Dual Stack
=============

.. panels::
    :container: container pb-4
    :column: col-lg-12 p-2
    :card: shadow

    .. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        **What is IPv6 Dual Stack?**

        IPv6 Dual Stack is a transition mechanism where devices and networks run both IPv4 and IPv6 protocols simultaneously, allowing communication over either protocol as needed.

    .. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        **Why is IPv6 Dual Stack useful?**

        It ensures compatibility with existing IPv4 infrastructure while enabling adoption of IPv6, facilitating a smooth transition without service disruption.

    .. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        **How does IPv6 Dual Stack work?**

        Devices maintain both IPv4 and IPv6 addresses and can send or receive traffic using either protocol depending on the destination's capabilities and network configuration.

    .. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        **Where is IPv6 Dual Stack used?**

        Dual Stack is commonly deployed in enterprise networks, ISPs, and internet service providers to support both legacy IPv4 and modern IPv6 clients.

    .. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        **Which OSI layer does IPv6 Dual Stack belong to?**

        Dual Stack operates at the **Network Layer (Layer 3)** by supporting simultaneous use of IPv4 and IPv6 protocols.

    .. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        **Is IPv6 Dual Stack Windows specific?**

        No, Dual Stack support is available on all major operating systems, including Windows, Linux, and macOS.

    .. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        **Is IPv6 Dual Stack Linux specific?**

        No, Linux has full support for Dual Stack configurations as part of its networking stack.

    .. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        **Which Transport Protocol is used by IPv6 Dual Stack?**

        Dual Stack supports transport protocols running over both IPv4 and IPv6, such as **TCP**, **UDP**, and **ICMP**/**ICMPv6**.

    .. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        **Is IPv6 Dual Stack using client-server model?**

        Dual Stack supports all communication models — client-server, peer-to-peer, and multicast — by enabling dual protocol stacks on devices.

.. panels::
        :container: container pb-4
        :column: col-lg-12 p-2
        :card: shadow

        Topics in this section,

                * :ref:`Learnings in this section <Dual_Stack_step1>`

                * :ref:`Terminology <Dual_Stack_step2>`

                * :ref:`Version Info <Dual_Stack_step3>`

                * :ref:`Dual Stack Basic Setup on Ubuntu using IPv6 <Dual_Stack_step18>`
                
                * :ref:`Reference links <Dual_Stack_step17>`

.. _Dual_Stack_step1:

.. tab-set::

    .. tab-item:: Learnings in this section

        * In this section, you are going to learn

.. _Dual_Stack_step2:

.. tab-set::

    .. tab-item:: Terminology
        
       * Terminology


.. _Dual_Stack_step3:

.. tab-set::

    .. tab-item:: Version Info
    
         * Version Info


.. _Dual_Stack_step18:

.. tab-set::

   .. tab-item:: Dual Stack  Basic Setup on Ubuntu using IPv6

     * setup

.. _Dual_Stack_step17:

.. tab-set::

    .. tab-item:: Reference links
     
       * Reference links