Zhone 2000 ユーザーガイド

Type “T” on the File Transfer menu to display the TFTP Server menu 

(Figure 3.11) where you can enable and disable read access, write access, and 
console output.

The IAD displays the current settings directly below the menu heading. To 
successively enable or disable access or output, execute the option again. The 
IAD saves the configuration and displays the menu. When the options are set 
correctly, reset the IAD for the changes to take effect.