About ipv6
参考
RFC 2460: Internet Protocol, Version 6 (IPv6) Specification
Range blocks/IPv6
Technical explanation
IPv6 地址的长度均为 128 位。因为 IPv6 地址中的每个数字可以有 16 个不同的值（从 0 到 F=15），每个数字代表 4 位（一个半字节）的整体值，总共 32 个数字。与 IPv4 一样，CIDR 表示法根据位的公共前缀来描述范围。例如 2001:db8::/32 表示所描述的范围的前 32 位设置为二进制数字 00100000000000010000110110111000。与 IPv4 一样，MediaWiki 使用 CIDR 表示法实现 IPv6 范围块。
Collateral damage
评估 IPv6 范围块附带损害的最佳指南是检查WHOIS以及该范围内的实际活动量。MediaWiki 支持使用Special:Contributions查找范围的贡献，例如Special:Contributions/2001:db8::/32（请注意，后一个范围不会返回任何编辑）。
在评估附带损害时，了解分配给最终用户的 IPv6 地址非常重要。要了解的最重要的事实是，用于最终用户连接的单个或多个 /64 子网是 IPv6 的实际要求。这意味着 IPv6 连接将至少有 2 64 个地址分配给它们，大约 180 亿个；有时他们可以拥有更多。IPv6 需要 /64 子网划分的原因是，任何偏离它都会破坏大量 IPv6 协议，而且未来的发展也需要它。[1] 长于 /64 子网的唯一例外是某些不需要许多 IPv6 功能的连接，例如用于点对点路由器间链接的 /126 子网。[1] 但这与 IPv6 范围阻塞无关，因为最终用户不会拥有这种地址。
因此，在许多方面，IPv6 /64 范围块类似于单个 IPv4 地址块，因为 /64 子网是连接的标准，尽管有时最终用户分配将包括多个 /64 子网。所以一般来说推荐使用 IPv6 /64 范围块，因为单个 IPv6 地址块很容易被技术知识很少的用户绕过，并且通常附带损害的风险很低。但是请注意，就像在 IPv4 中一样，单个静态 IPv4 地址可能会提供给家庭或某种机构，而静态 IPv6 /64 范围也可能会提供给家庭或机构，因此多个用户可能会受到 /64 范围块的影响。
一个例外是移动宽带接入；这些 IP 是在一定范围内动态分配的，阻止这些 IP 不太可能成功，因为它们很容易被规避并有附带损害的风险；这适用于所有类型的块，无论它们是单个地址或范围的 IPv4 或 IPv6 块。可以使用 WHOIS 服务检查移动宽带地址。请注意，IPv6 /64 范围不太可能是动态的，而是可能是静态的，并且对于最终用户通常不会改变。这是由于大量可用的 IPv6 地址，这意味着动态分配是不必要的；这降低了附带损害的风险。
如何计算 IPv6 CIDR 范围
虽然类似的原则也适用于 IPv4，但十六进制数字恰好对应一个半字节（4 位）这一事实在某种程度上简化了计算。
- 找到公共前缀——即所有地址共享的数字字符串。
- 完全展开公共前缀（包括多余的零），并将总位数乘以 4 - 这就是公共前缀的大小。
- 使用下表，并将指定的数字添加到您的前缀大小（这是您的 CIDR 后缀，该范围内所有地址共有的位数）。将指定的数字附加到您在步骤 1 中找到的公共前缀。如有必要，用零完成四位数字组。
- 然后，CIDR 为 [通用前缀（带有下表指定的附加数字，后跟必要的零以保持四位数字组完整）]/[通用前缀长度（加上 1,2 或 3，如下表所示）以下）]。
Prefix modification table
Example: If your prefix is 2001:db8:abcd:: (completely expanded to 2001:0db8:abcd::), and you have addresses like 2001:db8:abcd:9000:abe:: and 2001:db8:abcd:a000::, you’d use the entry saying that the digits after your prefix match 8-b, append 8 to the prefix, and add 2 to your common prefix’s size. This would generate 2001:db8:abcd:8000::/50.
| If digit after prefix only matches… | Append this digit to your prefix | Add this to your common prefix length |
|---|---|---|
| 0-f | 0 | 0 |
| 0-7 | 0 | 1 |
| 8-f | 8 | |
| 0-3 | 0 | 2 |
| 4-7 | 4 | |
| 8-b | 8 | |
| c-f | c | |
| 0-1 | 0 | 3 |
| 2-3 | 2 | |
| 4-5 | 4 | |
| 6-7 | 6 | |
| 8-9 | 8 | |
| a-b | a | |
| c-d | c | |
| e-f | e |
Range table
The color-coding is approximate, and there will be overlaps.
| CIDR | Start of range | End of range | Total addresses | Total /64 subnets |
|---|---|---|---|---|
::/0 |
:: |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
340,282,366,920,938,463,463,374,607,431,768,211,456 | 18,446,744,073,709,551,616 |
::/1 |
:: |
7fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
170,141,183,460,469,231,731,687,303,715,884,105,728 | 9,223,372,036,854,775,808 |
::/2 |
:: |
3fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
85,070,591,730,234,615,865,843,651,857,942,052,864 | 4,611,686,018,427,387,904 |
2000::/3 |
2000:: |
3fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
42,535,295,865,117,307,932,921,825,928,921,026,432 | 2,305,843,009,213,693,452 |
2000::/4 |
2000:: |
2fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
21,267,647,932,558,653,966,460,912,964,485,513,216 | 1,152,921,504,606,846,976 |
2000::/5 |
2000:: |
27ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
10,633,823,966,279,326,983,230,456,482,242,756,608 | 576,460,752,303,423,488 |
2000::/6 |
2000:: |
23ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
5,316,911,983,139,663,491,615,228,241,121,378,304 | 288,230,376,151,711,744 |
2000::/7 |
2000:: |
21ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
2,658,455,991,569,831,745,807,614,120,560,689,152 | 144,115,188,075,855,872 |
2000::/8 |
2000:: |
20ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
1,329,227,995,784,915,872,903,807,060,280,344,576 | 72,057,594,037,927,936 |
2000::/9 |
2000:: |
207f:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
664,613,997,892,457,936,451,903,530,140,172,288 | 36,028,797,018,963,968 |
2000::/10 |
2000:: |
203f:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
332,306,998,946,228,968,225,951,765,070,086,144 | 18,014,398,509,481,984 |
2000::/11 |
2000:: |
201f:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
166,153,499,473,114,484,112,975,882,535,043,072 | 9,007,199,254,740,992 |
2000::/12 |
2000:: |
200f:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
83,076,749,736,557,242,056,487,941,267,521,536 | 4,503,599,627,370,496 |
2000::/13 |
2000:: |
2007:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
41,538,374,868,278,621,028,243,970,633,760,768 | 2,251,799,813,685,248 |
2000::/14 |
2000:: |
2003:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
20,769,187,434,139,310,514,121,985,316,880,384 | 1,125,899,906,842,624 |
2000::/15 |
2000:: |
2001:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
10,384,593,717,069,655,257,060,992,658,440,192 | 562,949,953,421,312 |
2001::/16 |
2001:: |
2001:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
5,192,296,858,534,827,628,530,496,329,220,096 | 281,474,976,710,656 |
2001::/17 |
2001:: |
2001:7fff:ffff:ffff:ffff:ffff:ffff:ffff |
2,596,148,429,267,413,814,265,248,164,610,048 | 140,737,488,355,328 |
2001::/18 |
2001:: |
2001:3fff:ffff:ffff:ffff:ffff:ffff:ffff |
1,298,074,214,633,706,907,132,624,082,305,024 | 70,368,744,177,664 |
2001::/19 |
2001:: |
2001:1fff:ffff:ffff:ffff:ffff:ffff:ffff |
649,037,107,316,853,453,566,312,041,152,512 | 35,184,372,088,832 |
2001::/20 |
2001:: |
2001:0fff:ffff:ffff:ffff:ffff:ffff:ffff |
324,518,553,658,426,726,783,156,020,576,256 | 17,592,186,044,416 |
2001:800::/21 |
2001:800:: |
2001:0fff:ffff:ffff:ffff:ffff:ffff:ffff |
162,259,276,829,213,363,391,578,010,288,128 | 8,796,093,022,208 |
2001:c00::/22 |
2001:c00:: |
2001:0fff:ffff:ffff:ffff:ffff:ffff:ffff |
81,129,638,414,606,681,695,789,005,144,064 | 4,398,046,511,104 |
2001:c00::/23 |
2001:c00:: |
2001:0dff:ffff:ffff:ffff:ffff:ffff:ffff |
40,564,819,207,303,340,847,894,502,572,032 | 2,199,023,255,552 |
2001:d00::/24 |
2001:d00:: |
2001:0dff:ffff:ffff:ffff:ffff:ffff:ffff |
20,282,409,603,651,670,423,947,251,286,016 | 1,099,511,627,776 |
2001:d80::/25 |
2001:d80:: |
2001:0dff:ffff:ffff:ffff:ffff:ffff:ffff |
10,141,204,801,825,835,211,973,625,643,008 | 549,755,813,888 |
2001:d80::/26 |
2001:d80:: |
2001:0dbf:ffff:ffff:ffff:ffff:ffff:ffff |
5,070,602,400,912,917,605,986,812,821,504 | 274,877,906,944 |
2001:da0::/27 |
2001:da0:: |
2001:0dbf:ffff:ffff:ffff:ffff:ffff:ffff |
2,535,301,200,456,458,802,993,406,410,752 | 137,438,953,472 |
2001:db0::/28 |
2001:db0:: |
2001:0dbf:ffff:ffff:ffff:ffff:ffff:ffff |
1,267,650,600,228,229,401,496,703,205,376 | 68,719,476,736 |
2001:db8::/29 |
2001:db8:: |
2001:0dbf:ffff:ffff:ffff:ffff:ffff:ffff |
633,825,300,114,114,700,748,351,602,688 | 34,359,738,368 |
2001:db8::/30 |
2001:db8:: |
2001:0dbb:ffff:ffff:ffff:ffff:ffff:ffff |
316,912,650,057,057,350,374,175,801,344 | 17,179,869,184 |
2001:db8::/31 |
2001:db8:: |
2001:0db9:ffff:ffff:ffff:ffff:ffff:ffff |
158,456,325,028,528,675,187,087,900,672 | 8,589,934,592 |
2001:db8::/32 |
2001:db8:: |
2001:db8:ffff:ffff:ffff:ffff:ffff:ffff |
79,228,162,514,264,337,593,543,950,336 | 4,294,967,296 |
2001:db8::/33 |
2001:db8:: |
2001:db8:7fff:ffff:ffff:ffff:ffff:ffff |
39,614,081,257,132,168,796,771,975,168 | 2,147,483,648 |
2001:db8::/34 |
2001:db8:: |
2001:db8:3fff:ffff:ffff:ffff:ffff:ffff |
19,807,040,628,566,084,398,385,987,584 | 1,073,741,824 |
2001:db8::/35 |
2001:db8:: |
2001:db8:1fff:ffff:ffff:ffff:ffff:ffff |
9,903,520,314,283,042,199,192,993,792 | 536,870,912 |
2001:db8::/36 |
2001:db8:: |
2001:db8:0fff:ffff:ffff:ffff:ffff:ffff |
4,951,760,157,141,521,099,596,496,896 | 268,435,456 |
2001:db8::/37 |
2001:db8:: |
2001:db8:07ff:ffff:ffff:ffff:ffff:ffff |
2,475,880,078,570,760,549,798,248,448 | 134,217,728 |
2001:db8::/38 |
2001:db8:: |
2001:db8:03ff:ffff:ffff:ffff:ffff:ffff |
1,237,940,039,285,380,274,899,124,224 | 67,108,864 |
2001:db8::/39 |
2001:db8:: |
2001:db8:01ff:ffff:ffff:ffff:ffff:ffff |
618,970,019,642,690,137,449,562,112 | 33,554,432 |
2001:db8::/40 |
2001:db8:: |
2001:db8:00ff:ffff:ffff:ffff:ffff:ffff |
309,485,009,821,345,068,724,781,056 | 16,777,216 |
2001:db8::/41 |
2001:db8:: |
2001:db8:007f:ffff:ffff:ffff:ffff:ffff |
154,742,504,910,672,534,362,390,528 | 8,388,608 |
2001:db8::/42 |
2001:db8:: |
2001:db8:003f:ffff:ffff:ffff:ffff:ffff |
77,371,252,455,336,267,181,195,264 | 4,194,304 |
2001:db8::/43 |
2001:db8:: |
2001:db8:001f:ffff:ffff:ffff:ffff:ffff |
38,685,626,227,668,133,590,597,632 | 2,097,152 |
2001:db8::/44 |
2001:db8:: |
2001:db8:000f:ffff:ffff:ffff:ffff:ffff |
19,342,813,113,834,066,795,298,816 | 1,048,576 |
2001:db8::/45 |
2001:db8:: |
2001:db8:0007:ffff:ffff:ffff:ffff:ffff |
9,671,406,556,917,033,397,649,408 | 524,288 |
2001:db8::/46 |
2001:db8:: |
2001:db8:0003:ffff:ffff:ffff:ffff:ffff |
4,835,703,278,458,516,698,824,704 | 262,144 |
2001:db8::/47 |
2001:db8:: |
2001:db8:0001:ffff:ffff:ffff:ffff:ffff |
2,417,851,639,229,258,349,412,352 | 131,072 |
2001:db8::/48 |
2001:db8:: |
2001:db8:0000:ffff:ffff:ffff:ffff:ffff |
1,208,925,819,614,629,174,706,176 | 65,536 |
2001:db8::/49 |
2001:db8:: |
2001:db8:0000:7fff:ffff:ffff:ffff:ffff |
604,462,909,807,314,587,353,088 | 32,768 |
2001:db8::/50 |
2001:db8:: |
2001:db8:0000:3fff:ffff:ffff:ffff:ffff |
302,231,454,903,657,293,676,544 | 16,384 |
2001:db8::/51 |
2001:db8:: |
2001:db8:0000:1fff:ffff:ffff:ffff:ffff |
151,115,727,451,828,646,838,272 | 8,192 |
2001:db8::/52 |
2001:db8:: |
2001:db8:0000:0fff:ffff:ffff:ffff:ffff |
75,557,863,725,914,323,419,136 | 4,096 |
2001:db8::/53 |
2001:db8:: |
2001:db8:0000:07ff:ffff:ffff:ffff:ffff |
37,778,931,862,957,161,709,568 | 2,048 |
2001:db8::/54 |
2001:db8:: |
2001:db8:0000:03ff:ffff:ffff:ffff:ffff |
18,889,465,931,478,580,854,784 | 1,024 |
2001:db8::/55 |
2001:db8:: |
2001:db8:0000:01ff:ffff:ffff:ffff:ffff |
9,444,732,965,739,290,427,392 | 512 |
2001:db8::/56 |
2001:db8:: |
2001:db8:0000:00ff:ffff:ffff:ffff:ffff |
4,722,366,482,869,645,213,696 | 256 |
2001:db8::/57 |
2001:db8:: |
2001:db8:0000:007f:ffff:ffff:ffff:ffff |
2,361,183,241,434,822,606,848 | 128 |
2001:db8::/58 |
2001:db8:: |
2001:db8:0000:003f:ffff:ffff:ffff:ffff |
1,180,591,620,717,411,303,424 | 64 |
2001:db8::/59 |
2001:db8:: |
2001:db8:0000:001f:ffff:ffff:ffff:ffff |
590,295,810,358,705,651,712 | 32 |
2001:db8::/60 |
2001:db8:: |
2001:db8:0000:000f:ffff:ffff:ffff:ffff |
295,147,905,179,352,825,856 | 16 |
2001:db8::/61 |
2001:db8:: |
2001:db8:0000:0007:ffff:ffff:ffff:ffff |
147,573,952,589,676,412,928 | 8 |
2001:db8::/62 |
2001:db8:: |
2001:db8:0000:0003:ffff:ffff:ffff:ffff |
73,786,976,294,838,206,464 | 4 |
2001:db8::/63 |
2001:db8:: |
2001:db8:0000:0001:ffff:ffff:ffff:ffff |
36,893,488,147,419,103,232 | 2 |
2001:db8::/64 |
2001:db8:: |
2001:db8:0000:0000:ffff:ffff:ffff:ffff |
18,446,744,073,709,551,616 | 1 |
2001:db8::/65 |
2001:db8:: |
2001:db8:0000:0000:7fff:ffff:ffff:ffff |
9,223,372,036,854,775,808 | - |
2001:db8::/66 |
2001:db8:: |
2001:db8:0000:0000:3fff:ffff:ffff:ffff |
4,611,686,018,427,387,904 | |
2001:db8::/67 |
2001:db8:: |
2001:db8:0000:0000:1fff:ffff:ffff:ffff |
2,305,843,009,213,693,952 | |
2001:db8::/68 |
2001:db8:: |
2001:db8:0000:0000:0fff:ffff:ffff:ffff |
1,152,921,504,606,846,976 | |
2001:db8::/69 |
2001:db8:: |
2001:db8:0000:0000:07ff:ffff:ffff:ffff |
576,460,752,303,423,488 | |
2001:db8::/70 |
2001:db8:: |
2001:db8:0000:0000:03ff:ffff:ffff:ffff |
288,230,376,151,711,744 | |
2001:db8::/71 |
2001:db8:: |
2001:db8:0000:0000:01ff:ffff:ffff:ffff |
144,115,188,075,855,872 | |
2001:db8::/72 |
2001:db8:: |
2001:db8:0000:0000:00ff:ffff:ffff:ffff |
72,057,594,037,927,936 | |
2001:db8::/73 |
2001:db8:: |
2001:db8:0000:0000:007f:ffff:ffff:ffff |
36,028,797,018,963,968 | |
2001:db8::/74 |
2001:db8:: |
2001:db8:0000:0000:003f:ffff:ffff:ffff |
18,014,398,509,481,984 | |
2001:db8::/75 |
2001:db8:: |
2001:db8:0000:0000:001f:ffff:ffff:ffff |
9,007,199,254,740,992 | |
2001:db8::/76 |
2001:db8:: |
2001:db8:0000:0000:000f:ffff:ffff:ffff |
4,503,599,627,370,496 | |
2001:db8::/77 |
2001:db8:: |
2001:db8:0000:0000:0007:ffff:ffff:ffff |
2,251,799,813,685,248 | |
2001:db8::/78 |
2001:db8:: |
2001:db8:0000:0000:0003:ffff:ffff:ffff |
1,125,899,906,842,624 | |
2001:db8::/79 |
2001:db8:: |
2001:db8:0000:0000:0001:ffff:ffff:ffff |
562,949,953,421,312 | |
2001:db8::/80 |
2001:db8:: |
2001:db8:0000:0000:0000:ffff:ffff:ffff |
281,474,976,710,656 | |
2001:db8::/81 |
2001:db8:: |
2001:db8:0000:0000:0000:7fff:ffff:ffff |
140,737,488,355,328 | |
2001:db8::/82 |
2001:db8:: |
2001:db8:0000:0000:0000:3fff:ffff:ffff |
70,368,744,177,664 | |
2001:db8::/83 |
2001:db8:: |
2001:db8:0000:0000:0000:1fff:ffff:ffff |
35,184,372,088,832 | |
2001:db8::/84 |
2001:db8:: |
2001:db8:0000:0000:0000:0fff:ffff:ffff |
17,592,186,044,416 | |
2001:db8::/85 |
2001:db8:: |
2001:db8:0000:0000:0000:07ff:ffff:ffff |
8,796,093,022,208 | |
2001:db8::/86 |
2001:db8:: |
2001:db8:0000:0000:0000:03ff:ffff:ffff |
4,398,046,511,104 | |
2001:db8::/87 |
2001:db8:: |
2001:db8:0000:0000:0000:01ff:ffff:ffff |
2,199,023,255,552 | |
2001:db8::/88 |
2001:db8:: |
2001:db8:0000:0000:0000:00ff:ffff:ffff |
1,099,511,627,776 | |
2001:db8::/89 |
2001:db8:: |
2001:db8:0000:0000:0000:007f:ffff:ffff |
549,755,813,888 | |
2001:db8::/90 |
2001:db8:: |
2001:db8:0000:0000:0000:003f:ffff:ffff |
274,877,906,944 | |
2001:db8::/91 |
2001:db8:: |
2001:db8:0000:0000:0000:001f:ffff:ffff |
137,438,953,472 | |
2001:db8::/92 |
2001:db8:: |
2001:db8:0000:0000:0000:000f:ffff:ffff |
68,719,476,736 | |
2001:db8::/93 |
2001:db8:: |
2001:db8:0000:0000:0000:0007:ffff:ffff |
34,359,738,368 | |
2001:db8::/94 |
2001:db8:: |
2001:db8:0000:0000:0000:0003:ffff:ffff |
17,179,869,184 | |
2001:db8::/95 |
2001:db8:: |
2001:db8:0000:0000:0000:0001:ffff:ffff |
8,589,934,592 | |
2001:db8::/96 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:ffff:ffff |
4,294,967,296 | |
2001:db8::/97 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:7fff:ffff |
2,147,483,648 | |
2001:db8::/98 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:3fff:ffff |
1,073,741,824 | |
2001:db8::/99 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:1fff:ffff |
536,870,912 | |
2001:db8::/100 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0fff:ffff |
268,435,456 | |
2001:db8::/101 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:07ff:ffff |
134,217,728 | |
2001:db8::/102 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:03ff:ffff |
67,108,864 | |
2001:db8::/103 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:01ff:ffff |
33,554,432 | |
2001:db8::/104 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:00ff:ffff |
16,777,216 | |
2001:db8::/105 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:007f:ffff |
8,388,608 | |
2001:db8::/106 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:003f:ffff |
4,194,304 | |
2001:db8::/107 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:001f:ffff |
2,097,152 | |
2001:db8::/108 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:000f:ffff |
1,048,576 | |
2001:db8::/109 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0007:ffff |
524,288 | |
2001:db8::/110 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0003:ffff |
262,144 | |
2001:db8::/111 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0001:ffff |
131,072 | |
2001:db8::/112 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:ffff |
65,536 | |
2001:db8::/113 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:7fff |
32,768 | |
2001:db8::/114 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:3fff |
16,384 | |
2001:db8::/115 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:1fff |
8,192 | |
2001:db8::/116 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:0fff |
4,096 | |
2001:db8::/117 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:07ff |
2,048 | |
2001:db8::/118 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:03ff |
1,024 | |
2001:db8::/119 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:01ff |
512 | |
2001:db8::/120 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:00ff |
256 | |
2001:db8::/121 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:007f |
128 | |
2001:db8::/122 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:003f |
64 | |
2001:db8::/123 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:001f |
32 | |
2001:db8::/124 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:000f |
16 | |
2001:db8::/125 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:0007 |
8 | |
2001:db8::/126 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:0003 |
4 | |
2001:db8::/127 |
2001:db8:: |
2001:db8:0000:0000:0000:0000:0000:0001 |
2 | |
2001:db8::/128 |
2001:db8:: |
2001:db8:: |
1 | - |
Keys
| No organization would ever receive an allocation of this size |
|---|
| Regional Internet Registry/very large organization/ISP allocation sizes |
| ISP/large organization allocation sizes |
| Organization allocation sizes |
| End-user allocation sizes |
| Sub-allocations for same enduser |
| (Single address) |
Tools
About ipv6
https://fsci.pages.dev/p/2022/about-ipv6/