ZyXEL Communications AES-100 - Manual (Page 77)

AES-100 User’s Guide
Firmware Upload and Recovery 13-1
Chapter 13
Firmware Upload and Recovery
ZyXEL periodically releases new firmware for the ADSL Networking Module for bug fixes and
enhancements. Please check the web site at www.zyxel.com every now and then for the latest firmware
release.
The ADSL Networking Module uses FTP to upload firmware and no longer supports TFTP uploads. If the
firmware in non-volatile memory is damaged, the ADSL Networking Module uses BOOTP/TFTP to recover the
firmware. The differences between these two methods are as follows:
♦ Upload timing:
An FTP upload is done during operation (run-time), while a BOOTP/TFTP recovery is done when the ADSL
Networking Module is restarted.
♦ Protocols used:
An FTP upload uses FTP protocol, while a BOOTP/TFTP recovery uses BOOTP and TFTP protocols.
♦ Remote upload:
An FTP upload does not require the ADSL Networking Module and your computer to be on the same LAN,
while a BOOTP/TFTP recovery does.
♦ Firmware files used:
An FTP upload uses a file with an “.img” extension name, while a BOOTP/TFTP recovery uses a file with a
“.bin” extension name.
♦ The role of the ADSL Networking Module:
An FTP upload uses the ADSL Networking Module’s built-in FTP server and a BOOTP/TFTP recovery uses
the ADSL Networking Module’s built-in BOOTP/TFTP client.
♦ The impact to the ADSL Networking Module:
An FTP upload overwrites the ADSL Networking Module’s firmware only while a BOOTP/TFTP recovery
overwrites the ADSL Networking Module’s firmware and all configuration files.
13.1 FTP Firmware Upload on the ADSL Networking Module
The ADSL Networking Module uses FTP for firmware uploads through its built-in FTP server when the ADSL
Networking Module is operational. To update the firmware, first download it (the file will have an “img” extension
name) from the ZyXEL web site and store it on your computer. You can use any FTP client (for example, ftp.exe
in Windows) to upgrade the ADSL Networking Module’s firmware. The procedure for FTP upgrade is as follows.
Do not turn off the ADSL Networking Module during the updating process, as it may corrupt the firmware
and make your ADSL Networking Module unusable.
1. Connect to the ADSL Networking Module with your favorite FTP client.
The command is generally: ftp at the computer command
prompt.
2. Enter the user name (just press [ENTER]). For example,
User: