3Com® VCX V7111 VoIP Gateway User Guide 367A row with the same security level (noAuthNoPriv) must already exist in theusmUserTable. (See the usmUserTable for details).To delete the read-only, noAuthNoPriv SNMPv3 user (v3user), take these steps:1 If v3 user is associated with a trap destination, follow the procedure for associating adifferent user to that trap destination. (See below.)2 Delete the vacmSecurityToGroupTable row for SecurityName v3user, GroupNameReadGroup1, and SecurityModel usm.3 Delete the row in the usmUserTable for v3user.To add a read-write, authPriv SNMPv3 user (v3user), take these steps: Clone the row with the same security level. Change the authentication key and privacy key. Activate the row. That is, set the row status to active(1). Add a row to the vacmSecurityToGroupTable for SecurityName v3admin1, GroupNameReadWriteGroup3, and SecurityModel usm(3).A row with the same security level (authPriv) must already exist in the usmUserTable(see the usmUserTable for details).To delete the read-write, authPriv SNMPv3 user (v3admin1), take these steps:1 If v3admin1 is associated with a trap destination, follow the procedure for associating adifferent user to that trap destination. (See below.)2 Delete the vacmSecurityToGroupTable row for SecurityName v3admin1, GroupNameReadWriteGroup1, and SecurityModel usm.3 Delete the row in the usmUserTable for v3admin1.Trusted ManagersBy default, the agent accepts get and set requests from any IP address, as long as thecorrect community string is used in the request. Security can be enhanced using the use ofTrusted Managers. A Trusted Manager is an IP address from which the SNMP Agentaccepts and processes get and set requests. An EM can be used to configure up to fiveTrusted Managers.If Trusted Managers are defined, all community strings work from all TrustedManagers. That is, there is no way to associate a community string with particulartrusted managers.
