PRTG Manual: Configuring SNMP Credentials
Understanding SNMP Community Strings
SNMP is the Simple Network Management Protocol used by many network devices to provide device information. SNMP community strings are similar to passwords, the correct community string must be provided to the device SNMP agent before it will respond to requests for information.
The credential name is used within UVexplorer to refer to the SNMP credentials
The read community string is the community string UVexplorer uses when reading information from a device. This value should be set to the read community string value set on the device.
The write community string is the community string UVexplorer uses when writing information to the device. This value should be set to the write community string value set on the device.
The SNMP protocol currently has three versions. SNMP v3 has enough differences from v1 and v2 that it requires a different editor. See Configuring SNMP V3 Users for help creating SNMP V3 credentials.
SNMP V2 added performance, and security improvements that require a different SNMP agent. View the device configuration to determine which SNMP version is required by your device.
When making requests to SNMP agents, UVexplorer must wait for a response. The timeout setting is used to configure how long UVexplorer will wait for a response. The timeout value is set in milliseconds. The default value is 2000 milliseconds or 2 seconds. Increasing the timeout could improve the number of responses UVexplorer receives. Longer timeouts may increase the amount of time required for a discovery.
If an SNMP request fails to receive a response, UVexplorer can send the request again. The retries setting is used to configure the number of times to resend the request. Increasing the retries may increase the amount of time required for a discovery, but may also improve the results.
