IPv6 Protocol

IPv6 protocol

IPv6 is a protocol that was born from detected base deficiencies in IPv4. IPv4 has a maximum of 4,294,967,296 addresses while IPv6 has a maximum of 7.8 * 10^28 (vm). IPv6 addresses are assigned to interfaces, not nodes. An interface can have more than one IPv6 address, while a node can be responsible for more than one interface. Characteristics of IPv6 addresses

• An IPv6 address is 128 bits long and consists of eight 16-bit fields.
• The parts of the fields are 3:
  1. Prefix
  2. Subnet ID
  3. Interface ID
• Most of the IPv6 addresses ‘do not fill’ the 128 bits and in the absence of information in the capmos they are 0’s

IPv6 protocol:

• unicast: Identifies a single node interface.
• multicast: Identifies a group of Interfaces .
• anycast: Identifies interfaces that are members of anycast groups.