IcmpMonitor

The ICMP monitor tests for ICMP service availability by sending echo request ICMP messages. The service is considered available when the node sends back an echo reply ICMP message within the specified amount of time.

Monitor facts

Class Name

org.opennms.netmgt.poller.monitors.IcmpMonitor

Remote Enabled

true with some restrictions (see below)

Configuration and Usage
Table 1. Monitor specific parameters for the IcmpMonitor
Parameter Description Required Default value

packet-size

Number of bytes of the ICMP packet to send.

optional

64

retry

Number of attempts to get a response.

optional

2

timeout

Time in milliseconds to wait for a response.

optional

800

Examples
<service name="ICMP" interval="300000" user-defined="false" status="on">
  <parameter key="retry" value="2"/>
  <parameter key="timeout" value="3000"/>
  <parameter key="rrd-repository" value="/var/lib/opennms/rrd/response"/>
  <parameter key="rrd-base-name" value="icmp"/>
  <parameter key="ds-name" value="icmp"/>
</service>
<monitor service="ICMP" class-name="org.opennms.netmgt.poller.monitors.IcmpMonitor"/>
Note on Remote Poller

The IcmpMonitor needs the JNA ICMP implementation to function on remote poller. Though, corner cases exist where the IcmpMonitor monitor won’t work on remote poller. Examples of such corner cases are: Windows when the remote poller isn’t running has administrator, and Linux on ARM / Rasperry Pi. JNA is the default ICMP implementation used in the remote poller.