Transactions of the Institute of Systems, Control and Information Engineers
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
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A Source Address Dependent Dynamic Routing in Multi-PA Address Type IPv6 Multihoming Site
Kenji OhiraYasuo Okabe
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2012 Volume 25 Issue 9 Pages 230-238

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Abstract

In the discussion of IETF Multi6 Working Group, multihoming by multi-PA (Provider Aggregatable) addressing became rough consensus as the architecture for IPv6 site-multihoming. There are some open issues on this architecture such as source address selection by a host and bypassing ingress filtering of upstream ISPs. In this paper, we propose to introduce a restriction on coverage of source address dependent routing in host centric multihoming to only default route(s). By this proposal, the number of routing entries is increased not multiple of number of upstream ISPs but only the number of upstream ISPs itself. This proposal makes no side effects. Moreover, we have designed and tested a source IPv6 address dependent dynamic routing protocol. This proposed routing gives a consistent route to an exit router with respect to a source address without any modifications on existing routing implementations. This proposal is applicable even in a network which includes commercially-produced routers therefore this proposal improves the applicability of multi-PA address type multihoming in actually operated networks.

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© 2012 The Institute of Systems, Control and Information Engineers
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