[4] WU P, CUI Y, XU M, et al. Flexible integration of tunneling and translation for IPv6 transition[J]. Springer Networking Science, 2012, 1(1/2/3/4):23-33.

[5] WU P, CUI Y, XU M, et al. PET: Prefixing,encapsulation and translation for IPv4-IPv6 coexistence [C]//Proceedings of the IEEE Global Telecommunications Conference (GLOBECOM'10), Dec 6-10,2010, Miami,FL, USA. Piscataway, NJ,USA:IEEE, 2010:5p.

[6] CUI Y, DONG J, WU P, et al. Tunnel-based IPv6 transition [J]. IEEE Internet Computing,to be published.

[7] LI X, DAWKINS S, WARD D, et al. Softwire problem statement [S]. RFC4925. 2007.

[8] CUI Y, WU P, XU M, et al. 4over6: Network layer virtualization for IPv4/IPv6 coexistence[J]. IEEE Network, 2012, 26(5):44-48.

[9] WU J, CUI Y, METZ C, et al. Softwire mesh framework [S]. RFC5565. 2009.

[10] WU J, CUI Y, LI X, et al. 4over6 transit solution using IP encapsulation and MP-BGP extensions [S]. RFC5747. 2010.

[11] CUI Y, WU J, WU P, et al. Public IPv4 over access IPv6 network [R]. IETF draft. 2012.

[12] CUI Y, SUN Q, BOUCADAIR M, et al. Lightweight 4over6: An extension to the DS-lite architecture [R]. IETF draft. 2012.

[13] CUI Y, WU P, WU J, et al. DHCPv4 over IPv6 transport [R]. IETF draft. 2012.

[14] SUN Q, XIE C, LEE Y, et al. Deployment considerations for lightweight 4over6 [R].IETF draft. 2012.

作者：崔勇 陈煜驰 来源：中兴通讯技术