Pv6 Security support 中电 Mobility support ±想 aH and esp extension header used with ·Bult- in on ipv6 IPsec indicates any node can use it Built-in on ipv6 No foreign agent Means any node can use it Solve the problem of triangle routing"in nobile ipv4 End-to-end network security(integrity notication, confidentiality) Efficient routing means performance for end-users The Challenges for IPv6 ±| The works of China Telecom± As a new technique, IPv6 is also market Address application driven Equipment test IPv6 testbed According to our estimation, the IPv4 addre Technical Experiments will still be enough by the end of 2008 Current 3G deployment and NGN equipment is mainly based on IPv4 国电集团公司《h1 IPv6 testbed of_China Telecom tfes China Telecom filled the IPv6 allocation China Telecom has built a IPv6 testbed in est form and Hunan for IPv6 network and service tria address block from APNIC in Sept 2002 Composed of equipments from GSR to Access devices Interconnection with other Ipv6 networl Access network ADSL. LAN WLAN PIC Provide access service to end users 2001:0c68:/322 中国电信集团公司（China Telecom Corporation） 7 IPv6 Security support •AH and ESP extension header used with IPsec •Built-in on IPv6 –Means any node can use it. •End-to-end network security (integrity, authentication, confidentiality) . 中国电信集团公司（China Telecom Corporation） 8 Mobility support •Built-in on IPv6 –indicates any node can use it •No foreign agent •Solve the problem of “triangle routing”in mobile IPv4 •Efficient routing means performance for end-users. •Others... 中国电信集团公司（China Telecom Corporation） 9 The Challenges for IPv6 •As a new technique, IPv6 is also market￾driven. –IPv6 application is sparse, no specific application which can only be based on IPv6. –According to our estimation, the IPv4 address will still be enough by the end of 2008. –Current 3G deployment and NGN equipment is mainly based on IPv4. 中国电信集团公司（China Telecom Corporation） 10 The works of China Telecom •Address application •Equipment test •IPv6 testbed •Technical Experiments 中国电信集团公司（China Telecom Corporation） 11 Address application •China Telecom filled the IPv6 allocation request form and successfully received the address block from APNIC in Sept. 2002. 2001:0c68::/32 中国电信集团公司（China Telecom Corporation） 12 IPv6 testbed of China Telecom •China Telecom has built a IPv6 testbed in Hunan for IPv6 network and service trial. –Composed of equipments from GSR to Access devices –Interconnection with other IPv6 networks –Access network:ADSL, LAN, WLAN, –Provide access service to end users