See “Access Control Lists” in the “Points to Note when using the Switch 3226 and Switch 3250” section of this document for further details.

3Com Network Supervisor Discovery

When using 3Com Network Supervisor with previous versions of the software, 3Com Network Supervisor was unable to display the unit on the network topology. This will prevent you from using 3Com Network Supervisor to update the software from 1.00 or 1.01.

This has been fixed. The Switch running software version 1.02 and above can be discovered successfully using 3Com Network Supervisor and the correct network topology generated.

Updating the Switch Software

Software Updates are the bug fix and maintenance releases for the version of software initially purchased with the product. In order to access these Software Updates you must first register your product on the 3Com Web site at:

http://eSupport.3com.com/

First time users will need to apply for a user name and password. A link to software downloads can be found from this http://eSupport.3com.com/ page, or located from the www.3Com.com home page.

Updating the Switch Software

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To update the software on the Switch, do the follow- ing:

1Locate the software update for the Switch and run the (filename.exe) executable file.

2If necessary, download the TFTP server applications into the management station.

3Install the TFTP server (file name 3ts01_04.exe) on a Microsoft Windows 95, 98, NT, 2000 or XP machine.

4Launch the TFTP server application.

5Point the Upload/Download default directory on the TFTP server to the directory where the upgrade file is located.

6Make sure the Switch being upgraded has an IP address assigned to it.

7Telnet to the Switch.

a To Telnet to the Switch, click Start in Microsoft

Windows 95, 98, NT, 2000, or XP machine. b Click Run.

cIn the text area, type telnet IP address

dClick OK.

8Press Enter to receive a login prompt.

9Log into the Switch management. a The default user login is admin.

b There is no default password for admin (press Enter).

10From the main menu, select System, then select Control.

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3Com 3250, 3226 manual Updating the Switch Software, 3Com Network Supervisor Discovery