Within a range of IP Addresses

Saved has asked for the wisdom of the Perl Monks concerning the following question:

I'm sure many have created code to ascertain if an IP is within a certain range of IP's. Could you please get me started, or point me in the right direction? Thanx

Got this from: http://www.perlmonks.org/?node_id=190497

use NetAddr::IP;

my $space = new NetAddr::IP->new('10.128.0.0/17');

for my $ip (map { new NetAddr::IP->new($_) } &lt;DATA>)
{
    print $ip, "\n"
        if $space->contains($ip);
}

__DATA__
172.16.1.1
172.16.1.5
172.16.1.11
172.16.1.10
172.16.1.9
172.16.1.3
172.16.1.2
172.16.1.7
172.16.1.4
172.16.1.1
10.128.0.1
10.128.0.12
10.128.0.13
10.128.0.41
10.128.0.17
10.128.0.19
[download]

It Gives: syntax error at C:\strawberry\Scripts\NetAddrTest.plx line 5, near "<" syntax error at C:\strawberry\Scripts\NetAddrTest.plx line 6, near ">) " Execution of C:\strawberry\Scripts\NetAddrTest.plx aborted due to compilation er rors. What is <?

Comment on Within a range of IP Addresses Download Code

Replies are listed 'Best First'.
Re: Within a range of IP Addresses by NetWallah (Canon) on Mar 06, 2012 at 14:23 UTC
$me->contains($other) in NetAddr::IP. All great truths begin as blasphemies. ―George Bernard Shaw, writer, Nobel laureate (1856-1950)	[reply]
Re: Within a range of IP Addresses by marto (Cardinal) on Mar 06, 2012 at 14:24 UTC
See IP in range, or Super Search for more examples.	[reply]
Re: Within a range of IP Addresses by kcott (Archbishop) on Mar 06, 2012 at 14:29 UTC
If you type "IP range" in the Search box (top left corner) you'll find many references to this question. The first one I see (IP in range) probably fits the bill but have a look at others listed. -- Ken	[reply]
Re: Within a range of IP Addresses by kcott (Archbishop) on Mar 06, 2012 at 22:37 UTC
You've updated your original post without indicating such. The problem with this is that responses to your original may be invalidated. In this case, it looks like the first three respondents have completed ignored the second part of your question. As to your new question, from inspection only, `<DATA>` should probably be `<DATA>`. -- Ken	[reply] [d/l] [select]
Re^2: Within a range of IP Addresses by Saved (Beadle) on Mar 07, 2012 at 13:02 UTC
Thanx Ken and others, this has helped alot. Your time & effort is much appreciated. Bob.	[reply]