Cisco Systems WSC2960X24TSL How to Configure SNMP, Disabling the SNMP Agent, Before You Begin

Configuring Simple Network Management Protocol

How to Configure SNMP

•To configure a remote user, specify the IP address or port number for the remote SNMP agent of the device where the user resides.

•Before you configure remote users for a particular agent, configure the SNMP engine ID, using the snmp-server engineID global configuration command with the remote option. The remote agent's SNMP engine ID and user password are used to compute the authentication and privacy digests. If you do not configure the remote engine ID first, the configuration command fails.

•When configuring SNMP informs, you need to configure the SNMP engine ID for the remote agent in the SNMP database before you can send proxy requests or informs to it.

•If a local user is not associated with a remote host, the switch does not send informs for the auth (authNoPriv) and the priv (authPriv) authentication levels.

•Changing the value of the SNMP engine ID has significant results. A user's password (entered on the command line) is converted to an MD5 or SHA security digest based on the password and the local engine ID. The command-line password is then destroyed, as required by RFC 2274. Because of this deletion, if the value of the engine ID changes, the security digests of SNMPv3 users become invalid, and you need to reconfigure SNMP users by using the snmp-server user username global configuration command. Similar restrictions require the reconfiguration of community strings when the engine ID changes.

How to Configure SNMP

Disabling the SNMP Agent

The no snmp-serverglobal configuration command disables all running versions (Version 1, Version 2C, and Version 3) of the SNMP agent on the device. You reenable all versions of the SNMP agent by the first snmp-serverglobal configuration command that you enter. There is no Cisco IOS command specifically designated for enabling SNMP.

Beginning in privileged EXEC mode, follow these steps to disable the SNMP agent.

Before You Begin

The SNMP Agent must be enabled before it can be disabled. The SNMP agent is enabled by the first snmp-serverglobal configuration command entered on the device.

SUMMARY STEPS

1.configure terminal

2.no snmp-server

3.end

	Catalyst 2960-X Switch Network Management Configuration Guide, Cisco IOS Release 15.0(2)EX
50	OL-29044-01