arpd

Collect free ARP information

Supplementary instructions

arpd command is a daemon process used to collect free arp information. It saves the collected information on disk or provides it to the kernel user when needed to avoid redundant broadcasts.

grammar

arpd(options)(parameters)

Options

-l: Output the arp database to the standard output device for display and exit;
-f: Specifies the text file to read and load the arpd database. The format of the file is similar to the "-l" output information;
-b: Specify the arpd database file, the default location is "/var/lib/arpd.db";
-a: Specifies the number of queries before the target is considered dead;
-k: Disable broadcast queries through the kernel;
-n: Set buffer expiration time.

Parameters

Network interface: Specify the network interface.

Example

Start the arpd process:

arpd -b /var/tmp/arpd.db

After running for a while, check the results:

arpd -l -b /var/tmp/arpd.db