title: Detect IP-Address change on an interface
body: <p>I would like to trigger a service when a change of an ip address on a specific interface occurs. Is there a target for this or some other method I am not aware of to achieve this using systemd on Linux (Kernel 3.19)?</p>
  
  <p>The service would be used to send a SIGNAL to a defined process. The Linux is running on an embedded system.</p>
  
  <p>Thanks!</p>