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mask.rb
This Ruby code snippet demonstrates the use of the ipaddr gem to create and manipulate IP addresses. It initializes an IP address object with the value ‘255.255.255.255/32’ and then iterates 33 times, printing the IP address and its corresponding mask for each iteration. The mask function is used to display the address within the network and host portions.
Ruby code snippet
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
Executed with Ruby 3.4.5.