This I like though due to the fixed stack we have to work with I cannot use Perl later than 5.8.8 and also cannot use LibXML 1.70. I appreciate that is a whole topic of conversation in itself but those are the boundaries. I do appreciate the help though as this is very helpful in getting me going with Perl.

However, I've done a little bit with the code to make it work with 5.8.8 and I'm almost there but currently only outputting subnet and I need gateway, cidr and netmask too.

...
my $ua          = LWP::UserAgent->new();
my $req         = HTTP::Request->new('GET', $url);
my $res         = $ua->request($req);
my $parser      = XML::LibXML->new();

sub smart_match
{
        my ($target, $param) = @_;
        if (ref $param eq 'Regexp')
        {
                return ($target =~ qr/$param/);
        }
        else
        {
                return ($target eq $param);
        }
}

my $xml         = $parser->parse_string( $res->content() );
my @results;

foreach my $dict ($xml->findnodes('//dict'))
{
        my $key = $dict->getAttribute('key');

        #next unless $key eq [qw( 'subnet', 'gateway', 'cidr', 'netmas
+k' ) ];

        next unless smart_match( $key, qw( subnet gateway cidr netmask
+ ) );

        print Dumper($key);

        push @results, {} if $key eq 'subnet';

        my $value = $dict->findvalue('.//value');

        $results[-1]{ $key } = "$value";
}

print Dumper \@results;
[download]

$VAR1 = 'subnet';
$VAR1 = 'subnet';
$VAR1 = 'subnet';
$VAR1 = 'subnet';
$VAR1 = 'subnet';
$VAR1 = [
          {
            'subnet' => '10.11.14.0'
          },
          {
            'subnet' => '10.11.15.0'
          },
          {
            'subnet' => '10.15.8.0'
          },
          {
            'subnet' => '10.7.17.224'
          },
          {
            'subnet' => '10.11.24.0'
          }
        ];
[download]