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An IPv6 packet has two parts: a header and payload. The header consists of a fixed portion with minimal functionality required for all packets and may be followed by optional extensions to implement special features. The fixed header occupies the first 40 octets (320 bits) of the IPv6 packet. It contains the source and destination addresses ...
In 2009, many DNS resolvers in home-networking NAT devices and routers were found to handle AAAA records improperly. [72] ... Represent any IPv6 address in 20 octets.
An IPv6 packet is the smallest message entity exchanged using Internet Protocol version 6 (IPv6). ... A minimum MTU of 1,280 octets is mandated by IPv6, ...
An IPv6 address consists of sixteen octets, displayed in hexadecimal representation (two hexits per octet), using a colon character (:) after each pair of octets (16 bits are also known as hextet) for readability, such as 2001:0db8:0000:0000:0123:4567:89ab:cdef. [5]
IPv6 IPv6 Encapsulation (6to4 and 6in4) RFC 2473: 0x2A 42 SDRP Source Demand Routing Protocol: RFC 1940: 0x2B 43 IPv6-Route Routing Header for IPv6: RFC 8200: 0x2C 44 IPv6-Frag Fragment Header for IPv6: RFC 8200: 0x2D 45 IDRP Inter-Domain Routing Protocol: 0x2E 46 RSVP Resource Reservation Protocol: RFC 2205: 0x2F 47 GRE Generic Routing ...
Decomposition of an IPv6 address from hexadecimal representation to its binary value. In IPv6, the address size was increased from 32 bits in IPv4 to 128 bits, thus providing up to 2 128 (approximately 3.403 × 10 38) addresses. This is deemed sufficient for the foreseeable future.
Obsolete; merged into IPv6 in 1995. [3] 6: Internet Protocol version 6 (IPv6) [2] Active. 7: TP/IX The Next Internet (IPv7) [5] Obsolete. [6] 8: P Internet Protocol (PIP) [7] Obsolete; merged into SIP in 1993. 9: TCP and UDP over Bigger Addresses (TUBA) Obsolete. [8] 9: IPv9: April Fools' Day joke. [9] 9: Chinese IPv9: Abandoned. 10–14 ...
This usage of hex to mean 16 is also in line with the similar IEEE 1754 term hexlet indicating 16 octets. [5] Although the word hextet is not officially recognized in the IETF documents, the word is used in technical literature on IPv6 [6] [7] published after the Internet Draft.