title: Detecting a change of IP address in Linux
body: <p>Does anyone know a way to detect a change of IP address in Linux. Say I have dhcpcd running, and it assigns a new IP address, is there a way I can get a notification when it changes? I can't use D-Bus, because this is an embedded ucLinux build that doesn't have it.</p>
  
  <p>inotify on something in /proc/net/ ?</p>