in reply to IP addresses

Generally, to determine the list of IP addresses associated with a given network, you should consider using Net::Netmask:

use strict;
use warnings;
use Net::Netmask;

my $spec  = ...;
my $block = Net::Netmask->new2($spec) or die "bad spec";
my $base  = $block->base;
my $bcast = $block->broadcast;
my @ip    = $block->enumerate;

for (@ip) {

  next if @ip > 1 and $_ eq $base;
  next if @ip > 1 and $_ eq $bcast;

  ...

}

[download]
See the perldoc for Net::Netmask to see how the network block may be specified. You'll find that it accepts the most intuitive methods.

--jwest 


-><- -><- -><- -><- -><-
All things are Perfect
    To every last Flaw
    And bound in accord
         With Eris's Law
 - HBT; The Book of Advice, 1:7

In Section Seekers of Perl Wisdom