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arp-scan:tldr:84532
The command "arp-scan ${127-0-0-0}-${127-0-0-31}" is using the 'arp-scan' tool to perform an Address Resolution Protocol (ARP) scan on a range of IP addresses.
Here's a breakdown of each component in the command:
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"arp-scan": This is the name of the command-line tool that is being executed. It is used for scanning and discovering devices on a local network by sending ARP requests.
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"${127-0-0-0}-${127-0-0-31}": This part specifies the IP address range to be scanned. In this case, it uses a variable format, indicated by the "${}" notation. The range is from IP address "127.0.0.0" to "127.0.0.31".
The IP address range 127.0.0.0 - 127.0.0.31 represents the loopback addresses commonly used for local testing or network troubleshooting. This range is typically reserved for communication within a single machine and is not associated with any physical network interfaces.
By executing this command, the 'arp-scan' tool will send ARP requests to each IP address within the specified range, attempting to discover devices on the local network that have these IP addresses assigned to them.