橡c13.PDF
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1 IP (Internet Protocol) Version 6 (The University of Tokyo) (Information Technology Center) (Hiroshi Esaki) hiroshi@wide.ad.jp 1 Where the Internet Goes? Internet for Everything Everything over IP IP Internet for Everyone Everyone with IP IP Internet Everywhere/Anytime/Anyhow Everywhere and Anyhow to to IP IP IP is for Everyone Quantitative Scalability until Massive Scalability Qualitative Scalability Heterogeneity (e.g., Bandwidth, QoS/CoS, Media, etc.,) 2 1
2 (1) ( )? (2) 9.6Kbps (5) QoS/CoS (6) (10) (URL ) 3 4 2
3 Internet for Everyone - - B to B, B to C, C to C toward End-to-End IPv6 Mobile IP IPSec Diff-Serv, RSVP DWDM, IPv6 IPv6 PIM, MBGP MPLS 5 CIDR IP IPv6 6 3
4 Internet 7 IPv4 8 4
5 Why NAT is not good? 9 Why IPv6 is good? 10 5
6 End-to-End (development) (Deployment) Applications Business model NOBODY KNOWS WHAT WILL HAPPEN! (Deployment) Running Code 11 NAT, Proxy Ad Hoc IP Version 6 (128 bits ) Intermediate Proxy Transparent firewall 12 6
7 IPv6 13 IPng IPv6 IP Next Generation IPng SIPP IETF IPv6 - IP
8 IPng 3 CATNIP(Common Architecture for the Internet) SIPP(Simple Internet Protocol Plus) 64 TUBA(TCP/UDP over CLNP-Addressed Network) 128 SIPP16 IPv6 IP 15 Address of IPv6 (IP version 6) IPv6 Network RFC2133 API (BSD socket) RFC1833 IPv4 Network IPv6 Network IPv6 packet Payload IPv6 RFC1884 RFC1924 IPv6 RFC1887/2073 IP - IPv6 in IPv4 ( ) - IPv4 in IPv6 (*) IPv4 IPv6 RFC1933 (i) Tunneling (ii) NAT (iii) Dual-Stack 16 8
9 IPv6 IPv (Multi-Protocol), 17 IPv6 IPv4-8 IP TTL(Time to Live) Hop Limit 18 9
10 IPv4 - QOS End2End 19 IPv = 4,294,967, IPv = 340,282,366,920,938,463,463,374,607,431,768,211,
11 IP version 6 (IPv6) Header Format version Traffic Class Flow Label Payload Length Next Header Type source IP address (128 bits) destination IP address (128 bits) options (if any) Hop-Limit 40 Bytes TCP/UDP data IPv6 Version 6 Traffic Class (e.g., Diff-Serve ECN ) Flow Label Payload Length Next Header RFC1700 Hop Limit 1 0 Source Address Destination Address 22 11
12 IPv TTL Hop Limit ( Protocol Next Header TOS Traffic Class 23 IPv
13 ICMP 8 25 IPv
14 TLV TLV(Type-Length-Value) 27 MTU MTU MTU ICMP Too Big Message 10 ) MTU 28 14
15 ( ) 3ffe:0501:0008:1234:0260:97ff:fe40:efab ff02:0000:0000:0000:0000:0000:0000: (1 ) FF01:0:0:0:0:0:0:43 FF01::43 0:0:0:0:0:0:FF01:9123 ::FF01:9123 IPv4 0:0:0:0:0:0: (:: ) 0:0:0:0:0:FFFF: (::FFFF: ) 30 15
16 IPv6 31 IPv
17 Address Type FP(Format Prefix) Reserved (e.g., IPv4 capsulate) /256 Unassigned /256 Reserved for NSAP Allocation /128 Reserved for IPX Allocation /128 Unassigned /128 Unassigned /32 Unassigned /16 Aggregatable Global Address 001 1/8 Providor-base Aggregatable 010 1/8 Global Addresses - IANA /256 - RIPE-NCC /256 - Internic /256 - APNIC / Address Type (Cont ) Test Address /256 Unassigned 011 1/8 Geographical Address Assign 100 1/8 Unassigned 101 1/8 Unassigned 110 1/8 Unassigned /16 Unassigned /32 Unassigned /64 Unassigned /128 Unassigned /512 Link Local Use Addresses /1024 Site Local Use Addresses /1024 Multicast Addresses /
18 CIDR (variable length net-id, supernetting) Aggregatable global unicast address NSAP,IPX site-local-use link-local-use IPv4-capable address 35 Aggregatable Global Unicast Address Provider Based Address 001 TLA: Top-Level Aggregator NLA*: Next-Level Aggregator(s) SLA*: Site-Level Aggregator(s) 36 18
19 TLA: Top-Level Aggregator 2 13 = 8,192 Default-free A A 37 TLA - as BCP(Best Current Practice) - A 38 19
20 64 IEEE 64 EUI : company_id ( ) 40 : extension identifier 802 (48bit) EUI-64 FFFE A-BC-DE FF-FE-9A-BC-DE 39 IPv4 IPv6 IPv4 IPv6 IPv4/IPv6 IPv IPv4 IPv6 IPv FFFF 40 20
21 Local-use IPv6 Unicast Addresses NDP DHCP /
22 (unspecified address) 0:0:0:0:0:0:0:0 IPv6 0:0:0:0:0:0:0:1 IPv E F
23 FF00:0:0:0:0:0:0:0 FF01:0:0:0:0:0:0:0 : FF0F:0:0:0:0:0:0:0 FF01:0:0:0:0:0:0:1 IPv6 FF02:0:0:0:0:0:0:1 IPv6 FF01:0:0:0:0:0:0:2 IP FF02:0:0:0:0:0:0:2 IP FF02:0:0:0:0:0:0:C DHCP / FF02:0:0:0:0:1:x:x
24 47 ( ) 48 24
25 (Multicast) 50 25
26 Aggrigatable Global Address Aggrigatable Global Address Multihome Provider GSE (= 8+8?) 51 GSE Global, Site, End-system, e.g. TCP IETF WG 52 26
27 NDP Neighbor Discovery Protocol ICMP 53 Router Discovery Prefix Discovery Parameter Discovery Address Autoconfigration Address Resolution Next-Hop determination Neighbor Unreachability Detection Duplicate Address Detection Redirect 54 27
28 ICMP/IGMP ICMP; Internet Control and Management Protocol - IP - ICMP (i) ping (ii) traceroute (iii) Router_Discovery IGMP; Internet Group Management Protocol - 55 ICMP Domain Name Request/Reply ICMP redirection Router discovery ( ) ( ) Traceroute Destination unreachable ICMP Source Quench ICMP Source Quench ( ) 56 28
29 DHCP Dynamic Host Configuration Protocol DHCP - DNS DNS 57 Domain Name System DNS IP IPv6 AAAA ( IP IP6.INT 4321:0:1:2:3:4:567:89ab b.a IP6.INT
30 CIDR RIPv6, OSPFv6, BGP Neighbor Discovery Protocol
31 IP - - / ISP1 Multi-Home Network 4321:0:1:2::::/64 ISP2 AB34:1:0:2::::/64 (1) 4321:0:1:2:3:4:567:89ab (2) AB34:1:0:2:1:0:abc: H1 3ffe:0:0:2:: :0:2/80 ISP1 H2 R1 Link1 R3 (1) 4321:0:1:2::10 (2) AB34:1:0:2::7 R2 R4 Multi-Home Network ISP2 AB34:1:0/80 Link2 : Native, 4321:0:2:1/64 : Tunnel, 4321:0:2:1/64 : Native, AB34:1:0:1/64 : Tunnel, AB34:1:0:1/64 (1) dst=4321:0:1:2::10 H1 R1 R3 H2 (2) dst=ab34:1:0:2::7 H1 R2 R4 H2 Link1 (3) dst=4321:0:1:2::10 H1 R1 (R2) R4 H2 Link2 (4) H1 R2 (R1) R3 H
32 keyed MD5 DES CBC
33 2 AH Authentication Header ESP Encapsulating Security Payload 65 IPv
34 67 IPv4 IPv6 IPv4 IPv6 IPv6 DNS IPv6 Internet IPv
35 IPv4 IPv6 IPv6 IPv4 IPv4 IPv6 IPv4 IPv6 69 IPv4 IPv4/v6 IPv6 IPv4 IPv4 IPv6 IPv6 IPv4 IPv4/v6 ( ) IPv
36 IPv4 IPv6 71 IPv4 IPv6 1. IPv6 IPv4 - (a) IPv4 IPv6 (b) IPv6 IPv4 2. IPv6 IPv4 - NAT - SOCKS 72 36
37 IPv6 IPv4 IPv6 Host IPv6 R IPv4 R IPv6 IPv6 Host IPv6 Data De-Cap IPv4 IPv6 Data En-Cap IPv6 Data IPv4 IPv6 IPv4 Host IPv4 R IPv6 R IPv4 IPv4 Host IPv4 Data De-Cap IPv6 IPv4 Data En-Cap IPv4 Data 73 NAT IPv6/IPv4 Src_v6=FEDC:BA98::7654:3210 src_v4= #2 #1 dst=prefix:: src=fedc:ba98::7654:3210 DNS resolution : B.v4.com dst= src= (a) v6 v
38 NAT IPv6/IPv4 A.v6.com FEDC:BA98::7654: (assigned) dst_v4= dst_v6=fedc:ba98::7654:3210 #2 #1 dst= dst= FEDC:BA98::7654:3210 src= src= PREFIX:: DNS resolution : A.v6.com (b) v4 v B IPv4 DNS : B SOCKS Router DNS SOCKS mail.a.com : A1:1:1:1::3 : A1:1:1:1::4 ftp.a.com : A1:1:1:1::5 A1:1:1:1::1 Application Gateway socks.a.com A1:1:1:1::2 DNS socks.a.com : A1:1:1:::2 IPv6 mail.a.com A1:1:1:1::3 A1:1:1:1::4 ftp.a.com A1:1:1:1::5 4. SOCKS 76 38
39 IPv6 77 IPv6 (1) (2) (3) (4) 78 39
40 (1) IPv6 RFC1883 IPv6 Specification RFC1884 IPv6 Addressing Architecture RFC1885 ICMPv6 RFC1886 DNSv6 79 IPv6 (by WIDE) KAME 3 (NRL, INRIA, KAME) TAHI ( YDC WIDE) 80 40
41 Functional Integration into KAME by WIDE Project Routing Protocol - Multicast PIM-SM & PIM-DM - Unicast : OPSF for IPv6 QoS/CoS Control - Diff-Serv Integration with ALTQ(Sony-CSL) - BB(Bandwidth Broker) with COPS Mobile IP IPv6/v4 Internetworking - NAT (Hitachi, KAME) - SOCKS (Fujitsu, NEC, KAME) Label Switch (MPLS) - Integrate IPv6, PIM, Diff-Serve and BB 81 IPv6 - - (1) Microsoft Windows - Bump-In-The-Stack by - Windows 2000 (2) Apple MAC OS 9 (3) UNIX with KAME Stack Free-BSD, BSDI, NetBSD, BSD/OS (4) Solaris (1) cisco, Nortel, Telebit, etc., (2) NEC etc 82 41
42 Hitachi V6 stack for Win98 Windows(R) 95/98/ NT4.0 IPv4 IPv4 application (Telnet, Ftp, Mail, Web..) TCP/IPv4 NDIS mini port driver D N S IPT Network Card Driver Network Card IPv4 IPv6 *IPT: IP Translator :No need to change!! IPv6 83 (2) 6bone Experimental Network Production Quality Network ptla(experimental) s-tla( ) 6bone Routing Registry IX for IPv6 6TAP NSPIXP6 ( ), 84 42
43 (2) 6bone Research Network 6REN(IPv6 Research and Educational Network) Industries v6 IPv6 IIJ ( ) 85 ATT Lab Europe pana.net NAIST shudo-u MERIT SOUM Corp. Osaka Univ. Cisco DEC NUS-IRDU JAIST Nara Komatsu Hiroshima Hitachi Kyoto SES Inc. hiroshima-cu hiroshima-u Kyushu Univ. Kyoto Univ. Keio SFC Keio ST Fujisawa TDI Toshiba Fujitsu Fujitsu Lab. IIJLAB Otemachi KAME kame.net YDC INTEC ATM T1 Ether 64K 128K ISDN Tunnel KEK IMASY Nezu Aomi Univ. Tokyo 6bone event team Tokyo DTI itojun.org Nihon Univ. YOKOGAWA MGCS Sony Titech NEC IRI Inc. NTT Software 86 Lab. 43
44 IPv6 6REN Initiative, v6 87 [ ] IPv6, ( ), Networld+Interop96, 1996 RFC, ASCII,,
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