Class | IPAddress::IPv6::Loopback |
In: |
lib/ipaddress/ipv6.rb
|
Parent: | IPAddress::IPv6 |
The loopback address is a unicast localhost address. If an
application in a host sends packets to this address, the IPv6 stack will loop these packets back on the same virtual interface.
Loopback addresses are expressed in the following form:
::1
or, with their appropriate prefix,
::1/128
As for the unspecified addresses, IPv6 loopbacks can be created with IPAddress calling their own class:
ip = IPAddress::IPv6::Loopback.new ip.to_string #=> "::1/128"
or by using the wrapper:
ip = IPAddress "::1" ip.to_string #=> "::1/128"
Checking if an address is loopback is easy with the IPv6#loopback? method:
ip.loopback? #=> true