Authenticate the connection
- Last UpdatedApr 08, 2026
- 2 minute read
The SNMP Communication Driver supports authentication only for SNMP v3. If the station is configured to communicate using SNMP versions 1 or 2, the authentication settings are ignored and not used.
Authenticate the Connection
The Authentication section allows you to configure the security settings for every station.

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Security Level: Set the security level used for SNMP v3 messages. From the Security Level list, select one of the options:
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No security: Select this security level if no authentication is required.
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Authentication only: This enables the Authentication Type, Privacy Type, Username and Password fields.
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Authentication and Privacy: This enables the Authentication Type, Privacy Type, Username, Password, and Private key fields.
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Authentication Type: Select the authentication protocol used for authenticated SNMP v3 messages:
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MD5
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SHA
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SHA-256
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SHA-512 (default)
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Privacy Type: Select the encryption type:
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AES (default): We recommend you to select this encryption type. It is more secure because it supports larger key sizes, and its use of larger block sizes makes it highly efficient.
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DES: This encryption type is only supported for compatibility with older standards. However, it is less secure and efficient than AES encryption.
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Username: Set the security name used for authenticated SNMP v3 messages
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Password: Set the authentication pass phrase used for authenticated SNMP v3 messages.
Note: The Username and Password must be provided when using any security level higher than No security.
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Private key: Set the privacy pass phrase used for encrypted SNMP v3 messages. The Privacy key is enabled and is mandatory only when using security level of Authentication and Privacy.