use IPv6/v4 “native” service • But from the users’ point of view, it costs to replace their CPE (ex. ADSL router) • Or just people dislike to change their ISP without certain reason • So, let them put additional box or software onto their LAN to create IPv6 over IPv4 tunnel service to “taste” IPv6 easily

  3. Native IPv6 / v4 dual stack service IPv6/v4 Dual Stack Internet IPv6/v4 IPv6/v4 CPE Upstream link: Global IPv4 / { Global IPv6 | Link Local IPv6 } LAN: Private IPv4 / Global IPv6

  4. IPv6 over v4 tunnel service IPv4 Network IPv6 Network RA Tunnel Termination Box IPv4 CPE Access Concentrator v6 over v4 tunnel IPv6/v4 Upstream link: Global IPv4 LAN: Private IPv4 / Global IPv6

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