IPv6

IPv4の4倍のbit長の128bitアドレスを持つInternetプロトコル群、星サイズでは不足しないはず。

RFC 8200 IPv6

RFC 4443 ICMPv6

RFC 4291 Address

RFC 9673 IPv6 Hop-by-Hop Options Processing Procedures

RFC 8200 Internet Protocol, Version 6 (IPv6) Specification

RFC 6980 Security Implications of IPv6 Fragmentation with IPv6 Neighbor Discovery

RFC 6936 Applicability Statement for the Use of IPv6 UDP Datagrams with Zero Checksums

RFC 5942 IPv6 Subnet Model: The Relationship between Links and Subnet Prefixes

RFC 4944 Transmission of IPv6 Packets over IEEE 802.15.4 Networks

RFC 4884 Extended ICMP to Support Multi-Part Messages

RFC 4862 IPv6 Stateless Address Autoconfiguration

RFC 4861 Neighbor Discovery for IP version 6 (IPv6)

RFC 4291 IP Version 6 Addressing Architecture

RFC 3513 → 4291

RFC 2928 Initial IPv6 Sub-TLA ID Assignments

RFC 2780 IANA Allocation Guidelines For Values In the Internet Protocol and Related Headers → Update 4443

RFC 2463 (旧) ICMPv6 → 4443

RFC 2462 (旧) IPv6 Stateless Address Autoconfiguration → 4862

RFC 2461 (旧) Neighbor Discovery for IP Version 6 (IPv6) → 4861

RFC 2460 (旧) Internet Protocol, Version 6 (IPv6) Specification → 8200

RFC 1971 (旧) IPv6 Stateless Address Autoconfiguration → 2462

RFC 1970 (旧) Neighbor Discovery for IP Version 6 (IPv6) → 2461

RFC 1885 (旧) Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification → 2463

RFC 1883 (旧) Internet Protocol, Version 6 (IPv6) Specification → 2460

Header

Version (4bit) = 6

Traffic Class (8bit) RFC 8200 Section 7

Flow Label (20bit) RFC 8200 Section 6

Payload Length (16bit) Header以外のサイズ

Next Header (8bit)

Hop Limit (8bit)

Source Address(128bit) RFC 4291

Destination Address(128bit) RFC 4291

接続方式がいろいろある

fe80::/10 リンクローカルアドレス

インターフェース毎に振られる

ユニークローカルアドレス IPv4のローカルアドレス相当

プロフェッショナルIPv6第2版