CA SystemEDGE User Guide › Agent Configuration › SNMPv3 Configuration

SNMPv3 Configuration

SNMPv3 provides an enhanced level of security from previous versions. SNMPv3 has the following levels of communication:

• noAuthNoPriv is similar to SNMPv1 and SNMPv2. Messages are accompanied by a username, which must be consistent between the sender and the receiver.
• AuthNoPriv uses a consistent username and a password.
• AuthPriv uses a username, a password, and an encryption key. This key encrypts the body of the message.

To maintain the consistent information, both the sender and receiver must be synchronized and the information made secure using a provided encryption tool.

You can configure SystemEDGE to use SNMPv3 based communication. The agent is based on the User-based Security Model (USM) defined for SNMPv3.

The sysedgeV3.cf file contains policy defining how the SNMP administrator handles responsibilities and specifies the level of security expected when accessing a host. The file is located in the CASYSEDGE_DATADIR directory, and it lets you specify the following:

• SNMP engine ID prefix
• SNMPv3 security users
• Level of security
• Authentication protocol and password
• Encryption protocol and its password

There is no user interface for configuring the sysedgeV3.cf file. You must configure SNMPv3 settings directly in the file. However, you can access the file from the CA Virtual Assurance manager and deploy the configured file to systems.