HA MN CN MN. (BC NOT available) Dst: HomeAddr via CoA. Src: CN. Dst: HomeAddr. (BC available) HAO. Src: HA Dst: CoA (IPv6inIPv6) CoA.

Transcription

1 IPv6 y1 y2 y3 y4 y5 IPv6 IETF IPv6, Home Agent IP IPv6 IPv6 1. Internet Engineering Task Force (IETF) IPv6 1) Mobile IPv6 2)3) 4) Mobile IPv6 Mobile IPv6 2 Mobile IPv6 3 Mobile IPv6 4 IPv6 5 y1 ( ) y2 y3 y4 y5 ( ) 2. Mobile IPv6 Mobile IPv6 2.1 Mobile IPv6 IP IP (mobility) 5) (nomadicity) 5) 2 IP IP Internet Protocol IP 2.2 Mobile IPv6 IP 1 IP 2 IP 1

2 Mobile IPv6 Mobile IPv6 2 Home Address (Haddr) Care-of-Address (CoA) Haddr CoA Haddr Haddr IPv6 Mobile IPv6 Haddr Haddr Haddr Haddr Haddr Home Agent (HA) Haddr CoA ( binding ) HA HA Haddr CoA binding binding Haddr IPv6 HA 2.3 Mobile IPv6 Mobile IPv6 3) Mobile IP 1 (MN) 1 Home Address (Haddr) MN IPv6 Care-of-Address (CoA) MN Haddr IP (Home Network) Home Agent (HA) MN CoA CoA HA CoA MN (CN) source address CoA Home Address Option (HAO) Home Address Option MN Haddr CoA HAO Haddr HAO IPv6 Destination Option 1 MN CN Binding Binding Binding Cache CN MN destination address MN Haddr Binding Cache Routing Header (RH) 1) CoA MN RH IPv6 RH Haddr HA CoA IPv6 in IPv6 tunneling MN, CN, HA RH CoA MN MN 3. Mobile IPv6 Mobile IPv6 Mobile IPv6 4 HA HA 3.1 { 2

3 HA MN Src: HA Dst: CoA (IPv6inIPv6) Src: CN Dst: HomeAddr (BC NOT available) Src: CN Dst: HomeAddr (BC available) Src: CN RH Dst: HomeAddr via CoA CoA CN MN Src: CoA Dst: CN HAO 1 Mobile IPv6 : MN HAO binding (BC) CN RH MN HA 2 HA HA HA 3 End-to-End 3.2 Mobile IPv6 Haddr IPv6 Destination Option HAO Routing Header Mobile IPv6 2 HAO RH HAO 20byte RH 24byte Mobile IPv6 44byte Voice over IP (VoIP) VoIP Mobile IPv6 3.3 HA Mobile IPv6 HA CN MN HA MN HA HA Haddr Haddr HA HA HA 3.4 HA HA HA HA HA HA Mobile IPv6 Haddr HA 1 HA 1 HA Mobile IPv6 3.5 Mobile IP Mobile IPv6 HA 3 Mobile IPv6 3 Mobile IPv6 IP IPv6 3

4 Mobile IPv6 4 5 End-to-End IP VIP 6) 2 2 Internet Protocol IP IP 4.3 IPv6 64bit 128bit IPv bit IPv6 Global address Aggregatable Global Unicast Address (AGUA) 9) 128bit 64bit 64bit EUI-64 10) 64bit AGUA IPv6 AGUA 128bit 64bit 2 IPv6 IPv6 64bit IPv6 IPv6 64bit IPv6 128bit IPv6 IPv6 AGUA IPv6 2 4

5 IPv6 IPv6 IPv6 2 : 128bit 64bit IPv6 IPv6 IPv6 / IPv6 IPv6 IP IPv6 IPv6 IPv6 4.4 binding IPv6 binding Mobile IPv6 VIP IP IP HA binding HA 3 IP IPv6 binding 64bit 1 Domain Name System (DNS) IP Fully Qualied Domain Name (FQDN) DNS DNS DNS binding Dynamic DNS update 7) binding DNS DNS cache DNS binding DNS Binding Agent (BA) Binding Agent binding DNS IPv6 BA IPv6 FQDN DNS IPv6 BA DNS BA DNS BA IPv6 BA IP DNS binding BA DNS BA binding DNS IPv6 BA BA binding binding binding table binding binding BA binding 3 FQDN foo.bar.com DNS BA 5

6 to BA binding TCP/UDP layer binding table binding IP layer Link layer IPv6 + 64bit binding sublayer forwardig sublayer 3 : IPv6 binding IPv6 binding BA 4.5 BA binding binding binding binding ( binding ) binding binding ICMP Destination Unreachable Message 8) (dst unreach) dst unreach dst unreach binding BA binding binding dst unreach binding binding binding dst unreach binding BA binding dst unreach 4.6 binding IPv6 IPv6 IP 1bit 1bit 64bit EUI-64 EUI-64 24bit IEEE Organizationally Unique Identier (OUI) 40bit OUI OUI 64bit AGUA 24bit OUI AGUA EUI-64 OUI 40bit IPv4 40bit OUI

7 IPv6 O IP source address src, IP destination address dst MN1 MN2 CN G1, G2, G3 MN1, MN2 64bit i1, i2 MN1, MN2, CN AGUA e1, e2, c i1 N1 N2 i2 MN1 G1+i1, G1+e1 G2+i2, G2+e2 MN2 4 CN N3 G2+c 4.8 i1 MN1 N1 MN1 2 global address 1 AGUA (G1+e1 ) 64bit 64bit (G1+i1 ) MN1 BA binding (i1, G1+i1) MN1 DNS O+i1 BA MN1 BA BA11, BA12 MN1 BA BA binding BA BA DNS BA binding 4.9 i2 MN2 MN2 BA BA21 MN2 binding MN2 G2+i2 MN1 MN2 O+i2 src, dst MN2 binding MN1 MN2 BA DNS BA21 MN1 BA21 i2 binding MN1 binding MN2 G2+i2 MN1 MN2 src G1+i1 dst G2+i2 MN2 64bit OUI IPv6 MN1-MN2 G1+i1 { G2+i2 MN1 MN2 O+i1 { O+i2 ( 5) 4.10 MN1 N3 MN1 G3+e1, G3+i1 MN1 BA21 binding (i1, G3+i1) BA BA21 DNS MN1 binding table (i2,g2+i2) G2+i2 binding MN2 i1 binding MN1 MN IPv6 G2+c CN MN1 CN G2+c IPv6 binding G1+e1 { G2+c CN 64bit c c OUI OUI binding BA DNS Mobile IPv6 5.1 End-to-End End-to-End 7

8 dst:o+i2 upper layer i2<->g2+i2 MN1 binding BA21 MN2 src:o+i1 upper layer src: G1+i1 dst: G2+i2 5 : MN1 MN2 IPv6 Mobile IPv6 binding cache HA 5.2 binding BA BA Mobile IPv6 HA BA HA BA BA HA 5.3 BA BA BA HA Haddr HA BA DNS 5.4 IPv6 IPv6 Mobile IPv6 Home Adress Option Routing Header 5.5 Mobile IPv6 IPv6 OS IPv6 Mobile IPv6 Home Address Option Mobile IPv6 HAO Mobile IPv6 Mobile IPv6 6. Mobile IPv6 End-to-End NetBSD SonyCSL 1) Deering, S., Hinden, R.: Internet Protocol, Version 6 (IPv6) Specication, RFC2460, IETF (1998). 2) Perkins, C. and David, J.: Mobility Support in IPv6, Proceedings of MOBICOM '96 (1996). 8

9 3) Johnson, D. B. and Perkins, C.: Mobility Support in IPv6, draft-ietf-mobileip-ipv6-09.txt, Internet-draft, IETF (1999) (Work in progress). 4) : Mobile IP (98-MBL-7) (1998). 5) Solomon, J.D.: Mobile IP, Prentice Hall, Reading, New Jersey (1998). 6) Teraoka, F., Uehara, K., Hideki, S. and Murai, J.: VIP: A Protocol Providing Host Mobility, Communications of the ACM, Vol. 37, No. 8, pp (1994). 7) Vixie, P., Thomson, S., Rekhter, Y., Bound, J.: Dynamic Updates in the Domain Name System, RFC2136, IETF (1997). 8) Conta, A. and Deering, S.: Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specication, RFC2463, IETF (1998). 9) Hinden, R., O'Dell, M. Deering, S.: An IPv6 Aggregatable Global Unicast Address Format, RFC2374, IETF (1998). 10) Guidelines for 64-bit Global Identier (EUI- 64) Registration Authority, ieee.org/regauth/oui/tutorials/eui64.html, IEEE (1997). 9