Cabletron Systems 3Com Manual De Usuario

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17 Repeat step 12 through step 16 to download the next file and avoid a transfer 

time-out error if you are downloading both the firmware and HTML files.

The download is complete when the UI displays:

Download Successful

Updating AP

Update Successful

If the firmware update fails, the UI displays an error code indicating the cause. The 
AP automatically resets after all file transfers are completed.

18 Exit the communication program to terminate the session.

19 Repeat this process for other APs in the network.

The Update ALL Access Points feature upgrades or downgrades the firmware of all 
associated APs with the same WLAN Service Area on the same subnet and 
includes all recognized hardware platforms regardless of firmware version. The 
initiating AP sends the correct file name for each 3Com platform. The initiating AP 
does not send update commands to non-3Com platforms. 

You can find the specific APs that have firmware upgraded or downgraded in the 
Known APs window. There is a 2-second time interval between the WNMP update 
firmware commands for updating each AP. This interval prevents more than one 
AP from accessing the TFTP server at once and causing network congestion. 

The Ethernet TFTP upgrade method requires a connection between the AP and PC 
on the same Ethernet segment. Verify the PC has a TFTP server running on it. 
Running the server requires third party software such as FTP PC/TCP for DOS or 
OnNet™ for Windows. The wireless TFTP upgrade method requires a connection 
between the AP and a TFTP server. The TFTP server can be running on a 3Com 
AirConnect device.

Updating the firmware requires that a TFTP server be running in the background. 
To update the AP firmware:

1 Copy the firmware files dsap_fw.bin and 3cap_htm.bin to the terminal or PC 

hard disk.

2 Telnet to the AP using its IP address.

3 Type the case-sensitive password at the prompt (see “Changing the Access 

to the UI” for more details). The AP generates the Main Menu.

4 Select Special Functions from the Main Menu.

5 Select Alter Filename(s)/HELP URL/TFTP Server and press Enter.

6 Type the firmware file name in the Download Filename field.

7 Enter the TFTP Server IP address in the TFTP Server field.

8 Press Enter.

9 Select Save Configuration to save settings.