.. _example_interfaces_tunnel_nhrp_dynamicreconfiguration:

#######################
Dynamic Reconfiguration
#######################

This scenario shows how to create a GRE tunnel and perform some
dynamic configuration changes on it.

.. image:: gre.svg
  :width: 800

**********************************
Test Dynamic Changes On GRE Tunnel
**********************************

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

A tunnel interface is configured in each node and
the 'Ping' command is used to check network
connectivity (ICMP protocol). Afterwards, NHRP
configuration is replaced by a fixed remote
network and ICMP connectivy is checked again.
Finally, initial configuration is restored to
ensure NHRP is working fine.

Scenario
========

.. include:: dynamicreconfiguration/testdynamicchangesongretunnel

.. raw:: html

  <hr>