Internet Protocol version 6
<networking, protocol> (IPv6, IPng, IP next generation) The most viable
candidate to replace the current Internet Protocol. The primary purpose of IPv6
is to solve the problem of the shortage of IP addresses.
The following features have been purposed: 16-byte addresses instead of the
current four bytes; embedded encryption - a 32-bit Security Association ID
(SAID) plus a variable length initialisation vector in packet headers; user
authentication (a 32-bit SAID plus variable length authentication data in
headers); autoconfiguration (currently partly handled by Dynamic Host
Configuration Protocol); support for delay-sensitive traffic - a 24 bit flow ID
field in headers to denote voice or video, etc.
One possible solution is based on the TUBA protocol (RFC 1347, 1526, 1561) which
is itself based on the OSI Connectionless Network Protocol (CNLP). Another is
TP/IX (RFC 1475) which changes TCP and UDP headers to give a 64-bit IP address,
a 32-bit port number, and a 64 bit sequence number.
RFC 1550 is a white paper on IPng.
IPv6.org.
["Doubts About IPng could create TCP/IP chaos", Johna Till Johnson, Data
Communications, Nov 1994].
(2004-06-17)
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