Transcript PPT Version

KDDI Trial
Hub & Spoke
Shu Yamamoto
Carl Williams
Hidetoshi Yokota
KDDI R&D Labs
1
Trial Overview
• Trial for Home Users
– To find the new service capability by IPv6 global reachability
(connectivity from anywhere to user’s home network)
– To confirm IPv6 usefulness.
– Technical and operational verification of tunnel service
• IPv6 Tunnel Service Trial in FTTH users
– IPv4 over IPv6 tunnels are setup between Home Gateway
and Tunnel server over ISP IPv4 access network
– 1000 tunnels are always activated throughout Japan.
– Trial is from November 28, 2005 to March 31, 2006.
2
Trial Service
• Connectivity
– To provide the connectivity from user’s PC in outside IPv4
network to home network.
– To provide the connectivity from cellular phone to home
network.
• Applications through Tunnel
– Photos or Movie taken by a cellular phone is uploaded from
outside to PC in user’s home network.
– To access the home PC from a cellular phone to properly
display the Internet WEB pages by the KDDI provided
software installed in the home PC.
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IPv6 Tunnel Service Example #1
• IPv6 over IPv4 Tunnel
– TSP client installed in Home Gateway. IPv6 over IPv6 tunnel is setup
between Home Gateway and TSP server located in ISP IPv6 network
(KDDI Data Center).
• Connectivity from Outside
– User can access to PC and devices in home network from IPv4 network
with the combination of address translator and IPv6 over IPv4 tunnel
Portal Server
Home Gateway
（CPE）
TSP Server
SSL
ＴＳＰ Tunnel （IPv6 over IPv4）
IPv6
IPv4 Internet
Address
Translator
KDDI Network
Access Network
FTTH User
IPｖ4 Address
IPｖ6 Address
IPｖ4 Dynamic Address
IPｖ4/IPv6 Dual Stack
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IPv6 Tunnel Service Example #2
• Connectivity from Cellular Phone
– Data (photo, movie, message, etc) in cellular phone is able
to upload to the home network PC.
– To access WEB page for PC from cellular phone through
home PC.
Internet
Portal Server
Home Gateway
（CPE）
Mobile IPv4
Network
TSP Server
ＴＳＰ Tunnel （IPv6 over IPv4）
IPv6
Address
Translator
KDDI Network
Access Network
FTTH User
IPｖ4 Address
IPｖ6 Address
IPｖ4 Dynamic Address
IPｖ4/IPv6 Dual Stack
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IPv6 over IPv4 Tunnel and IPv6 Address
• Tunnel Description
– Tunnel is setup using Tunnel Broker Model and Tunnel Setup
Protocol (TSP)
– IPv4 over IPv6 tunnels traverses NAT at Home Gateway using
UDP encapsulation.
– Tunnel connectivity maintains for dynamic IPv4 address.
• Connectivity to host in home network
– /64 prefix allocated by ISP is delegated to user’s home network.
– IPv6 address of devices in home network is auto-configured.
– The devices in home network are accessed by using domain
names through the portal WEB site.
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Tunnel User Requirement
• General
– Tunnel configuration does not require complex setup.
– Convenience for home user
• User Requirement
– Home Gateway automatically setup the tunnel.
– No change of IPv4 service subscription. For example, It does
not require static IPv4 address.
– NAT traverse is mandatory.
– High level security. For example, it requires the mechanism
to hide IP address of user’s home network.
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ISP Operational Requirement
• General Requirement
– Scalable and reliable
– Low cost
• Operational Requirement
–
–
–
–
Tunnel health monitoring capability (mandatory)
Tunnel log data for accounting (mandatory)
Coordination with deployed AAA server (desirable)
Flexibility for customization (desirable)
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Summary
• IPv6 tunnel service using tunnel broker was deployed
for FTTH users
• TSP client (initiator) is installed at Home Gateway.
• 1000 tunnels are always activated.
• The connection from outside IPv4 network uses IPv6
tunnel together with address translator.
• After trial, feedback from customers will be obtained in
terms of usefulness and convenience.
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