IPv4 32 bit 4 byte
IPv6 128 bit 16 byte
::1 loopback
FE80::/10

link local = LAN

FC00::/7

unique local

8th bit: 0: global assigned (fc), 1: random (fd)

2000::/3

global unicast address

2000::1 to 3fff:ffff:f…

2001::/32 teredo tunnel endpoint
2002::/16

6to4 tunnel endpoint

2002:<IPv4>::<IPv4>

IPv4 endpoint anycast 192.88.99.1

ff00:/8

multicast

with scope

ff02::1 all nodes
ff02::2 all routes
ff05::1:3 all DHCP servers
::ffff:0:0/96 IPv4-mapped IPv6 address
::ffff:0:0:0/96 IPv4-translated IPv6 address