MAINTENANCE AND 9

TROUBLESHOOTING

MAINTENANCE

You can update software by specifying a device on your LAN where you will place new software for the update (see “Defining TFTP Parameters” on page 36). Then, use the procedure “Updating Software” on page 77 to download new software from the TFTP device to the Megabit Modem 400F, 500L, 600F, and 700F.

Through the RS-232 MGMT port on the Megabit Modem 600F and 700F, you can change the modem LAN port IP address and network mask, the default gateway IP address, and the IP address for the device on the LAN that can administer the modem (see page 80).

Updating Software

Updating software images in binary format require the use of a TFTP server. The TFTP server stores the files which will be downloaded to your modem. This guide assumes that you have correctly set up your TFTP server on the same subnet as the modem and that the appropriate files are available to download.

When updating software remotely, file corruption is a major concern. For example, if an image file altered during the TFTP process the modem may not restore its connections after a system reset. To eliminate such possibilities, the modem software performs a CRC check for the integrity of each file after it has been downloaded.

Megabit Modem 400F, 500L, 600F, and 700F User Manual

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