.. _example_protocols_ip_prefix-list_checkprefix:

############
Check Prefix
############


.. sidebar:: Contents

  .. contents::
    :depth: 2
    :local:

This scenario shows how to configure a prefix-list for filtering
prefixes with different restrictions. Several connected routes will
be available through dummy interfaces but only some will be exported.

.. image:: topology.svg
  :width: 400

*******************
Prefix strict match
*******************

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

Several dummy interfaces are created in DUT0 allowing their
connected routes to be exported. Only the one that exactly matches
the prefix configured in the prefix-list will be exported to DUT1.

Scenario
========

.. include:: checkprefix/prefixstrictmatch

.. raw:: html

  <hr>

***************************************
Lower or equal prefix mask lenght match
***************************************

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

Several dummy interfaces are created in DUT0 allowing their
connected routes to be exported. Only the ones with a prefix
length lower than or equal to 16 will be included.

Scenario
========

.. include:: checkprefix/lowerorequalprefixmasklenghtmatch

.. raw:: html

  <hr>

*****************************************
Greater or equal prefix mask lenght match
*****************************************

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

Several dummy interfaces are created in DUT0 allowing their
connected routes to be exported. Only the ones with a prefix
length greater than or equal to 18 will be included.

Scenario
========

.. include:: checkprefix/greaterorequalprefixmasklenghtmatch

.. raw:: html

  <hr>