ipv6

  • Welp, ipv4 got over. So we needed more addresses.
  • 128 bits. Much larger than 32 bits of ipv4.

Multicasting

  • Unlike ipv4, this doesn’t have a generic broadcast address for a subnet.
  • Just as IPv4 has 255.255.255.255 as the global subnet broadcast address, here the equivalent is ff02::1.
  • It is also possible to have a global multicast.
  • The first 64 bits are global address space (smallest subnet size).