Geneos X-Ping Plug-in checks the network path to a specified target node and the availability of the node. It sends ICMP or TCP packets to the target host and measures the time it takes to reply. If no reply received after a defined time interval, the target node is assumed to be down or unreachable. The target host does not need to run any special software to provide the replies.
Multiple hosts can be monitored by one X-Ping plug-in.
|localInterface||The name of the local interface used to send the packets.|
|sourceNode||The source IP address to be used in the outbound packets.|
|targetNode||Name of the host that the ping requests are sent to.|
|targetAddress||IP address of the target host.|
If the plug-in is configured to use ICMP then this shows ICMP_ECHO.
If configured to use TCP, this shows the TCP service name that is used to send the echo packets. Defaults to ECHO (port 7), but can be configured to be any port/service.
|servicePort||If the plug-in is configured to use ICMP then this shows 0. Otherwise shows the service port number used.|
|turnaroundTime||Time in ms that a packet takes to travel to the target host and back.|
|status||REACHABLE if a reply is received within a timeout period (default 5 seconds), otherwise UNREACHABLE.|
|failurePercent||This plug-in computes failure percentage from the initial packet sent up to the last (initial sampling up to the latest sampling).|
The following parameters can be configured for this plug-in:
Specifies a comma-separated list of network interface names to be used.
On UNIX machines, interface names can be found using the command "ifconfig -a". Example names are "eth0" or "ce0".
On Windows machines, interface names can be listed by running Netprobe using the "-ifconfig" command-line option. A Windows interface name will look similar to the following:
The name of the network interface to be used to send packets (e.g. hme0). Usually the same as recvInterface parameter, but can be set to a different value in certain network configurations.
The name or the IP address of the target node that is being monitored. This must not be the node that the NetProbe is running on.
Specifies the network interface to be used (e.g., hme0).
Note: When a Node can be reached via
multiple interfaces, the first valid one in the
list returned by
ifconfig-a must be used.
The Source IP address to be used in the outbound test packets.
Timeout is the period within which we expect a reply to a packet that was sent out. If a reply is not received within this period, then the packet is considered lost.
Packets are only fired on sample. This means that if a packet is considered lost, then the next packet fire would occur at the next sample (i.e., packets will not be re-fired as soon as the timeout has been reached).
Based on the 'allowablePacketLoss' setting, multiple such packets may be lost before the plug-in reports that the particular target is unreachable.
This is the maximum number of consecutive packets that can be lost without setting the status to 'UNREACHABLE'.
For example, if the allowable packet loss is 3, then the plug-in will ignore up to 3 consecutive packets being lost. If the fourth is lost, then it will report 'UNREACHABLE'.
0 sec [sample] Fire packet. 1 sec 2 sec Timeout has occurred. Packet is considered lost. (Total lost: 1) 3 sec 4 sec [sample] Re-fire packet. 5 sec 6 sec Timeout has occurred. Packet is considered lost. (Total lost: 2) 7 sec 8 sec [sample] Re-fire packet. 9 sec 10 sec Timeout has occurred. Packet is considered lost. (Total lost: 3) 11 sec 12 sec [sample] Re-fire packet. 13 sec 14 sec Timeout has occurred. Packet is considered lost. (Total lost: 4) 15 sec 16 sec [sample] Re-fire packet. (report 'UNREACHABLE')
The type protocol to use. Can be TCP or ICMP. ICMP is more likely to pass through routers and firewalls.
Defines the port number the packets are sent to and, optionally, the name of the service.
If the name of service is provided, it will be displayed in the view. Otherwise only the port number will be shown.
The size of the payload to send with ICMP (ping) packets. The payload is an optional element in the packet sent to the target host, and is echoed back in the reply.
Forces X-Ping to detect if the underlying IP address of a host name has changed. This will restart the packet capture engine so X-Ping will continue to ping the correct host. In between restarts there is a potential for losing packets.
Note: Restarting the packet capture engine will affect all X-Set plug-ins as they too might miss packets.
The plug-in requires the netprobe to be run with root permissions (on Unix operating systems), as it needs to open network devices.
On Linux kernel versions 2.6.24 and up, an
alternative to running the netprobe as root is
available: Set the
CAP_NET_ADMIN Linux capability on
the netprobe binary with the command
setcap cap_net_raw,cap_net_admin+eip <netprobebinary> replacing
<netprobebinary> with the appropriate
netprobe binary file such as
When running the netprobe with set capabilities, the lib64 folder in the netprobe directory should be put in the ld.so trusted paths. Otherwise, the runtime libraries will not be loaded properly. Information on how to do this is found in this section of the Netprobe User Guide.
Windows Vista/Server 2003: Version 4.0.2 of the Winpcap packet capture library (http://www.winpcap.org/install/default.htm) must be installed on the host.
Windows 10 does not require Winpcap library.
Unix: The shared library libpcap.so (version 1.0.0 or later is recommended) needs to be in the netprobe lib64 directory.
Note: As the netprobe needs to be run as root, the LD_LIBRARY_PATH is ignored for security reasons.