This tool sends out ping requests to all IP's in a block range. Hosts that respond are displayed as 'child' outputs to the block request. Some of the parameters of the ping tools are available under the advanced options (see the documentation of the ping tool for more details).
It should be noted that this is not a port scanner, but rather an IP scanner, it tests for the presence of a device within a block range, not the presence of a port on a host. To use the function, enter the network address of the IP block and the Netmask. Then click the Go button. A progress bar will show how much of the block has been scanned. To stop a scan right click on the root branch and the option to stop is offered. Once stopped the item can be deleted. For each located host an attempt will be made to resolve it's IP. If a Fully Qualified Domain name is located it is shown next to the IP.
Table 8.1. Advanced Network Scanner Properties
| Delay | The amount of time waited, in seconds, between each ping request sent (time in seconds between attempts). |
| Timeout | How long to wait, in seconds, before assuming the request has failed. |
| TTL (Time to Live) | As the pocket of data sent along the network goes through a router, the TTL value contained within the pocket is reduced by one every time. Once the TTL reaches zero the router will no longer attempt to forward the pocket on to its destination, but rather abort the attempt and reply to the sender saying TTL expired. If not for the TTL feature in TCP pockets, then a ping request on a bad network could bounce around a network forever. |
| Request Size | This is the size of the pocket of data sent. |
| Attempts | The number of pockets sent in a non-continuous ping. |