Cybersecurity:

When an IPv6 device with no pre-configured IPv6 address powers up, it can calculate a global 128- bit IPv6 address for itself using Stateless Address Autoconfiguration (SLAAC), which combines two values: (a) a 64-bit IPv6 Prefix for the subnet (link) and (b) a 64-bit Interface ID.

a) (5 points) How does the device learn the value of the IPv6 Prefix for its subnet?

b) (5 points) How does the device determine the value of its Interface ID? Describe 2 ways.