.. _example_interfaces_ethernet_ip_arp_proxy:

#####
Proxy
#####

Proxy ARP is a technique that allow a server on a given network
answers the Address Resolution Protocol (ARP) queries for an IP
address that is not on that network.

.. image:: proxy.svg
  :width: 800

*****************************
Test ARP Proxy Same Interface
*****************************

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

In this scenario, proxy ARP replies are sent back to the
same interface from which the ARP request/solicitation
was received (``eth0``). This is done to support
features like RFC#3069, where the individual ports are
NOT allowed to communicate with each other, but they are
allowed to talk to the upstream router.

Scenario
========

.. include:: proxy/testarpproxysameinterface

.. raw:: html

  <hr>

******************************
Test ARP Proxy Other Interface
******************************

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

In this scenario, proxy ARP replies (using
``eth0`` interface) for addresses in a different
network (``eth1`` in this case).

Scenario
========

.. include:: proxy/testarpproxyotherinterface

.. raw:: html

  <hr>