How does the device learn the value of the IPv6 Prefix for i

Solution

Answer :

In any network,devices are identified by its device address.In case of IPv6 network address and subnet address portion is same in a network.The first four groupings of numbers in every IPv6 address remain constant, and the last four groupings of numbers vary with each device.We can simplify our list of devices by substituting a prefix-length in place of the device address portion of the IPv6 address.Prefix-length specifies a range of devices and it is expressed as a slash (/) followed by an integer between 1 through 128.