Also, if the MAC address of interest isn't in your ARP cache, you can try pinging it with Net::Arping. It will allow you to ping a host using ARP packets and get the MAC address directly from the reply. This is a cool module, even if the documentation leaves a bit to be desired.

Your system's ARP cache should cache the MAC addresses of machines on the local network with which it has recently communicated, so you may not even need to install the module depending on your environment.

Here's another link on ARP and Linux if you're interested.

It's quite unclear to me what you want. What do you mean by MAC address which is in Linux Server? If all you want is to get the MAC address of an IP address, given that the IP address belongs to the local subnet, you could issue an arp request. But that has nothing to do with a "Linux Server", whatever that may be.

Abigail

sub unique {  keys %{{ map { $_, 1 } @_ }}  }

my $ifconfig;
-x and $ifconfig = $_ , last for qw(/sbin/ifconfig /bin/ifconfig);
die "Can't find ifconfig\n" unless $ifconfig;

my @hwaddrs = `$ifconfig` =~ /\b((?:[a-f\d]{2}:){5}[a-f\d]{2})\b/gi;

{ local ($\, $,) = ("\n", "\n") and print unique @hwaddrs }
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iam this code to get MAC address ,but my application is if i give IP i want to get MAC address of remote IP

20040403 Edit by Corion: Added formatting