System information

System Information Guide 17
SNMP Settings
Simple Network Management Protocol (SNMP) provides a method for managing network
devices. Devices supporting SNMP run local software (agent).
The SNMP agent maintains a list of variables, which are used to manage the device. The
variables are defined in the Management Information Base (MIB). The MIB presents the
variables controlled by the agent. The SNMP agent defines the MIB specification format, as
well as the format used to access the information over the network.
Access rights to the SNMP agent are controlled by access strings. To communicate with the
device, the Embedded Web Server submits a valid community string for authentication.
The default community strings for the switch are:
• Public — Allows authorized management stations to retrieve MIB objects
• Private — Allows authorized management stations to retrieve and modify MIB objects
If you do not intend to utilize SNMP, delete both of the default community strings. SNMP
management access to the switch is disabled if no community strings exist.
To delete the strings:
1 For 33xx switches, type enable.
The prompt displays as #.
2 If you are not already in the Privileged Exec level global configuration mode, type
configure and press <Enter>.
3 To delete the private community string, type no snmp-server community
private
and press <Enter>.
4 To delete the public community string, type no snmp-server community public
and press <Enter>.
5 For 33xx switches, type exit to exit the configuration context.
6 To save your configuration changes, type copy running-config startup-config
and press <Enter>.
If you do intend to utilize SNMP, change the default community strings to prevent
unauthorized access to the switch.