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Документация  »  PHP класс для обработки IP адресов  »  Маска IP адреса версии 6 или как банить IPv6 адреса

Маска IP адреса версии 6 или как банить IPv6 адреса

Прежде всего прочтите про маски сети IPv4 для понимания некоторых моментов. Если с IPv4 всё просто, то с IPv6 всё куда веселее!

Во-первых, адрес IPv6 состоит из 32 шестнадцатеричных цифр, 8 секций/разрядов по 4 цифры в каждой, разделённые двоеточиями. Существует ряд зарезервированных областей: 2002::/16 - 6to4; 2001::/32 - Teredo-адреса (для передачи IPv6 пакетов через сети IPv4); fc00::/7 - уникальные локальные адреса (аналог NAT); Loopback - ::1 все пакеты, идущие на него не выходят за пределы устройства, а попадают обратно на уровень IP (адрес аналогичен 127.0.0.1 в IPv4). Итп. разные резервы и возможности, интересные только кругу специалистов занимающимися сетями.

Во-вторых, чётких правил выделения диапазонов нет, не смотря на то, что считается что каждая подсеть ffff:ffff:ffff:ffff::/64, провайдерам могут дать блок ffff:fff8::/29 итп., но в большинстве случаев это ffff:ffff:ffff:ffff::/64 реже ffff:ffff:ffff:fff0::/60, ffff:ffff:ffff:ff00::/56 и ffff:ffff:ffff::/48. Далее провайдер выдаёт диапазоны на блок ниже серверным(ЦОД) или каким-то предприятиям, если это ffff:fff8::/29 то это скорее всего ffff:ffff:ffff::/48, если ffff:ffff:ffff:ffff::/64 то ffff:ffff:ffff:ffff:ffff::/80 (281474976710656 адресов), ещё ниже вопрос встаёт о хостингах скажем ffff:ffff:ffff:ffff:ffff:ffff::/96 (4294967296 адресов) и конкретных серверах например ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:0/112 (65536 адресов). Т.е. остаётся вопрос размеров ботсетей у провайдера с которого ведётся атака и соответственно блоками в сторону увеличения баним /112, /96, /80, /64, /48, /32. Но основные всё же /112, /96, /80, всё что выше - уровень провайдера.

Таблица сетевых масок IPv6

CIDRМаскаКоличество адресов
/128ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff1
/127ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe2
/126ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc4
/125ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff88
/124ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff016
/123ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe032
/122ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffc064
/121ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff80128
/120ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00256
/119ffff:ffff:ffff:ffff:ffff:ffff:ffff:fe00512
/118ffff:ffff:ffff:ffff:ffff:ffff:ffff:fc001024
/117ffff:ffff:ffff:ffff:ffff:ffff:ffff:f8002048
/116ffff:ffff:ffff:ffff:ffff:ffff:ffff:f0004096
/115ffff:ffff:ffff:ffff:ffff:ffff:ffff:e0008192
/114ffff:ffff:ffff:ffff:ffff:ffff:ffff:c00016384
/113ffff:ffff:ffff:ffff:ffff:ffff:ffff:800032768
/112ffff:ffff:ffff:ffff:ffff:ffff:ffff:000065536
/111ffff:ffff:ffff:ffff:ffff:ffff:fffe:0000131072
/110ffff:ffff:ffff:ffff:ffff:ffff:fffc:0000262144
/109ffff:ffff:ffff:ffff:ffff:ffff:fff8:0000524288
/108ffff:ffff:ffff:ffff:ffff:ffff:fff0:00001048576
/107ffff:ffff:ffff:ffff:ffff:ffff:ffe0:00002097152
/106ffff:ffff:ffff:ffff:ffff:ffff:ffc0:00004194304
/105ffff:ffff:ffff:ffff:ffff:ffff:ff80:00008388608
/104ffff:ffff:ffff:ffff:ffff:ffff:ff00:000016777216
/103ffff:ffff:ffff:ffff:ffff:ffff:fe00:000033554432
/102ffff:ffff:ffff:ffff:ffff:ffff:fc00:000067108864
/101ffff:ffff:ffff:ffff:ffff:ffff:f800:0000134217728
/100ffff:ffff:ffff:ffff:ffff:ffff:f000:0000268435456
/99ffff:ffff:ffff:ffff:ffff:ffff:e000:0000536870912
/98ffff:ffff:ffff:ffff:ffff:ffff:c000:00001073741824
/97ffff:ffff:ffff:ffff:ffff:ffff:8000:00002147483648
/96ffff:ffff:ffff:ffff:ffff:ffff:0000:00004294967296
/95ffff:ffff:ffff:ffff:ffff:fffe:0000:00008589934592
/94ffff:ffff:ffff:ffff:ffff:fffc:0000:000017179869184
/93ffff:ffff:ffff:ffff:ffff:fff8:0000:000034359738368
/92ffff:ffff:ffff:ffff:ffff:fff0:0000:000068719476736
/91ffff:ffff:ffff:ffff:ffff:ffe0:0000:0000137438953472
/90ffff:ffff:ffff:ffff:ffff:ffc0:0000:0000274877906944
/89ffff:ffff:ffff:ffff:ffff:ff80:0000:0000549755813888
/88ffff:ffff:ffff:ffff:ffff:ff00:0000:00001099511627776
/87ffff:ffff:ffff:ffff:ffff:fe00:0000:00002199023255552
/86ffff:ffff:ffff:ffff:ffff:fc00:0000:00004398046511104
/85ffff:ffff:ffff:ffff:ffff:f800:0000:00008796093022208
/84ffff:ffff:ffff:ffff:ffff:f000:0000:000017592186044416
/83ffff:ffff:ffff:ffff:ffff:e000:0000:000035184372088832
/82ffff:ffff:ffff:ffff:ffff:c000:0000:000070368744177664
/81ffff:ffff:ffff:ffff:ffff:8000:0000:0000140737488355328
/80ffff:ffff:ffff:ffff:ffff:0000:0000:0000281474976710656
/79ffff:ffff:ffff:ffff:fffe:0000:0000:0000562949953421312
/78ffff:ffff:ffff:ffff:fffc:0000:0000:00001125899906842624
/77ffff:ffff:ffff:ffff:fff8:0000:0000:00002251799813685248
/76ffff:ffff:ffff:ffff:fff0:0000:0000:00004503599627370496
/75ffff:ffff:ffff:ffff:ffe0:0000:0000:00009007199254740992
/74ffff:ffff:ffff:ffff:ffc0:0000:0000:000018014398509481984
/73ffff:ffff:ffff:ffff:ff80:0000:0000:000036028797018963968
/72ffff:ffff:ffff:ffff:ff00:0000:0000:000072057594037927936
/71ffff:ffff:ffff:ffff:fe00:0000:0000:0000144115188075855872
/70ffff:ffff:ffff:ffff:fc00:0000:0000:0000288230376151711744
/69ffff:ffff:ffff:ffff:f800:0000:0000:0000576460752303423488
/68ffff:ffff:ffff:ffff:f000:0000:0000:00001152921504606846976
/67ffff:ffff:ffff:ffff:e000:0000:0000:00002305843009213693952
/66ffff:ffff:ffff:ffff:c000:0000:0000:00004611686018427387904
/65ffff:ffff:ffff:ffff:8000:0000:0000:00009223372036854775808
/64ffff:ffff:ffff:ffff:0000:0000:0000:000018446744073709551616
/63ffff:ffff:ffff:fffe:0000:0000:0000:000036893488147419103232
/62ffff:ffff:ffff:fffc:0000:0000:0000:000073786976294838206464
/61ffff:ffff:ffff:fff8:0000:0000:0000:0000147573952589676412928
/60ffff:ffff:ffff:fff0:0000:0000:0000:0000295147905179352825856
/59ffff:ffff:ffff:ffe0:0000:0000:0000:0000590295810358705651712
/58ffff:ffff:ffff:ffc0:0000:0000:0000:00001180591620717411303424
/57ffff:ffff:ffff:ff80:0000:0000:0000:00002361183241434822606848
/56ffff:ffff:ffff:ff00:0000:0000:0000:00004722366482869645213696
/55ffff:ffff:ffff:fe00:0000:0000:0000:00009444732965739290427392
/54ffff:ffff:ffff:fc00:0000:0000:0000:000018889465931478580854784
/53ffff:ffff:ffff:f800:0000:0000:0000:000037778931862957161709568
/52ffff:ffff:ffff:f000:0000:0000:0000:000075557863725914323419136
/51ffff:ffff:ffff:e000:0000:0000:0000:0000151115727451828646838272
/50ffff:ffff:ffff:c000:0000:0000:0000:0000302231454903657293676544
/49ffff:ffff:ffff:8000:0000:0000:0000:0000604462909807314587353088
/48ffff:ffff:ffff:0000:0000:0000:0000:00001208925819614629174706176
/47ffff:ffff:fffe:0000:0000:0000:0000:00002417851639229258349412352
/46ffff:ffff:fffc:0000:0000:0000:0000:00004835703278458516698824704
/45ffff:ffff:fff8:0000:0000:0000:0000:00009671406556917033397649408
/44ffff:ffff:fff0:0000:0000:0000:0000:000019342813113834066795298816
/43ffff:ffff:ffe0:0000:0000:0000:0000:000038685626227668133590597632
/42ffff:ffff:ffc0:0000:0000:0000:0000:000077371252455336267181195264
/41ffff:ffff:ff80:0000:0000:0000:0000:0000154742504910672534362390528
/40ffff:ffff:ff00:0000:0000:0000:0000:0000309485009821345068724781056
/39ffff:ffff:fe00:0000:0000:0000:0000:0000618970019642690137449562112
/38ffff:ffff:fc00:0000:0000:0000:0000:00001237940039285380274899124224
/37ffff:ffff:f800:0000:0000:0000:0000:00002475880078570760549798248448
/36ffff:ffff:f000:0000:0000:0000:0000:00004951760157141521099596496896
/35ffff:ffff:e000:0000:0000:0000:0000:00009903520314283042199192993792
/34ffff:ffff:c000:0000:0000:0000:0000:000019807040628566084398385987584
/33ffff:ffff:8000:0000:0000:0000:0000:000039614081257132168796771975168
/32ffff:ffff:0000:0000:0000:0000:0000:000079228162514264337593543950336
/31ffff:fffe:0000:0000:0000:0000:0000:0000158456325028528675187087900672
/30ffff:fffc:0000:0000:0000:0000:0000:0000316912650057057350374175801344
/29ffff:fff8:0000:0000:0000:0000:0000:0000633825300114114700748351602688
/28ffff:fff0:0000:0000:0000:0000:0000:00001267650600228229401496703205376
/27ffff:ffe0:0000:0000:0000:0000:0000:00002535301200456458802993406410752
/26ffff:ffc0:0000:0000:0000:0000:0000:00005070602400912917605986812821504
/25ffff:ff80:0000:0000:0000:0000:0000:000010141204801825835211973625643008
/24ffff:ff00:0000:0000:0000:0000:0000:000020282409603651670423947251286016
/23ffff:fe00:0000:0000:0000:0000:0000:000040564819207303340847894502572032
/22ffff:fc00:0000:0000:0000:0000:0000:000081129638414606681695789005144064
/21ffff:f800:0000:0000:0000:0000:0000:0000162259276829213363391578010288128
/20ffff:f000:0000:0000:0000:0000:0000:0000324518553658426726783156020576256
/19ffff:e000:0000:0000:0000:0000:0000:0000649037107316853453566312041152512
/18ffff:c000:0000:0000:0000:0000:0000:00001298074214633706907132624082305024
/17ffff:8000:0000:0000:0000:0000:0000:00002596148429267413814265248164610048
/16ffff:0000:0000:0000:0000:0000:0000:00005192296858534827628530496329220096
/15fffe:0000:0000:0000:0000:0000:0000:000010384593717069655257060992658440192
/14fffc:0000:0000:0000:0000:0000:0000:000020769187434139310514121985316880384
/13fff8:0000:0000:0000:0000:0000:0000:000041538374868278621028243970633760768
/12fff0:0000:0000:0000:0000:0000:0000:000083076749736557242056487941267521536
/11ffe0:0000:0000:0000:0000:0000:0000:0000166153499473114484112975882535043072
/10ffc0:0000:0000:0000:0000:0000:0000:0000332306998946228968225951765070086144
/9ff80:0000:0000:0000:0000:0000:0000:0000664613997892457936451903530140172288
/8ff00:0000:0000:0000:0000:0000:0000:00001329227995784915872903807060280344576
/7fe00:0000:0000:0000:0000:0000:0000:00002658455991569831745807614120560689152
/6fc00:0000:0000:0000:0000:0000:0000:00005316911983139663491615228241121378304
/5f800:0000:0000:0000:0000:0000:0000:000010633823966279326983230456482242756608
/4f000:0000:0000:0000:0000:0000:0000:000021267647932558653966460912964485513216
/3e000:0000:0000:0000:0000:0000:0000:000042535295865117307932921825928971026432
/2c000:0000:0000:0000:0000:0000:0000:000085070591730234615865843651857942052864
/18000:0000:0000:0000:0000:0000:0000:0000170141183460469231731687303715884105728
/00000:0000:0000:0000:0000:0000:0000:0000340282366920938463463374607431768211456

Таблица сетевых масок IPv6 в сжатом виде

CIDRМаска
/128ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
/127ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe
/126ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc
/125ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff8
/124ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0
/123ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe0
/122ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffc0
/121ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff80
/120ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00
/119ffff:ffff:ffff:ffff:ffff:ffff:ffff:fe00
/118ffff:ffff:ffff:ffff:ffff:ffff:ffff:fc00
/117ffff:ffff:ffff:ffff:ffff:ffff:ffff:f800
/116ffff:ffff:ffff:ffff:ffff:ffff:ffff:f000
/115ffff:ffff:ffff:ffff:ffff:ffff:ffff:e000
/114ffff:ffff:ffff:ffff:ffff:ffff:ffff:c000
/113ffff:ffff:ffff:ffff:ffff:ffff:ffff:8000
/112ffff:ffff:ffff:ffff:ffff:ffff:ffff:0
/111ffff:ffff:ffff:ffff:ffff:ffff:fffe:0
/110ffff:ffff:ffff:ffff:ffff:ffff:fffc:0
/109ffff:ffff:ffff:ffff:ffff:ffff:fff8:0
/108ffff:ffff:ffff:ffff:ffff:ffff:fff0:0
/107ffff:ffff:ffff:ffff:ffff:ffff:ffe0:0
/106ffff:ffff:ffff:ffff:ffff:ffff:ffc0:0
/105ffff:ffff:ffff:ffff:ffff:ffff:ff80:0
/104ffff:ffff:ffff:ffff:ffff:ffff:ff00:0
/103ffff:ffff:ffff:ffff:ffff:ffff:fe00:0
/102ffff:ffff:ffff:ffff:ffff:ffff:fc00:0
/101ffff:ffff:ffff:ffff:ffff:ffff:f800:0
/100ffff:ffff:ffff:ffff:ffff:ffff:f000:0
/99ffff:ffff:ffff:ffff:ffff:ffff:e000:0
/98ffff:ffff:ffff:ffff:ffff:ffff:c000:0
/97ffff:ffff:ffff:ffff:ffff:ffff:8000:0
/96ffff:ffff:ffff:ffff:ffff:ffff::
/95ffff:ffff:ffff:ffff:ffff:fffe::
/94ffff:ffff:ffff:ffff:ffff:fffc::
/93ffff:ffff:ffff:ffff:ffff:fff8::
/92ffff:ffff:ffff:ffff:ffff:fff0::
/91ffff:ffff:ffff:ffff:ffff:ffe0::
/90ffff:ffff:ffff:ffff:ffff:ffc0::
/89ffff:ffff:ffff:ffff:ffff:ff80::
/88ffff:ffff:ffff:ffff:ffff:ff00::
/87ffff:ffff:ffff:ffff:ffff:fe00::
/86ffff:ffff:ffff:ffff:ffff:fc00::
/85ffff:ffff:ffff:ffff:ffff:f800::
/84ffff:ffff:ffff:ffff:ffff:f000::
/83ffff:ffff:ffff:ffff:ffff:e000::
/82ffff:ffff:ffff:ffff:ffff:c000::
/81ffff:ffff:ffff:ffff:ffff:8000::
/80ffff:ffff:ffff:ffff:ffff::
/79ffff:ffff:ffff:ffff:fffe::
/78ffff:ffff:ffff:ffff:fffc::
/77ffff:ffff:ffff:ffff:fff8::
/76ffff:ffff:ffff:ffff:fff0::
/75ffff:ffff:ffff:ffff:ffe0::
/74ffff:ffff:ffff:ffff:ffc0::
/73ffff:ffff:ffff:ffff:ff80::
/72ffff:ffff:ffff:ffff:ff00::
/71ffff:ffff:ffff:ffff:fe00::
/70ffff:ffff:ffff:ffff:fc00::
/69ffff:ffff:ffff:ffff:f800::
/68ffff:ffff:ffff:ffff:f000::
/67ffff:ffff:ffff:ffff:e000::
/66ffff:ffff:ffff:ffff:c000::
/65ffff:ffff:ffff:ffff:8000::
/64ffff:ffff:ffff:ffff::
/63ffff:ffff:ffff:fffe::
/62ffff:ffff:ffff:fffc::
/61ffff:ffff:ffff:fff8::
/60ffff:ffff:ffff:fff0::
/59ffff:ffff:ffff:ffe0::
/58ffff:ffff:ffff:ffc0::
/57ffff:ffff:ffff:ff80::
/56ffff:ffff:ffff:ff00::
/55ffff:ffff:ffff:fe00::
/54ffff:ffff:ffff:fc00::
/53ffff:ffff:ffff:f800::
/52ffff:ffff:ffff:f000::
/51ffff:ffff:ffff:e000::
/50ffff:ffff:ffff:c000::
/49ffff:ffff:ffff:8000::
/48ffff:ffff:ffff::
/47ffff:ffff:fffe::
/46ffff:ffff:fffc::
/45ffff:ffff:fff8::
/44ffff:ffff:fff0::
/43ffff:ffff:ffe0::
/42ffff:ffff:ffc0::
/41ffff:ffff:ff80::
/40ffff:ffff:ff00::
/39ffff:ffff:fe00::
/38ffff:ffff:fc00::
/37ffff:ffff:f800::
/36ffff:ffff:f000::
/35ffff:ffff:e000::
/34ffff:ffff:c000::
/33ffff:ffff:8000::
/32ffff:ffff::
/31ffff:fffe::
/30ffff:fffc::
/29ffff:fff8::
/28ffff:fff0::
/27ffff:ffe0::
/26ffff:ffc0::
/25ffff:ff80::
/24ffff:ff00::
/23ffff:fe00::
/22ffff:fc00::
/21ffff:f800::
/20ffff:f000::
/19ffff:e000::
/18ffff:c000::
/17ffff:8000::
/16ffff::
/15fffe::
/14fffc::
/13fff8::
/12fff0::
/11ffe0::
/10ffc0::
/9ff80::
/8ff00::
/7fe00::
/6fc00::
/5f800::
/4f000::
/3e000::
/2c000::
/18000::
/0::

Таблица масок подсетей виде числа

CIDRМаскаЗначение
/128ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff340282366920938463463374607431768211455
/127ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe340282366920938463463374607431768211454
/126ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc340282366920938463463374607431768211452
/125ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff8340282366920938463463374607431768211448
/124ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0340282366920938463463374607431768211440
/123ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe0340282366920938463463374607431768211424
/122ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffc0340282366920938463463374607431768211392
/121ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff80340282366920938463463374607431768211328
/120ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00340282366920938463463374607431768211200
/119ffff:ffff:ffff:ffff:ffff:ffff:ffff:fe00340282366920938463463374607431768210944
/118ffff:ffff:ffff:ffff:ffff:ffff:ffff:fc00340282366920938463463374607431768210432
/117ffff:ffff:ffff:ffff:ffff:ffff:ffff:f800340282366920938463463374607431768209408
/116ffff:ffff:ffff:ffff:ffff:ffff:ffff:f000340282366920938463463374607431768207360
/115ffff:ffff:ffff:ffff:ffff:ffff:ffff:e000340282366920938463463374607431768203264
/114ffff:ffff:ffff:ffff:ffff:ffff:ffff:c000340282366920938463463374607431768195072
/113ffff:ffff:ffff:ffff:ffff:ffff:ffff:8000340282366920938463463374607431768178688
/112ffff:ffff:ffff:ffff:ffff:ffff:ffff:0000340282366920938463463374607431768145920
/111ffff:ffff:ffff:ffff:ffff:ffff:fffe:0000340282366920938463463374607431768080384
/110ffff:ffff:ffff:ffff:ffff:ffff:fffc:0000340282366920938463463374607431767949312
/109ffff:ffff:ffff:ffff:ffff:ffff:fff8:0000340282366920938463463374607431767687168
/108ffff:ffff:ffff:ffff:ffff:ffff:fff0:0000340282366920938463463374607431767162880
/107ffff:ffff:ffff:ffff:ffff:ffff:ffe0:0000340282366920938463463374607431766114304
/106ffff:ffff:ffff:ffff:ffff:ffff:ffc0:0000340282366920938463463374607431764017152
/105ffff:ffff:ffff:ffff:ffff:ffff:ff80:0000340282366920938463463374607431759822848
/104ffff:ffff:ffff:ffff:ffff:ffff:ff00:0000340282366920938463463374607431751434240
/103ffff:ffff:ffff:ffff:ffff:ffff:fe00:0000340282366920938463463374607431734657024
/102ffff:ffff:ffff:ffff:ffff:ffff:fc00:0000340282366920938463463374607431701102592
/101ffff:ffff:ffff:ffff:ffff:ffff:f800:0000340282366920938463463374607431633993728
/100ffff:ffff:ffff:ffff:ffff:ffff:f000:0000340282366920938463463374607431499776000
/99ffff:ffff:ffff:ffff:ffff:ffff:e000:0000340282366920938463463374607431231340544
/98ffff:ffff:ffff:ffff:ffff:ffff:c000:0000340282366920938463463374607430694469632
/97ffff:ffff:ffff:ffff:ffff:ffff:8000:0000340282366920938463463374607429620727808
/96ffff:ffff:ffff:ffff:ffff:ffff:0000:0000340282366920938463463374607427473244160
/95ffff:ffff:ffff:ffff:ffff:fffe:0000:0000340282366920938463463374607423178276864
/94ffff:ffff:ffff:ffff:ffff:fffc:0000:0000340282366920938463463374607414588342272
/93ffff:ffff:ffff:ffff:ffff:fff8:0000:0000340282366920938463463374607397408473088
/92ffff:ffff:ffff:ffff:ffff:fff0:0000:0000340282366920938463463374607363048734720
/91ffff:ffff:ffff:ffff:ffff:ffe0:0000:0000340282366920938463463374607294329257984
/90ffff:ffff:ffff:ffff:ffff:ffc0:0000:0000340282366920938463463374607156890304512
/89ffff:ffff:ffff:ffff:ffff:ff80:0000:0000340282366920938463463374606882012397568
/88ffff:ffff:ffff:ffff:ffff:ff00:0000:0000340282366920938463463374606332256583680
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/81ffff:ffff:ffff:ffff:ffff:8000:0000:0000340282366920938463463374466694279856128
/80ffff:ffff:ffff:ffff:ffff:0000:0000:0000340282366920938463463374325956791500800
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Таблица масок подсетей в двоичном представлении (в бинарном виде)

CIDRЗначение
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