SNMP Settings

SNMP (Simple Network Management Protocol) is a networking protocol that is used to offer and receive status information across a network. The participants of the SNMP-based information exchange are the SNMP manager (e. g. Nagios) and the SNMP clients (devices such as your LANCOM R&S®Unified Firewall that are meant to be monitored by the SNMP manager).

The SNMP manager requests, receives and monitors information. SNMP clients respond to information requests (e. g. "What is the current CPU load/memory usage of the device?"). Status information offered by managed devices is organized like a tree (the so-called Management Information Base, short MIB), with each leaf being a retrievable piece of information. Every single leave can be addressed and requested individually via its own unique numeric address. A file containing a mapping of these numeric address snippets to meaningful names, and thereby a declaration of all information available on a managed device, can be provided to the SNMP manager to increase human usability (e. g. 29577.1.1 represents RSCS.SystemLoad.cpuLoad).

The SNMP Settings allow you to configure the following elements:

Input field Description
I/0 A slider switch indicates whether the SNMP is active (I) or inactive (0). Click the slider switch to change the status. SNMP is deactivated by default.
Listening IP Optional: Enter a local IP address the service will be listening on. If you retain the pre-defined IP address 0.0.0.0, requests will be accepted on all IP addresses.
Listening Port Optional: Specify the port number the service will be listening on. The default port number is 161.
Protocol Version From the drop-down list, select the version of the SNMP protocol you want to use. Depending on the selected version, the following options are available. v2c is selected by default.
Community String Only available if the selected Protocol Version is v2c: Enter the pre-shared key that every SNMP manager/client has to use to authenticate to the SNMP service of the access zone.
Show Community String Only available if the selected Protocol Version is v2c: Select this check box to verify the pre-shared key.
Username Only available if the selected Protocol Version is v3: Enter the username that every SNMP manager/client software has to use to identify to the SNMP service of the access zone.
Important: The username is created and used by the SNMP service internally.
Authentication Protocol Only available if the selected Protocol Version is v3: From the drop-down list, select the hashing algorithm that is used for authentication purposes. You can choose between No Authentication, MD5 and SHA.
Authentication Password Only available if the selected Protocol Version is v3 and if the selected Authentication Protocol is MD5 or SHA: Enter the password you want to use for authentication. The password must consist of at least eight characters.
Show Authentication Password Optional and only available if the selected Protocol Version is v3 and if the selected Authentication Protocol is MD5 or SHA: Select this check box to verify the authentication password.
Privacy Protocol Optional and only available if the selected Protocol Version is v3 and if the selected Authentication Protocol is MD5 or SHA: From the drop-down list, select the hashing algorithm that is used to encrypt the communication with the SNMP service. You can choose between the encryption algorithms 3DES and AES. This option is set to No Encryption.
Privacy Password Only available if the selected Protocol Version is v3, if the selected Authentication Protocol is MD5 or SHA and if the selected Privacy Protocol is 3DES or AES: Enter the password that is used to encrypt the communication with the SNMP service with the selected encryption algorithm.
Show Privacy Password Optional and only available if the selected Protocol Version is v3, if the selected Authentication Protocol is MD5 or SHA and if the selected Privacy Protocol is 3DES or AES: Select this check box to verify the privacy password.
Location Optional: Enter a fixed value which your LANCOM R&S®Unified Firewall returns for requests to certain Object Identifiers (OIDs) of the standard Management Information Base (MIB): sysLocation.
Contact Optional: Enter a fixed value which your LANCOM R&S®Unified Firewall returns for requests to certain Object Identifiers (OIDs) of the standard Management Information Base (MIB): sysContact.

If you have modified these settings, use the buttons at the bottom right of the editor panel allow to confirm (Save) or to discard your changes (Reset). Otherwise, you can close the dialog (Close).

Click Activate in the toolbar at the top of the desktop to apply your configuration changes.

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