Configuring SNMP Trap Destinations with IP Addresses

The SNMP Trap Destinations table lets you configure up to five SNMP Trap Managers for receiving traps sent by the device. Trap Managers are defined by IP address and port (IPv4 and/or IPv6).

You can associate a trap destination with SNMPv2 users and specific SNMPv3 users. Associating a trap destination with SNMPv3 users sends encrypted and authenticated traps to the SNMPv3 destination. By default, traps are sent unencrypted using SNMPv2.

The following procedure describes how to configure SNMP trap destinations through the Web interface. You can also configure it through ini file [SNMPManager] or CLI (configure system > snmp trap-destination).

➢ To configure SNMP trap destinations:
1. Open the SNMP Trap Destinations table (Setup menu > Administration tab > SNMP folder > SNMP Trap Destinations).

2. Configure the SNMP Trap Manager according to the table below.
3. Select the row's corresponding check box (otherwise, your settings revert to default after clicking Apply).
4. Click Apply.
● If you clear the check box of a configured row, the row's fields revert to default after you click Apply.
● Instead of configuring SNMP Trap Managers with IP addresses in the SNMP Trap Destinations table, you can configure an IPv4-based SNMP Trap Manager and an IPv6-based Trap Manager with FQDNs for DNS resolution into IP addresses. If you use FQDNs, all your manual configuration in the table is ignored. The DNS-resolved IPv4 address is automatically added to the 'IP Address' field for SNMP Manager 5 and the DNS-resolved IPv6 address is added to the 'IP Address' field for SNMP Manager 4. For more information, see Configuring an SNMP Trap Destination with FQDN.
● To enable the sending of the trap event, acPerformanceMonitoringThresholdCrossing, which is sent whenever a threshold (high or low) of a performance monitored SNMP MIB object is crossed, configure the ini file parameter [PM_EnableThresholdAlarms] to [1]. Once enabled, you can change its default low and high threshold values. For more information, refer to the document SBC-Gateway Series SNMP Alarm Reference Guide.

SNMP Trap Destinations Table Parameters Description

Parameter

Description

(check box)

[SNMPManagerIsUsed_x]

Enables the SNMP manager to receive traps and checks the validity of the configured destination (IP address and port number).

■ [0] (check box cleared) = (Default) Disables SNMP manager
■ [1] (check box selected) = Enables SNMP manager

Note: If you clear the check box of a configured row, the row's fields revert to default after you click Apply.

'IP Address'

[SNMPManagerTableIP_x]

Defines the IP address of the remote host used as the SNMP manager. The device sends its SNMP traps to this IP address.

The valid value is an IPv4 address (in dotted-decimal notation, e.g., 108.10.1.255) or an IPv6 address (colon-separated hexadecimal, e.g., 3ffe:1900:4545:3:200:f8ff:fe21:67cf).

Note:

■ Depending on IP version (IPv4 or IPv6), the device uses the corresponding IP Interface (in the IP Interfaces table), assigned in Configuring SNMP Interfaces.
■ If you are using a WebSocket tunnel connection between the device and OVOC, then configure the parameter to the IP address mentioned in Configuring WebSocket Tunnel with OVOC

'Trap Port'

[SNMPManagerTrapPort_x]

Defines the port number of the remote SNMP manager. The device sends SNMP traps to this port.

The valid value range is 100 to 4000. The default is 162.

'Trap User'

[SNMPManagerTrapUser]

Associates a trap user (SNMPv2 or SNMPv3) with the trap destination. This determines the trap format, authentication level, and encryption level.

■ v2cParams = (Default) SNMPv2 user community string
■ SNMPv3 user configured in Configuring SNMP V3 Users

'Trap Enable'

[SNMPManagerTrapSendingEnable_x]

Activates the sending of traps to the SNMP Manager.

■ [0] Disable
■ [1] Enable (default)