Designing and Managing Behavior Models - Configuring SNMP Settings for Nodes - Changing the Security Level of an SNMP v3 Node -
Manually Changing the SNMP Version Used to Manage a Node      Changing the Authentication Protocol for an SNMP v3 Node

Changing the Security Level of an SNMP v3 Node

NerveCenter lets you set the security level you want for each managed node using SNMP v3. The security level of a node determines whether authentication or encryption services are used with communications between NerveCenter and the node.

SNMP v3 nodes can have one of the following security levels:

• NoAuthNoPriv -- Neither message authentication nor encryption is used while communicating with the agent. No passwords are required.
• AuthNoPriv -- Message authentication is used without encryption while communicating with the agent. An authentication protocol and password are required. The authentication password is the same for all nodes managed by the NerveCenter user (by default NCUser). The password can be changed in NerveCenter Administrator.
• AuthPriv -- Both authentication and encryption are used when communicating with the agent. Both the authentication and privacy protocols and passwords are required. These passwords are the same for all nodes managed by the NerveCenter user (by default NCUser). Passwords can be changed in NerveCenter Administrator.

For more information about SNMP v3 security, see NerveCenter Support for SNMP v3 Security on page 49. For details about passwords, see NerveCenter Support for SNMP v3 Digest Keys and Passwords on page 50.

 
  To change an SNMP v3 node's security level:

1. From the client's Admin menu, select Node List.

   The Node List window is displayed.

   

2. In the Node List window, select New if defining a new node, or select the node and then Open to change an existing node.

   The Node Definition window appears.

3. Select the SNMP tab.

   

4. Select the new security level from the Security Level list box.
5. Select the Save button.

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      You can also change the security level for one or more nodes from the Node List window. Right-click one or more nodes, select Security Level, and then select the level you want for the nodes.

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