zephyr

History

Anas Nashif 3ae52624ff license: cleanup: add SPDX Apache-2.0 license identifier Update the files which contain no license information with the 'Apache-2.0' SPDX license identifier. Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of Zephyr, which is Apache version 2. Signed-off-by: Anas Nashif <anas.nashif@intel.com>		2019-04-07 08:45:22 -04:00
..
boards	net: samples: ipv4_autoconf: Need more buffers for same_70	2019-04-05 16:11:37 -04:00
src	…
CMakeLists.txt	license: cleanup: add SPDX Apache-2.0 license identifier	2019-04-07 08:45:22 -04:00
README.rst	…
prj.conf	…
sample.yaml	…

README.rst

.. _ipv4-autoconf-sample:

IPv4 autoconf client application
################################

Overview
********

This sample application starts a IPv4 autoconf and self-assigns
a random IPv4 address in the 169.254.0.0/16 range, it defends
the IPv4 address and resolves IPv4 conflicts if multiple
parties try to allocate an identical address.

Requirements
************

- :ref:`networking_with_host`

Building and Running
********************

These are instructions for how to use this sample application running
on a :ref:`frdm_k64f` board to configure a link local IPv4 address and
connect to a Linux host.

Connect ethernet cable from a :ref:`Freedom-K64F board <frdm_k64f>` to a Linux
host machine and check for new interfaces.

Running Avahi client in Linux Host
==================================

Assign a IPv4 link local address to the interface in the Linux system

.. code-block:: console

   $ avahi-autoipd --force-bind -D eth0


FRDM_K64F
=========

Build Zephyr the ``samples/net/ipv4_autoconf`` application using these
steps:

.. zephyr-app-commands::
   :zephyr-app: samples/net/ipv4_autoconf
   :host-os: unix
   :board: frdm_k64f
   :goals: build flash
   :compact:

Once IPv4 LL has completed probing and announcement, details are shown like this:

.. code-block:: console

   $ sudo screen /dev/ttyACM0 115200

.. code-block:: console

   [ipv4ll] [INF] main: Run ipv4 autoconf client
   [ipv4ll] [INF] handler: Your address: 169.254.218.128

Note that the IP address may change at each self assignment.

To verify the Zephyr application is running and has configured an IP address
type:

.. code-block:: console

   $ ping -I eth1 169.254.218.128