Comment # 6 on bug 902771 from Marius Tomaschewski

(In reply to kevin vandeventer from comment #5)
> > systemctl restart wickedd
> > wicked ifup enp9s0
                ^^^^^^
                all

All config has to be reapplied.

> The only text in my /etc/wicked/common.xml is 'false'. 

Then the file is broken, please reinstall wicked.

> I also have /etc/wicked/nanny.xml but it is blank. 

No, do not touch nanny.xml. It is for nanny only. The use-nanny
flag is also used in nanny but basically most important in the
_client_ which has to feed the config into nanny and not into the
wickedd directly.

> Should I change false to true in the common.xml file?

It needs this content:

<!-- Common configuration file sourced by all application-specific files -->
<config>
  <piddir   path="/run/wicked" mode="0755"/>
  <statedir path="/run/wicked" mode="0755"/>
  <storedir path="/var/lib/wicked" mode="0755"/>

  <!--
    Config options specific to DBus service
   -->
  <dbus>
    <service name="org.opensuse.Network" />
    <schema name="/usr/share/wicked/schema/wicked.xml"/>
  </dbus>

  <!--
    Use nanny or not:

    'false': causes ifup (and ifreload) to apply the config
         directly into wickedd without nanny involved
         (one shot setup).

    'true':  causes ifup (and ifreload) to apply a policy
         with the effective config to nanny and nanny
         configures wickedd then; with hotplug support.

    After a change, restart wickedd.service and execute
    "wicked ifup all" to (re)apply the config / policies.
  -->
  <use-nanny>true</use-nanny>

  <!--
    If you want to make changes to this file, consider putting
    your changes into /etc/wicked/local.xml instead.
    Otherwise, you may lose your changes when applying
    future maintenance updates.
    -->
  <include name="local.xml" optional="true" />
</config>