無

　　Multihoming allows a site/host to connect to multiple Internet Service Providers (ISPs) simultaneously. In this paper, a hybrid IPv6 multihoming approach, which combines the host-based
multihoming approach and the router-based multihoming approach, is proposed. In the proposed
design, Router Advertisements defined in Internet Control Message Protocol version 6 (ICMPv6) is adopted to handle the multihoming message exchange between the router and the hosts within the IPv6 multihomed network. The corresponding system implementation called ”MultiGate6”, offers fault tolerance, load balancing, and provider independence services to both site and host levels. With the five load balancing policies provided in MultiGate6, congestion of a single link can be prevented and thus bandwidths of links can be more utilized.

[1] The IETF IPv6 MultihomingWorking Group.
http://www.ietf.org/html.charters/multi6-charter.html.
[2] R. Draves, ”Default Address Selection for Internet Protocol version 6 (IPv6),” RFC 3484, IETF, Feb. 2003.
[3] M. Crawford, ”Router Renumbering for IPv6,” RFC 2894, IETF, August 2000.
[4] R. Stewart, Q. Xie et. al., ”Stream Control Transmission Protocol,” RFC 2960, IETF, Oct. 2000.
[5] Internet-Draft: Host Identity Protocol.
http://www.ietf.org/internet-drafts/draft-ietf-hip-base-00.txt
[6] Internet-Draft: LIN6(Location Independent Networking for IPv6).
http://www.lin6.net/draft/draft-teraoka-multi6-lin6-00.txt
[7] Internet-Draft: GSE - An Alternate Addressing Architecture for IPv6 (aka 8+8)
http://www.watersprings.org/pub/id/draft-ietf-ipngwg-gseaddr-00.txt
[8] J. Hagino, H. Snyder, ”IPv6 multihoming support at site exit routers,” RFC 3178, IETF, October 2001.
[9] Internet-Draft: MHAP - Multi Homing Aliasing Protocol
http://arneill-py.sacramento.ca.us/ipv6mh/draft-py-mhap-01a.txt
[10] T. Bates, ”Scalable support for multi-homed multi-provider connectivity,” RFC 2260, IETF, January 1998.
[11] N. Yamai, K. Okayama, H. Shimamoto, and T. Okamoto, ”A Dynamic Traffic Sharing with Minimal Administration on Multihomed Networks,” Proc. of IEEE International Conference on Communications 2001 (ICC2001), Vol.5, pp.1506-1510, June 2001.
[12] Y. Hori, K. Onimaru, T. Ikenaga, and Y. Oie, ”Design and Implementation of IPv6 gateway allowing effective use of multihome network,” IEEE PACRIM’03, pp.601-604, 28-30 Aug. 2003, Victoria, B.C., Canada , August 2003.
[13] A. Conta and S. Deering, ”Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification,” RFC 2463, IETF, December 1998.
[14] B. A. Mah. pchar: a Tool for Measuring Internet Path Characteristics. February 1999.
[15] Linux IPv6 Router Advertisement Daemon (radvd).
http://v6web.litech.org/radvd/index.html.
[16] T. Narten, E. Nordmark andW. A. Simpson, ” Neighbor Discovery for IP version 6 (IPv6) ”, RFC 2461, IETF, December 1998.
[17] S. Thomson and T. Narten, ”IPv6 Stateless Address Autoconfiguration,” RFC2462, IETF, December 1998.