Bogon networks

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A bogon network is a range of IP addresses that are otherwise known as bogon addresses, those defined as Martians (private and reserved addresses defined by RFC 1918, RFC 5735, and RFC 6598) and netblocks that have not been allocated to a regional internet registry (RIR) by the Internet Assigned Numbers Authority.

Bogon IP addresses can, not entirely accurately, be thought of as fake IP addresses. The bogon IP space not assigned to any entity by Internet Assigned Numbers Authority (IANA) and RIR (Regional Internet Registry) may be as of yet unassigned or may be specially reserved for private network use. Addresses reserved for private networks, such as those in 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16 are considered bogon. Local machine loopback addresses like those in 127.0.0.0/8 and link-local addresses like 169.254.0.0/16 are also bogon.

bogon IP address ranges

IPv4 Bogon Ranges

0.0.0.0/8		"This" network
10.0.0.0/8		Private-use networks
100.64.0.0/10		Carrier-grade NAT
127.0.0.0/8		Loopback
127.0.53.53		Name collision occurrence
169.254.0.0/16		Link local
172.16.0.0/12		Private-use networks
192.0.0.0/24		IETF protocol assignments
192.0.2.0/24		TEST-NET-1
192.168.0.0/16		Private-use networks
198.18.0.0/15		Network interconnect device benchmark testing
198.51.100.0/24	TEST-NET-2
203.0.113.0/24		TEST-NET-3
224.0.0.0/4		Multicast
240.0.0.0/4		Reserved for future use
255.255.255.255/32	Limited broadcast

IPv6 Bogon Ranges

::/128			Node-scope unicast unspecified address
::1/128		Node-scope unicast loopback address
::ffff:0:0/96		IPv4-mapped addresses
::/96			IPv4-compatible addresses
100::/64		Remotely triggered black hole addresses
2001:10::/28		Overlay routable cryptographic hash identifiers (ORCHID)
2001:db8::/32		Documentation prefix
fc00::/7		Unique local addresses (ULA)
fe80::/10		Link-local unicast
fec0::/10		Site-local unicast (deprecated)
ff00::/8		Multicast (Note: ff0e:/16 is global scope and may appear on the global internet.)

IPv6 Additional Bogon Ranges

2002::/24		6to4 bogon (0.0.0.0/8)
2002:a00::/24		6to4 bogon (10.0.0.0/8)
2002:7f00::/24		6to4 bogon (127.0.0.0/8)
2002:a9fe::/32		6to4 bogon (169.254.0.0/16)
2002:ac10::/28		6to4 bogon (172.16.0.0/12)
2002:c000::/40		6to4 bogon (192.0.0.0/24)
2002:c000:200::/40	6to4 bogon (192.0.2.0/24)
2002:c0a8::/32		6to4 bogon (192.168.0.0/16)
2002:c612::/31		6to4 bogon (198.18.0.0/15)
2002:c633:6400::/40	6to4 bogon (198.51.100.0/24)
2002:cb00:7100::/40	6to4 bogon (203.0.113.0/24)
2002:e000::/20		6to4 bogon (224.0.0.0/4)
2002:f000::/20		6to4 bogon (240.0.0.0/4)
2002:ffff:ffff::/48	6to4 bogon (255.255.255.255/32)
2001::/40		Teredo bogon (0.0.0.0/8)
2001:0:a00::/40		Teredo bogon (10.0.0.0/8)
2001:0:7f00::/40	Teredo bogon (127.0.0.0/8)
2001:0:a9fe::/48	Teredo bogon (169.254.0.0/16)
2001:0:ac10::/44	Teredo bogon (172.16.0.0/12)
2001:0:c000::/56	Teredo bogon (192.0.0.0/24)
2001:0:c000:200::/56	Teredo bogon (192.0.2.0/24)
2001:0:c0a8::/48	Teredo bogon (192.168.0.0/16)
2001:0:c612::/47	Teredo bogon (198.18.0.0/15)
2001:0:c633:6400::/56	Teredo bogon (198.51.100.0/24)
2001:0:cb00:7100::/56	Teredo bogon (203.0.113.0/24)
2001:0:e000::/36	Teredo bogon (224.0.0.0/4)
2001:0:f000::/36	Teredo bogon (240.0.0.0/4)
2001:0:ffff:ffff::/64	Teredo bogon (255.255.255.255/32)