Or communicate it thru Socket:

Client:
use Storable qw(freeze);
use IO::Socket;

use strict;
use warnings;

my $c = new IO::Socket::INET(Proto => "udp",
                                  PeerAddr => "localhost",
                                  PeerPort => 3000,
                                  Timeout => 1);

print "Connected\n";
my $h = {"key" => [1,2,3,4,5,6,7,8,9,10]};
my $arr_freezed = freeze($h);
$c->send($arr_freezed);
close $c;

Server:
use IO::Socket;
use Storable qw(thaw);
use Data::Dumper;

use strict;
use warnings;

my $server = new IO::Socket::INET(Timeout => 7200,
                                 Proto => "udp",
                                  LocalPort => 3000,
                                  LocalHost => "localhost");
print "Server is listening ...\n";
my $arr_freezed;
$server->recv($arr_freezed, 1000);
my $h = thaw($arr_freezed);
print Dumper($h);
close $server;
[download]

Modified above example a little bit, so now it sends a freezed object over:

blah.pm:

package blah;

sub new {
    $self = {};
    bless($self);
    return $self;
}

sub setA {
    my ($self, $a) = @_;
    $self->{"A"} = $a;
}

sub getA {
    my $self = shift;
    return $self->{"A"}
}

1;

s.pl:

use IO::Socket;
use blah;
use Storable qw(thaw);
use Data::Dumper;

use strict;
use warnings;

my $server = new IO::Socket::INET(Timeout => 7200,
                                 Proto => "udp",
                                  LocalPort => 3000,
                                  LocalHost => "localhost");
print "Server is listening ...\n";
my $blah_freezed;
$server->recv($blah_freezed, 1000);
my $blah = thaw($blah_freezed);
print $blah->getA();
close $server;

c.pl:

use Storable qw(freeze);
use blah;
use IO::Socket;

use strict;
use warnings;

my $c = new IO::Socket::INET(Proto => "udp",
                                  PeerAddr => "localhost",
                                  PeerPort => 3000,
                                  Timeout => 1);
print "Connected\n";
my $blah = blah->new();
$blah->setA(123);
my $blah_freezed = freeze($blah);
$c->send($blah_freezed);
close $c;
[download]

I modified pg's code to make the module do most of the work, simplifying life for the client and server ...

#blah.pm:

package blah;
use Storable qw(freeze thaw);
use IO::Socket;

sub new {
    $self = {};
    bless($self);
    return $self;
}

sub setA {
    my ($self, $a) = @_;
    $self->{"A"} = $a;
}

sub getA {
    my $self = shift;
    return $self->{"A"}
}
#################
sub Send{
  # Freeze and send myself over UDP
  my ($self, $ToPort) = @_;
  my $blah_freezed = freeze($self);
  $ToPort |= 3000;
  my $c = new IO::Socket::INET(Proto => "udp",
                                    PeerAddr => "localhost",
                                    PeerPort => $ToPort,
                                    Timeout => 1);
  print "Connected\n";
  $c->send($blah_freezed);
  close $c;
}
######################
sub Recieve{
  # Instantiate an object by thawing item recieved via UDP
  my ($self, $FromPort) = @_;
  $FromPort |= 3000;
  my $server = new IO::Socket::INET(Timeout => 7200,
                                   Proto => "udp",
                                    LocalPort => $FromPort,
                                    LocalHost => "localhost");
  print "Server is listening ...\n";
  my $blah_freezed;
  $server->recv($blah_freezed, 1000);

  close $server;
  return bless thaw($blah_freezed);
}
######################
1;


#c.pl:

use blah;
use strict;
use warnings;

my $blah = blah->new();
$blah->setA(123);
$blah->Send();


#s.pl:
# Instantiate an object (Created via socket, behind the scenes).
use blah;
use strict;
use warnings;

my $blah = blah->Recieve();
print $blah->getA();
[download]

    Earth first! (We'll rob the other planets later)