class Subnet::Prefix32

• Subnet::Prefix32
• Subnet::Prefix
• Reference
• Object

Defined in:

Constant Summary

IN4MASK = 4294967295_i64

Constructors

• .new(num)

  Creates a new prefix object for 32 bits IPv4 addresses

Class Method Summary

• .parse_netmask(netmask)

  Creates a new prefix by parsing a netmask in dotted decimal form

Instance Method Summary

• #[](index)

  Shortcut for the octecs in the dotted decimal representation

• #bits

  Transforms the prefix into a string of bits representing the netmask

• #host_prefix

  Returns the length of the host portion of a netmask.

• #hostmask

  The hostmask is the contrary of the subnet mask, as it shows the bits that can change within the hosts

• #hostmask_octets

  Returns an array of octets representing the hostmask

• #octets

  An array of octets of the IPv4 dotted decimal format

• #to_ip

  Gives the prefix in IPv4 dotted decimal format, i.e.

• #to_u32

  Unsigned 32 bit number representing the prefix.

Constructor Detail

prefix = Subnet::Prefix32.new 24
# => 24

Class Method Detail

prefix = Subnet::Prefix32::parse_netmask "255.255.255.0"
  #=> 24

Instance Method Detail

prefix = Subnet::Prefix32.new 24

prefix[2]
# => 255

prefix = Subnet::Prefix32.new 24

prefix.bits
# => "11111111111111111111111100000000"

prefix = Prefix32.new 24

prefix.host_prefix
# => 8

prefix = Subnet::Prefix32.new 24

prefix.hostmask
# => "0.0.0.255"

prefix = Subnet::Prefix32.new 24

prefix.hostmask_octets
# => StaticArray["0", "0", "0", "255"]

prefix = Subnet::Prefix32.new 24

prefix.octets
# => [255, 255, 255, 0]

prefix = Subnet::Prefix32.new 24

prefix.to_ip
# => "255.255.255.0"

#=> 4294967040