.. _ad-hoc-network-config:

Ad-Hoc Configuration
~~~~~~~~~~~~~~~~~~~~

You can use :ref:`opt-networking.localCommands` to specify shell
commands to be run at the end of ``network-setup.service``.
This is useful for doing network configuration not covered by the existing
NixOS modules. For instance, to statically configure an IPv6 address:

.. parsed-literal::

    :ref:`opt-networking.localCommands`  =
      ''
        ip -6 addr add 2001:610:685:1::1/64 dev eth0
      '';