pfSense

function add_reserved_table(array $table, array $values) {

	global $reserved_table_names;

	if (!array_key_exists('name', $table)) {

		return;

	}

	$table['address'] = implode(' ', array_keys($values));

	$table['detail'] = implode('||', array_values($values));

	$reserved_table_names[$table['name']] = $table;

}

add_reserved_table(

	[

		'name' => '_loopback_',

		'type' => 'network',

		'descr' => 'IPv4 and IPv6 loopback networks.',

	],

	[

		'127.0.0.0/8' => 'Loopback', // RFC1122

		'::1/128' => 'Loopback Address', // RFC4291

	],

);

add_reserved_table(

	[

		'name' => '_linklocal4_',

		'type' => 'network',

		'descr' => 'IPv4 link-local networks.',

	],

	[

		'169.254.0.0/16' => 'Link Local', // RFC3927

	],

);

add_reserved_table(

	[

		'name' => '_linklocal6_',

		'type' => 'network',

		'descr' => 'IPv6 link-local networks.',

	],

	[

		'fe80::/10' => 'Linked-Scoped Unicast', // RFC4291

	],

);

add_reserved_table(

	[

		'name' => '_private4_',

		'type' => 'network',

		'descr' => 'IPv4 private networks.',

	],

	[

		'10.0.0.0/8' => 'Private-Use', // RFC1918

		'172.16.0.0/12' => 'Private-Use', // RFC1918

		'192.168.0.0/16' => 'Private-Use', // RFC1918

	],

);

add_reserved_table(

	[

		'name' => '_private6_',

		'type' => 'network',

		'descr' => 'IPv6 private networks.',

	],

	[

		'fc00::/7' => 'Unique-Local', // RFC4193

	],

);

add_reserved_table(

	[

		'name' => '_multicast4_',

		'type' => 'network',

		'descr' => 'IPv4 multicast networks.',

	],

	[

		'224.0.0.0/4' => 'Multicast', // RFC5771

	],

);

add_reserved_table(

	[

		'name' => '_multicast6_',

		'type' => 'network',

		'descr' => 'IPv6 multicast networks.',

	],

	[

		'ff00::/8' => 'Multicast', // RFC4291

	],

);

add_reserved_table(

	[

		'name' => '_reserved4_',

		'type' => 'network',

		'descr' => 'IPv4 networks reserved for local use.',

	],

	[

		'0.0.0.0/8' => 'This host on this network', // RFC1122

		'10.0.0.0/8' => 'Private-Use', // RFC1918

		'100.64.0.0/10' => 'Shared Address Space', // RFC6598

		'127.0.0.0/8' => 'Loopback', // RFC1122

		'169.254.0.0/16' => 'Link Local', // RFC3927

		'172.16.0.0/12' => 'Private-Use', // RFC1918

		'192.0.0.0/24' => 'IETF Protocol Assignments', // RFC6890

		'192.0.2.0/24' => 'Documentation (TEST-NET-1)', // RFC5737

		'192.88.99.0/24' => '6to4 Relay Anycast', // RFC3068

		'192.168.0.0/16' => 'Private-Use', // RFC1918

		'198.18.0.0/15' => 'Benchmarking', //RFC2544

		'198.51.100.0/24' => 'Documentation (TEST-NET-2)', // RFC5737

		'203.0.113.0/24' => 'Documentation (TEST-NET-3)', // RFC5737

		'224.0.0.0/4' => 'Multicast', // RFC5771

		'240.0.0.0/4' => 'Reserved', // RFC1112

		'255.255.255.255/32' => 'Limited Broadcast', // RFC0919

	]

);

add_reserved_table(

	[

		'name' => '_reserved6_',

		'type' => 'network',

		'descr' => 'IPv6 networks reserved for local use.',

	],

	[

		'::1/128' => 'Loopback Address', // RFC4291

		'::/128' => 'Unspecified Address', // RFC4291

		'::ffff:0:0/96' => 'IPv4-mapped Address', // RFC4291

		'64:ff9b::/96' => 'IPv4-IPv6 Translation', // RFC6052

		'64:ff9b:1::/48' => 'Local-Use IPv4/IPv6 Translation', // RFC8215

		'100::/64' => 'Discard-Only Address Block', // RFC6666

		'2001::/23' => 'IETF Protocol Assignments', // RFC2928

		'2001:2::/48' => 'Benchmarking', // RFC5180

		'2001:db8::/32' => 'Documentation', // RFC3849

		'2002::/16' => '6to4', // RFC3056

		'3fff::/20' => 'Documentation', // RFC9637

		'5f00::/16' => 'Segment Routing (SRv6) SIDs', // RFC9602

		'fc00::/7' => 'Unique-Local', // RFC4193

		'fe80::/10' => 'Linked-Scoped Unicast', // RFC4291

		'ff00::/8' => 'Multicast', // RFC4291

	]

);