Mask.rb
This content was produced by an LLM and could include errors.
This script uses ipaddr to calculate and print network masks. It iterates 33 times, demonstrating how subnet masks are progressively generated, ranging from /32 down to /0.
require 'ipaddr'
#=> true
ip = IPAddr.new('255.255.255.255/32')
#=> #<IPAddr: IPv4:255.255.255.255/255.255.255.255>
33.times { |i| puts "#{i}\t#{ip.mask(i)}" }
0 0.0.0.0
1 128.0.0.0
2 192.0.0.0
3 224.0.0.0
4 240.0.0.0
5 248.0.0.0
6 252.0.0.0
7 254.0.0.0
8 255.0.0.0
9 255.128.0.0
10 255.192.0.0
11 255.224.0.0
12 255.240.0.0
13 255.248.0.0
14 255.252.0.0
15 255.254.0.0
16 255.255.0.0
17 255.255.128.0
18 255.255.192.0
19 255.255.224.0
20 255.255.240.0
21 255.255.248.0
22 255.255.252.0
23 255.255.254.0
24 255.255.255.0
25 255.255.255.128
26 255.255.255.192
27 255.255.255.224
28 255.255.255.240
29 255.255.255.248
30 255.255.255.252
31 255.255.255.254
32 255.255.255.255
#=> 33
Ruby 4.0.3