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Remove special chapter about IPv6 address formats from ARM

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In 2022, IPv6 is not anything unusual, and it was really odd
to have it in a separate section next to a huge list of RFCs.

Fixes: #1918
(cherry picked from commit 2774b497a6)
This commit is contained in:
Petr Špaček
2022-02-09 18:17:19 +01:00
parent 519660c84a
commit f0d5e029bd
2 changed files with 0 additions and 47 deletions
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3
doc/arm/advanced.rst
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@@ -811,9 +811,6 @@ understand the binary label format at all anymore, and return an
error if one is given. In particular, an authoritative BIND 9 name server will
not load a zone file containing binary labels.
For an overview of the format and structure of IPv6 addresses, see
:ref:`ipv6addresses`.
Address Lookups Using AAAA Records
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

44
doc/arm/general.rst
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@@ -14,50 +14,6 @@
General DNS Reference Information
=================================
.. _ipv6addresses:
IPv6 Addresses (AAAA)
---------------------
IPv6 addresses are 128-bit identifiers, for interfaces and sets of
interfaces, which were introduced in the DNS to facilitate scalable
Internet routing. There are three types of addresses: *Unicast*, an
identifier for a single interface; *Anycast*, an identifier for a set of
interfaces; and *Multicast*, an identifier for a set of interfaces. Here
we describe the global Unicast address scheme. For more information, see
:rfc:`3587`, "IPv6 Global Unicast Address Format."
IPv6 unicast addresses consist of a *global routing prefix*, a *subnet
identifier*, and an *interface identifier*.
The global routing prefix is provided by the upstream provider or ISP,
and roughly corresponds to the IPv4 *network* section of the address
range. The subnet identifier is for local subnetting, much like
subnetting an IPv4 /16 network into /24 subnets. The interface
identifier is the address of an individual interface on a given network;
in IPv6, addresses belong to interfaces rather than to machines.
The subnetting capability of IPv6 is much more flexible than that of
IPv4; subnetting can be carried out on bit boundaries, in much the same
way as Classless InterDomain Routing (CIDR), and the DNS PTR
representation ("nibble" format) makes setting up reverse zones easier.
The interface identifier must be unique on the local link, and is
usually generated automatically by the IPv6 implementation, although it
is usually possible to override the default setting if necessary. A
typical IPv6 address might look like:
``2001:db8:201:9:a00:20ff:fe81:2b32``.
IPv6 address specifications often contain long strings of zeros, so the
architects have included a shorthand for specifying them. The double
colon (``::``) indicates the longest possible string of zeros that can
fit, and can be used only once in an address.
.. _bibliography:
Bibliography (and Suggested Reading)
------------------------------------
.. _rfcs:
Requests for Comment (RFCs)