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perlmodulecpanarp

Perl module Net::ARP, arp_lookup

I want to look up a MAC adrress by an IP.

use Net::ARP;
$mac = Net::ARP::arp_lookup($dev,"192.168.1.1");

But on the CPAN page, they don't explain what is this $dev variable for?

Solution

  • $dev is the network interface to use to try to connect to the given IP address. In the other methods, 'lo' and 'eth0' are given as examples.