LIN6: A Solution to MultiHoming and Mobility in IPv6

1
LIN6 A Solution toMulti-Homing and Mobility in
IPv6

• shio (Sony CSL)
• Fumio Teraoka (Sony CSL)
• Masahiro Ishiyama (Toshiba)
• Keisuke Uehara (Keio Univ.)
• Mitsunobu Kunishi (Keio Univ.)
• Hiroshi Esaki (Univ of Tokyo)
• WIDE PROJECT

2
Overview

• LIN6 Location Independent Networking for IPv6
• Based on 64-bit node identifier
• IPv6 address is a locator
• Attacks several technological issues
• Multi-homing
• Mobility
• Security
• Coexists with current IPv6
• I-D is available at http//www.csl.sony.co.jp/LIN
  6/
• draft-teraoka-mobility-lin6-00.txt

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Address Architecture
IPv6 node
specifies i/f
specifies subnet
IPv6 address
LIN6 address
LIN6 node
specifies subnet
specifies node
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Communication Procedure
src const (64bits) ID-1 (64bits) dst const
(64bits) ID-2 (64bits)
src const (64bits) ID-1 (64bits) dst const
(64bits) ID-2 (64bits)
Transport layer
Network layer
src prefix-1 (64bits) ID-1 (64bits) dst
prefix-2 (64bits) ID-2 (64bits)
src prefix-1 (64bits) ID-1 (64bits) dst
prefix-2 (64bits) ID-2 (64bits)
Link layer
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Multi-Homing Support
ID-1
src const ID-1 dst const ID-2

• Node-1 starts TCP sessionusing Path-A with IPsec
• Path-A crashes
• Node-1 detects it(e.g. ICMP network unreach)
• Node-1 continues the TCPsession using Path-B
  withIPsec

Node-1
prefix-1
src prefix-1 ID-1 dst prefix-A ID-2
src prefix-1 ID-1 dst prefix-B ID-2
Path-A
Path-B
prefix-A
prefix-B
src const ID-1 dst const ID-2
Node-2
ID-2
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Mobility Support
Mobile Node host name mbl.csl.sony.co.jp ID
ID-1
Name Server
correspondent node (CN)
Mapping Agent
prefix prefix-1
1. Mapping update
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Summary

• Implementation status
• LIN6 has been implemented on KAME
• Running on NetBSD, FreeBSD, and BSDI
• Source code will be available soon
• Pursue as a WG work item
• Anybody interested?
• http//www.csl.sony.co.jp/LIN6/

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Advantages over Mobile IPv6

• No header overhead
• LIN6 uses only IPv6 base header.
• Mobile IPv6 uses Routing Header and Destination
  Options Header.
• Highly fault tolerant
• Mapping Agent can be replicated to any subnet.
• Home Agent of Mobile IPv6 cannot be replicated on
  foreign subnet.