This section is derived from good practice guide of security.

  * Each ONT/ONU need be identified by identification + **unique long and random password**.
    * If you keep a common password or password based on identification, a **customer can use another id** to login into your network
  * **A customer can control totally their ONT/ONU**, mean it can change their GPON SN, PPP login/pass, GPON mac address...
    * **Any limitation into ONT/ONU can be bypassed** (as put bridge and access directly to the sub network)
  * Put a random password to the wifi and web admin panel, to protect the user device
  * **Protect the sub network** from wrong mac address and IP access, based if possible on unique couple id/password