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50  NTU Optical Network Terminals 
4.5.4  The “Ping” submenu. Test the Availability of Network Devices 
Use this menu to test the availability of network devices connected to the router with Ping utility.  
 
In order to check availability of a connected device, enter its IP address into the field and click the Ping 
button. Click the TraceRoute button to view the route tracing. The information will be displayed on this page of 
the web interface. 
 
4.5.5  The “Password” submenu. Access control configuration (setting passwords) 
Use the menu to change a device access password. 
   
To change the password, enter the current password, then enter a new password and confirm it.  
Click the Apply/Save button to accept and save the changes.