08-04-2014
Just to add to bakunin's comments
When you are in sms menu for client (IPL where you configure the IP, Master IP subnet and gateway), say for IP 10.30.1.21 you will use the gateway of that client ex:10.30.1.1 and NOT the NIM gateway ex:10.20.1.1. Same goes with 10.40.1.X subnet.
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LEARN ABOUT DEBIAN
net::subnets
Net::Subnets(3pm) User Contributed Perl Documentation Net::Subnets(3pm)
NAME
Net::Subnets - Computing Subnets In Large Scale Networks
SYNOPSIS
use Net::Subnets;
my $sn = Net::Subnets->new;
$sn->subnets(@subnets);
if (my $subnetref = $sn->check($address)) {
...
}
my ($lowipref, highipref) = $sn->range($subnet);
my $listref = $sn->list(($lowipref, $highipref));
DESCRIPTION
Very fast matches large lists of IP addresses against many CIDR subnets and calculates IP address ranges.
This is a simple and efficient example for subnet matching:
use Net::Subnets;
my @subnets = qw(10.0.0.0/24 10.0.1.0/24);
my @addresses = qw/10.0.0.1 10.0.1.2 10.0.3.1/;
my $sn = Net::Subnets->new;
$sn->subnets(@subnets);
my $results;
foreach my $address (@addresses) {
if (my $subnetref = $sn->check($address)) {
$results .= "$address: $$subnetref
";
}
else {
$results .= "$address: not found
";
}
}
print($results);
This is a simple example for range calculation:
use Net::Subnets;
my @subnets = qw(10.0.0.0/24 10.0.1.0/24);
my $sn = Net::Subnets->new;
my $results;
foreach my $subnet (@subnets) {
my ($lowipref, $highipref) = $sn->range($subnet);
$results .= "$subnet: $$lowipref - $$highipref
";
}
print( $results );
This is a simple example for list generation:
use Net::Subnets;
my $lowip = '192.168.0.1';
my $highip = '192.168.0.100';
my $sn = Net::Subnets->new;
my $listref = $sn->list(($lowip, $highip));
foreach my $address (@$listref) {
# do something cool
}
METHODS
"new"
my $subnets = Net::Subnets->new;
Creates an "Net::Subnets" object.
"subnets"
$subnets->subnets([qw(10.0.0.0/24 10.0.1.0/24)]);
The C<subnets> method lets you prepare a list of CIDR subnets.
"check"
my $match = $subnets->check($address);
The C<check> method lets you check an IP address against the previously
prepared subnets.
"range"
my ($lowest, $highest) = $subnets->range($subnet)
The C<range> method lets you calculate the IP address range of a subnet.
"list"
my $list = $subnets->list($lowest, $highest);
The C<list> method lets you calculate a list containing all IP addresses
in a given range.
AUTHOR
Sebastian Riedel (sri@cpan.org), Juergen Peters (juergen.peters@taulmarill.de)
COPYRIGHT AND LICENSE
Copyright (C) 2003-2009, Sebastian Riedel.
This program is free software, you can redistribute it and/or modify it under the terms of the Artistic License version 2.0.
perl v5.10.1 2009-12-18 Net::Subnets(3pm)