3com 4210 18-Port User Manual

To manage a switch using the web interface over an IP network:

Check that you have the IP protocol correctly installed on your management 
workstation. You can check this by trying to browse the World Wide Web. If you 
can browse, the IP protocol is installed.

Check you can communicate with the switch by entering a ping command at the 
DOS prompt in the following format: 

(where xxx.xxx.xxx.xxx is the IP address of the switch)

If you get an error message, check that your IP information was entered correctly 
and the switch is powered up.

Open your web browser and enter the IP address of the switch that you wish to 
manage in the URL locator, for example, in the following format:

At the login and password prompts, enter 

 as your user name and press 

Return at the password prompt (or the password of your choice if you have 
already modified the default passwords).

Click on the Device View button to display the web management options.

Any network management application running the Simple Network Management 
Protocol (SNMP) can manage a switch if the management workstation is 
connected to the switch using a port on the management VLAN. By default, the 
management VLAN is 1, and all ports on the switch are in VLAN 1.

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The default read community string is public. The default write community 
string is private. 

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To display the current configuration of the community strings in the System 
View, enter display snmp-agent community. 

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To configure new read community strings, enter snmp community read 
(new community string up to 32 characters). 

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To configure new write community strings, enter snmp community write 
(new community string up to 32 characters). 

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To remove a community string, enter undo snmp-agent community (the 
string to be removed).

To manage your switch using an SNMP network management application, you 
need to specify SNMP community strings for the users defined on the switch. You 
can do this using the command line interface system management snmp 
community