I am not aware of a nice perl way to do it, but a very nasty hack could be (on *NIX systems):

my $arp = `/usr/sbin/arp -a`;
my $mac = "aa.bb.cc.dd.ee.ff";

if($arp =~ m/\(([\d\.]+)\) at $mac/) {
  print "$1\n";
}

[download]

Update: please do note that the MAC address needs to be in the arp cache for this approach.

--
b10m

In reply to Re: mac to IP address? by b10m
in thread mac to IP address? by Anonymous Monk

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