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2 c 2006 NTT Communications Corp. All rights reserved. 3 IP Version 6 Addressing Architecture (RFC4291) deprecated IPv4-Compatible IPv6 Address :: /96 IPv6 Linux sit Windows Site-Local IPv6 Unicast Address FEC0::/16 DNS Discovery RFC3879 Deprecating Site Local Address NSAP 0200::/7 c 2006 NTT Communications Corp. All rights reserved. 4 2

3 6bone RFC3701 6bone Phaseout FFE::/ IX Looking Glass 3FFE:FFFF::/ :DB8::/32 c 2006 NTT Communications Corp. All rights reserved. 5 ip6.int ip6.int RFC3152 deprecated ip6.int Lame delegation NS zone ip6.arpa ip6.int c 2006 NTT Communications Corp. All rights reserved. 6 3

4 c 2006 NTT Communications Corp. All rights reserved. 7 ULA (RFC4193) Unique Local IPv6 Unicast Address FD00::/ Prefix L Global ID Subnet ID Interface ID Interface ID 1 0 L=0 c 2006 NTT Communications Corp. All rights reserved. 8 4

5 Shim6 - Level 3 multihoming shim protocol Node NAT Mobile IP draft-ietf-shim6-proto-06 Node A TCP UDP ICMP SCTP? AH ESP Fragment Dest opt src ULID(A)=L1(A) dst ULID(B)=L1(B) shim src L2(A) dst L3(B) Node B TCP UDP ICMP SCTP? AH ESP Fragment Dest opt Upper Layer IDentifiers network level Locators src ULID(A)=L1(A) dst ULID(B)=L1(B) shim src L2(A) dst L3(B) c 2006 NTT Communications Corp. All rights reserved. 9 Shim6 Identifier ULA OK? Locator Probe Hash Base Addresses (HBA) CGA Prefixes Hash Interface ID redirect BGP Shim6 c 2006 NTT Communications Corp. All rights reserved. 10 5

6 Default Router Preferences and More-Specific Routes RFC4191 RA 3 2bits Type Code Checksum Cur Hop Limit M O H Prf Resvd Reachable Time Retrans Timer RA 11 Router Lifetime RA RA Type Length Prefix Length Resvd Prf Resvd Route Lifetime Prefix c 2006 NTT Communications Corp. All rights reserved. 11 Multi Prefix OK Stateful inspection Unicast Reverse Path Forward (urpf) Prefix Policy RFC3484 RA DHCPv6 Windows XP, 2003, c 2006 NTT Communications Corp. All rights reserved. 12 6

7 IPv6 Host-to-Router Load Sharing (RFC4311) Hash Per Packet On Off Destination Cache Hash Destination Cache c 2006 NTT Communications Corp. All rights reserved. 13 Portable Assignment for Multi-homing Shim6 Portable 9 APNIC 22 /48 3 Punching Hole 12 c 2006 NTT Communications Corp. All rights reserved. 14 7

8 RIR ARIN U.S. Securities & Exchange Commission (2620::/48) S. D. Warren Services Co. (2620:0:10::/48) CollabNet (2620:0:20::/48) Tellme Networks IDC 001 (2620:0:30::/48) YouTube, Inc. (2620:0:40::/48) University of Texas at Austin (2620:0:50::/48) Lucent Technologies Inc. (2620:0:60::/48) Meta Interfaces, LLC (2620:0:70::/48) Office of Personnel Management (2620:0:80::/48) CNET Networks Inc. (2620:0:90::/48) Science Applications International Corporation (SAIC) (2620:0:a0::/48) RIPE 3 AFRINIC LACNIC: c 2006 NTT Communications Corp. All rights reserved. 15 c 2006 NTT Communications Corp. All rights reserved. 16 8

9 Teredo (RFC4380) Tunneling IPv6 over UDP through Network Address Translations (NATs) NAT IPv6 Teredo Server Teredo Relay IPv4 Global IPv4 Private Teredo Client NAT Prefix Server IPv4 Flags Port Client IPv4 c 2006 NTT Communications Corp. All rights reserved. 17 Teredo Cone NAT Full Restricted Symmetric NAT 2001:0000::/32 3FFE:831F::/32 Prefix Policy Windows Update 6to4 2002::/16 6to4 IP-in-IP / :xxx.yyy.zzz.www::/48 Teredo /128 c 2006 NTT Communications Corp. All rights reserved. 18 9

11 Source-Specific Multicast for IP (RFC4607) Overview RFC3569 Informational MLDv2 2 RFC3810 MLDv2 RFC4604 FF3x::/96 (RFC4607) FF3x::/32 FF::/8 multicast FF3x::0000:0000 FF3x::3FFF:FFFF FF3x::4000:0000 FF3x::4000:0001 FF3x::7FFF:FFFF FF3x::8000:0000 FF3x::FFFF:FFFF SSM IANA c 2006 NTT Communications Corp. All rights reserved. 21 IGMP/MLD-Based Multicast Forwarding (RFC4605) MLD Proxy Sender MLD Multicast Listener PIM MLD MLD Proxy MLD Multicast Listener Listener MLD MLD OK c 2006 NTT Communications Corp. All rights reserved

12 c 2006 NTT Communications Corp. All rights reserved. 23 IPv6 Host Configuration of DNS Server Information Approaches (RFC4339) DNS 3 DHCPv6 Option Information Request Reply Stateful RA Option Well-known Anycast Address FEC0:0:0:FFFF::[123] IESG Note RA option Well-known Anycast c 2006 NTT Communications Corp. All rights reserved

13 IPv6 Node Information Queries RFC4620 Node Unicast IPv4 FF02::2:FF00:0000/104+MD5 /24 Unicast FF02::1 c 2006 NTT Communications Corp. All rights reserved. 25 Mobile IPv Mobile Node Identifier Option for Mobile IPv Mobile IPv6 Fast Handovers for Networks 4285 Authentication Protocol for Mobile IPv Mobile IPv6 MIB 4449 Securing Mobile IPv6 Route Optimization Using a Static Shared Key 4487 Mobile IPv6 and Firewalls 4640 Problem Statement for bootstrapping Mobile IPv6 DHCPv Information Refresh Time Option for Dynamic Host Configuration Protocol for IPv DHCP: IPv4 and IPv6 Dual-Stack Issues 4580 DHCPv6 Relay Agent Subscriber-ID Option 4649 DHCPv6 Relay Agent Remote-ID Option 4676 Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration Information 4704 DHCPv6 Client FQDN Option Multicast 4286 Multicast Router Discovery 4489 A Method for Generating Link-Scoped IPv6 Multicast Addresses 4604 IGMPv3 and MLDv2 for Source-Specific Multicast c 2006 NTT Communications Corp. All rights reserved

14 4294 IPv6 Node Requirements 4330 Simple Network Time Protocol Version 4 for IPv4, IPv6 and OSI 4338 Transmission of IPv6, IPv4, and ARP Packets over Fibre Channel 4389 Neighbor Discovery Proxies (ND Proxy) 4429 Optimistic DAD for IPv ICMPv6 for IPv6 Specification 4472 Operational Considerations and Issues with IPv6 DNS 4554 Use of VLANs for IPv4-IPv6 Coexistence in Enterprise Networks 4581 CGA Extension Field Format 4584 Extension to Sockets API for Mobile IPv BGP-MPLS IP VPN Extension for IPv6 VPN RADIUS MIB 4692 Considerations on the IPv6 Host Density Metric c 2006 NTT Communications Corp. All rights reserved. 27 c 2006 NTT Communications Corp. All rights reserved

15 End Site Allocation Policy /48 APNIC-089 LIR ISP Subnet 1 /64 ISP - HD Ratio /56 /48 /56 x 256 IPv4 IPv6 8bits c 2006 NTT Communications Corp. All rights reserved. 29 HD Ratio IP RFC3194 HD ratio? log( ) log( ) c 2006 NTT Communications Corp. All rights reserved

今からはじめるIPv6　～IPv6標準化最新動向編～

今からはじめるIPv6　～IPv6標準化最新動向編～ IPv6 IPv6 InternetWeek2010 Copyright 2010 Yoshiaki Kitaguchi, All rights reserved. IPv6! IPv6! IETF InternetWeek2010 Copyright 2010 Yoshiaki Kitaguchi, All rights reserved. 2 IPv6 InternetWeek2010 Copyright