.. _example_interfaces_cellular_traffic_policy_checklinkhook:

###############
Check Link Hook
###############

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).
packet stack.

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

**********************
Test Early Packet Drop
**********************

Description
===========

A traffic policy is configured in DUT0 to drop
all incoming traffic at the link stage. ARP and
UDP packets are allowed.

Scenario
========

.. include:: checklinkhook/testearlypacketdrop

.. raw:: html

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