IPv6-Frag - Fragment Header for IPv6
====================================

:mod:`pcapkit.protocols.internet.ipv6_frag` contains
:class:`~pcapkit.protocols.internet.ipv6_frag.IPv6_Frag`
only, which implements extractor for Fragment Header for
IPv6 (IPv6-Frag) [*]_, whose structure is described as
below:

======= ========= ==================== =======================
Octets      Bits        Name                    Description
======= ========= ==================== =======================
  0           0   ``frag.next``               Next Header
  1           8                               Reserved
  2          16   ``frag.offset``             Fragment Offset
  3          29                               Reserved
  3          31   ``frag.mf``                 More Flag
  4          32   ``frag.id``                 Identification
======= ========= ==================== =======================

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.. automodule:: pcapkit.protocols.internet.ipv6_frag
   :members:
   :undoc-members:
   :private-members:
   :show-inheritance:

Data Structure
--------------

.. important::

   Following classes are only for *documentation* purpose.
   They do **NOT** exist in the :mod:`pcapkit` module.

.. class:: DataType_IPv6_Frag

   :bases: TypedDict

   Structure of IPv6-Frag header [:rfc:`8200`].

   .. attribute:: next
      :type: pcapkit.const.reg.transtype.TransType

      Next header.

   .. attribute:: offset
      :type: int

      Fragment offset.

   .. attribute:: mf
      :type: bool

      More flag.

   .. attribute:: id
      :type: int

      Identification.

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.. [*] https://en.wikipedia.org/wiki/IPv6_packet#Fragment