.. _example_interfaces_cellular_traffic_policy_checklinkhook:

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Check Link Hook
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This scenario shows how to attach a traffic policy to the `link` hook in a Cellular interface.
This hook is triggered at a very early stage of the network packet stack (level 2 layer).

.. image:: google.svg
  :width: 800

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Test Early Packet Drop
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Description
===========

In DUT0, the cellular interface is configured with a traffic policy to drop all incoming
traffic at the link stage and only allow ARP and UDP packets.

Scenario
========

.. include:: checklinkhook/testearlypacketdrop

.. raw:: html

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