Most systems now have a firewall in place that prevents them from responding to the ping sweep. Windows example to find live hosts(for /l %i in (1,1,254) do -n 1 -w 100 192.168.0.%i | findstr "Reply")Īctivity 3 - List Responding Hosts Observe the results as the command sweeps the network searching for hosts.If using a bash command shell, on most Linux OS, a similar example would resemble for i in do ping -c 1 -W 1 10.1.1.$i done, where the count for ($i) would be from 1 to 25. This command instructs the computer to loop (for /l) counting from 1 by 1 to 254 (1,1,254) and execute (do) a ping command with a count (-n) of 1 and a wait (-w) time of 100 milliseconds and the given network address and changing host (%i) address. From a Microsoft OS command line, Type for /l %i in (1,1,254) do -n 1 -w 100.
For example, if the IPv4 Address is 192.168.1.101, this activity will assume that the host network is 192.168.1.0, and has potential host addresses from 192.168.1.1 through 192.168.1.254.Īctivity 2 - Perform a Ping Sweep For this activity, the host network will be assumed to be a 24-bit network based on the first three octets of the host IP address. Use ipconfig to display the host IP address.These activities will show you how to use the ping command to perform a ping sweep.Īctivity 1 - Identify the Host Network 2 Activity 1 - Identify the Host NetworkĪ ping sweep is a network reconnaissance using some type of ping (ICMP echo/reply) to locate hosts on a network.
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