Maybe add:

Class	Description	IPv4	IPv6
ipv4	All IPv4 addresses	0.0.0.0/0	–
ipv6	All IPv6 addresses	–	::/0
loopback	Loopback interfaces	127.0.0.0/8	::1/128
linklocal	Link-local unicast	169.254.0.0/16	fe80::/10
multicast	Multicast addresses	224.0.0.0/4	ff00::/8
rfc1918	Private IPv4 networks	10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16	–
private	All private/local-use networks	rfc1918	fc00::/7
shared	Shared address space (RFC 6598)	100.64.0.0/10	–
reserved	IANA reserved blocks	240.0.0.0/4	(various; see RFC 6890)
broadcast	Limited broadcast	255.255.255.255/32	–
documentation	Documentation/example networks	192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24	2001:db8::/32
benchmarking	Benchmark/test networks (RFC 2544)	198.18.0.0/15	–
carrier-grade-nat	CGNAT / ISP NAT pool	100.64.0.0/10	–
zeronet	0.0.0.0/8 special addresses	0.0.0.0/8	–
bogon	Unallocated/unrouted space	(dynamic)	(dynamic)

Class	Description	IPv4	IPv6
global	Publicly routable (non-private)	everything except private, loopback, linklocal, multicast, reserved	same
teredo	IPv6 transition (Teredo tunneling)	–	2001::/32
6to4	6to4 relay prefix	–	2002::/16
sixtofour	Alias for 6to4	–	2002::/16
documentationv4	Same as documentation	192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24	–

Something like that?

RFE: Add "ip classes" as needles #3

Description