File: README — Documentation for ipaddr

IPAddrExtensions
A selection of potentially useful extensions for IPAddr.
Example
>> IPAddr.new("192.0.2.0/24").length
=> 24
>> IPAddr.new("192.0.2.0/24").first
=> #<IPAddr: IPv4:192.0.2.0/255.255.255.255>
>> IPAddr.new("192.0.2.0/24").last
=> #<IPAddr: IPv4:192.0.2.255/255.255.255.255>
>> IPAddr.new("192.0.2.0/24").scope
=> "DOCUMENTATION"
>> IPAddr.new("192.0.2.0/24").local?
=> false
>> IPAddr.new("192.0.2.0/24").unicast?
=> false
>> IPAddr.new("192.0.2.0/24").multicast?
=> false
>> IPAddr.new("192.0.2.0/24").link?
=> false
>> IPAddr.new("192.0.2.0/24").documentation?
=> true
>> IPAddr.new("192.0.2.0/24").loopback?
=> false
>> IPAddr.new("192.0.2.0/24").global?
=> false
>> IPAddr.new("192.0.2.0/24").private?
=> false
>> IPAddr.new("192.0.2.0/24").space
=> 256
>> IPAddr.new("192.0.2.0/24").reverses
=> ["192.0.2.in-addr.arpa"]
>> IPAddr.new("192.0.2.0/24").host?
=> false
>> IPAddr.new("192.0.2.0/24").prefix?
=> true
>> IPAddr.new("2001:db8::/64").eui_64('00:0D:60:0F:3C:A8')
=> #<IPAddr: IPv6:2001:0db8:0000:0000:020d:60ff:fe0f:3ca8/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff>
>> IPAddr.new("2001:db8::/56").reverses
=> ["0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "1.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "2.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "3.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "4.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "5.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "6.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "7.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "8.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "9.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "a.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "b.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "c.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "d.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "e.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa", "f.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa"]
>> "192.0.2.0/24".to_ip
=> #<IPAddr: IPv4:192.0.2.0/255.255.255.0>
>> 12345.to_ip
=> #<IPAddr: IPv4:0.0.48.57/255.255.255.255>
>> 12345.to_ip(Socket::AF_INET6)
=> #<IPAddr: IPv6:0000:0000:0000:0000:0000:0000:0000:3039/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff>
>> ("2001:db8::/32".to_ip / 16).collect { |prefix| prefix.to_string_including_length }
=> ["2001:db8::/36", "2001:db8:1000::/36", "2001:db8:2000::/36", "2001:db8:3000::/36", "2001:db8:4000::/36", "2001:db8:5000::/36", "2001:db8:6000::/36", "2001:db8:7000::/36", "2001:db8:8000::/36", "2001:db8:9000::/36", "2001:db8:a000::/36", "2001:db8:b000::/36", "2001:db8:c000::/36", "2001:db8:d000::/36", "2001:db8:e000::/36", "2001:db8:f000::/36"]