The ping and port scanner tool can be used to test if a device is responding on TCP request on specific ports. The ping facility can be used to test if a device is online.

The tool is multithreaded and can work on up to 4 devices at the same time, which makes network analysis faster

Device filter	Description
*	All computers are searched
*server	All computers that have a name that ends with server are searched
?server	All computers that have a name that ends with server, and starts with a single character are searched - for instance aserver, but not a_server
pc*	All computers that have a name that starts with pc are searched
com?u?er	For instance, computers named computer, comxu3er and com1u_er are searched but not computter or computers

Enter the name of the devices that are to be pinged in the Device filter, and click on Execute.

By default, the device will be echoed 3 times with a 1 second timeout period.

Both of these values can be altered in Options panel to the left

The most recent ping-result will always be shown at the top, and if there is more than one result, an entry with the average ping time will be shown.
Furthermore, once a device has been pinged more than 3 times, older results will be placed in an Archive sub tree, which means that it’s easier to monitor multiple ping request simultaneously.

If Repeat is checked, then the ping routine will repeat itself until Stop has been pressed.

Send buffer size (bytes): By default, the ping send and request for 32 bytes of data to be sent and echoed back.
It is normally not needed to increase the buffer size, but to test network reliability the size can be increased to test if larger network packets will be dropped, which is a sign of a heavy workload somewhere on the path between the host server and the echoed device. The result does not say anything about where the failure lies. To do so, a network trace must be performed (on Windows devices, the “tracert” command is very helpful in this regard).

Time to live (TTL): By default a TTL of 255 is used. TTL is the number of network hops that the ping request can pass before the ping-request can be discarded by network routers.

A running ping operation can be aborted by pressing Stop during scan.

This tool can be used to check whether or not servers in the local network have open ports.

It is highly recommended to have as few ports as possible open on any server, as this lowers the attack surface.


Scan

Enter the name of the device or devices that are to be echoed in the Device filter, and press Execute, and the scan will start.

DomainScan will scan the entire device before it moves on, and the result is shown while the scan is running.

An active scan can be aborted by pressing Abort during scan.

DomainScan can scan either one or more specific known ports, or a range of ports.

Range

To scan a range of ports, select the Port range option and enter the lower and upper port that are to be scanned. Any port from 0 to 65.536 is usable.
To scan one port, simply enter the same port number in both fields.

Specific ports

Select Specific ports and check the ports that are to be scanned.