:orphan:

.. title:: CONFIG_NET_HOSTNAME_UNIQUE_UPDATE

.. kconfig:: CONFIG_NET_HOSTNAME_UNIQUE_UPDATE

CONFIG_NET_HOSTNAME_UNIQUE_UPDATE
#################################

*Update unique hostname*

Type: ``bool``

Help
====

.. code-block:: none

    This will update the unique hostname on link address changes. By
    default, this option is disabled, which means the unique hostname
    is set once at start-up and is not updated afterwards.

Direct dependencies
===================

\ :kconfig:`NET_HOSTNAME_UNIQUE <CONFIG_NET_HOSTNAME_UNIQUE>` && \ :kconfig:`NET_HOSTNAME_ENABLE <CONFIG_NET_HOSTNAME_ENABLE>` && \ :kconfig:`NETWORKING <CONFIG_NETWORKING>`

*(Includes any dependencies from ifs and menus.)*

Defaults
========

No defaults. Implicitly defaults to ``n``.

Kconfig definition
==================



At ``<Zephyr Subsystem>/net/Kconfig.hostname:27``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Zephyr Subsystem>/Kconfig:39`` → ``<Zephyr Subsystem>/net/Kconfig:83``

Menu path: (Top) → Sub Systems and OS Services → Networking → Link layer and IP networking support → Add hostname to the device → Make hostname unique

.. code-block:: kconfig

    config NET_HOSTNAME_UNIQUE_UPDATE
    	bool "Update unique hostname"
    	depends on NET_HOSTNAME_UNIQUE && NET_HOSTNAME_ENABLE && NETWORKING
    	help
    	  This will update the unique hostname on link address changes. By
    	  default, this option is disabled, which means the unique hostname
    	  is set once at start-up and is not updated afterwards.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*