SNMP Trap

Agent can receive SNMP Traps and send information to the system server. All received SNMP Traps can be found in the Event Log.

SNMP Trap probe can "bind" an SNMP Trap to an object, using single value or group of values. For instance, by the value of the field Trap OID in SNMP Trap v.2 or by the values of the fields Enterprise OID and Agent Address in SNMP Trap v.1.

SNMP Trap v.2 structure: uptime trapoid [OID TYPE VALUE] …

SNMP Trap v.1 structure: enterprise-oid agent-address trap-type(Generic Trap) specific-type(Specific Trap) uptime(Time Stamp) [OID TYPE VALUE]…

Settings example

Field	Description
Binding criteria	A key and the corresponding value according to which SNMP Trap is associated with the object. The button adds another criterion via the AND operator. It allows to filter SNMP Traps more precisely. The button adds another criterion via the OR operator. It allows to bind several SNMP Traps to the same object. The button to the right of the buttons of adding criterion removes the criterion or the system of criteria respectively.
Field with text	The OID of the field to display in the column Text of the Event Log.
Severity	A parameter, a comparison operator, the parameter value and the corresponding severity level to colorize data in the Event Log. The button adds another kit of options for the parameter. The button removes the kit of options.
Collapse by field	Additional OID to group data in the Event Log.
Expiry period	Period during which the received data is valid (60 seconds by default).

Field

Description

Binding criteria

A key and the corresponding value according to which SNMP Trap is associated with the object.

The button adds another criterion via the AND operator. It allows to filter SNMP Traps more precisely.

The button adds another criterion via the OR operator. It allows to bind several SNMP Traps to the same object.

The button to the right of the buttons of adding criterion removes the criterion or the system of criteria respectively.

Field with text

The OID of the field to display in the column Text of the Event Log.

Severity

A parameter, a comparison operator, the parameter value and the corresponding severity level to colorize data in the Event Log.

The button adds another kit of options for the parameter.

The button removes the kit of options.

Collapse by field

Additional OID to group data in the Event Log.

Expiry period

Period during which the received data is valid (60 seconds by default).

Result

After the check has been done result is displayed in the Data table:

Field	Description
senderAddress	The IP address of the sender.
bindings..1.3.6.1.2.1.1.3.0	Host uptime.
bindings..x.x.x.x	Text message from SNMP Trap displayed in the column Text of the Event Log.
trapOid	The value of the specified key by which SNMP Trap corresponds to the object.
text	The text of the received SNMP Trap.

Field

Description

senderAddress

The IP address of the sender.

bindings..1.3.6.1.2.1.1.3.0

Host uptime.

bindings..x.x.x.x

Text message from SNMP Trap displayed in the column Text of the Event Log.

trapOid

The value of the specified key by which SNMP Trap corresponds to the object.

text

The text of the received SNMP Trap.

It is possible to use external service to translate and display numeric SNMP OIDs to the human-readable text format. To do that it is necessary to specify:

the enableSnmpTranslate: true parameter in the client configuration file,
SNMP OID translation service address in the snmp_mib_url parameter of the Rest_server section of the server configuration file.

Command-line utility

This check is a counterpart of the program Net-SNMP, as a result of which, SNMP Traps will be recorded to a log file.