Help:段封禁/IPv6
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對於段封鎖的主頁，且是針對IPv4，請參閱Help:段封禁。 如同IPv4一樣，IPv6的段封鎖由$wgBlockCIDRLimit限制，預設最大允許的段封鎖的規模為/19。
技術性說明
IPv6位址的長度，每一個都是128位元。 因為IPv6位址中的每個位數有16種不同的十六進位值（從0開始到代表15的F），每個位數表示了4位元（半字節）的值，總共有32個位數。 如同IPv4，CIDR表示法以共同位元的前綴來表示範圍。 例如：2001:db8::/32表示該範圍的前32位元設定為二進制的數字00100000000000010000110110111000。 也如同IPv4，MediaWiki使用CIDR表示法來實作IPv6段封鎖。
附帶損害
要評估IPv6段封鎖的附帶損害，最佳指引是去查看WHOIS和該段的實際活躍總數。 MediaWiki支持以Special:Contributions查询某个段内的贡献，例如：Special:Contributions/2001:db8::/32（注意，后一个段不会回傳任何的编辑）。
在评估附帶損害时，了解IPv6对最终用户的地址分配情况是很重要的。 需要知道的最重要的实情是，給终端用户连接的单个或多个/64的子网是IPv6的实际要求。 這意味的是，IPv6連線將分配給他們至少264個位址，約有1800億個億的數量；有時它們可以分配到更多的位址。 IPv6需要/64子網路劃分的原因是，任何偏離此子網路的行為都會破壞大量的IPv6協議，而未來的發展也需要它。[1] 唯一會超過/64的子網路劃分的例外，是某些連線不需要許多IPv6功能，例如用於點對點路由器間連結的/126子網路。[1] 但這與IPv6的範圍封鎖無關，因為沒有終端用戶會擁有此類的位址。
因此，在許多方面，IPv6 /64範圍封鎖是類似於單一IPv4位址的封鎖，因為/64子網路是連接的基準，儘管有時終端使用者的分配會包括多個/64子網路。 因此一般而言，建議使用IPv6 /64範圍封鎖，因為單一IPv6位址的封鎖可以被技術知識少量的使用者輕鬆繞過，並且通常其附帶損害的風險很低。 但請注意，與IPv4類似，在其中單一靜態IPv4位址可能為家用或機構提供服務，某個靜態的IPv6 /64的範圍也可能為家用或機構提供服務，因此多個使用者可能會受到 /64 範圍封鎖的影響。
對此的一個例外是行動寬頻存取；這些IP是在一定範圍內動態分配的，阻擋這些IP不太可能會成功，因為它們很容易被繞過並有冒著附帶損害的風險；這適用於所有類型的封鎖，無論它們是單一位址或範圍的IPv4封鎖或IPv6封鎖。 可以使用WHOIS的服務來檢查行動寬頻的位址。 請注意，IPv6 /64的範圍「不太可能」是動態，相反，它們可能是靜態的，並且通常不會為最終用戶改變。 這是由於可用的IPv6位址數量很龐大，意味著不需要動態分配；這降低了附帶損害的風險。
如何计算某個IPv6的CIDR段
Although similar principles also apply to IPv4, the fact that hexadecimal digits correspond to exactly one nibble (4 bits) each simplifies the calculation somewhat.
- Find the common prefix – that is, the string of digits shared by all of your addresses.
- Expand the common prefix completely (including redundant zeros), and multiply the total number of digits by 4 - that's the size of your common prefix.
- Use the table below, and add the specified number to your prefix size (this is your CIDR suffix, the number of bits common to all addresses in the range). Append the specified digit to the common prefix you found in step 1. Complete the group of four digits with zeros if necessary.
- The CIDR is then [common prefix (with additional digit as specified by table below, followed by zeros as necessary to keep the group of four digits complete)]/[common prefix length (plus 1,2, or 3 as specified by the table below)].
前缀修篩表
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 |
IP范围表
圖例
| 沒有任何組織能夠獲得如此規模的分配 |
| 區域互聯網註冊管理機構或非常龐大的組織或網際網路服務提供者(ISP)可分配的規模 |
| ISP或大型組織可分配的規模 |
| 組織可分配的規模 |
| 最終用戶分配的規模 |
| 相同用戶的次分配 |
| (（单一地址）) |
範例IP地址范围
顏色的編碼是大致估計的、會有重疊。
| 无类别域间路由(CIDR) | IP段起点 | IP段终点 | 总IP地址数量 | 总计/64子网 |
|---|---|---|---|---|
::/0
|
::
|
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
340,282,366,920,938,500,000,000,000,000,000,000,000 | 18,446,744,073,709,552,000 |
::/1
|
::
|
7fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
170,141,183,460,469,230,000,000,000,000,000,000,000 | 9,223,372,036,854,776,000 |
::/2
|
::
|
3fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
85,070,591,730,234,620,000,000,000,000,000,000,000 | 4,611,686,018,427,388,000 |
2000::/3
|
2000::
|
3fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
42,535,295,865,117,310,000,000,000,000,000,000,000 | 2,305,843,009,213,693,400 |
2000::/4
|
2000::
|
2fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
21,267,647,932,558,654,000,000,000,000,000,000,000 | 1,152,921,504,606,847,000 |
2000::/5
|
2000::
|
27ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
10,633,823,966,279,327,000,000,000,000,000,000,000 | 576,460,752,303,423,500 |
2000::/6
|
2000::
|
23ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
5,316,911,983,139,664,000,000,000,000,000,000,000 | 288,230,376,151,711,740 |
2000::/7
|
2000::
|
21ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
2,658,455,991,569,832,000,000,000,000,000,000,000 | 144,115,188,075,855,870 |
2000::/8
|
2000::
|
20ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
1,329,227,995,784,916,000,000,000,000,000,000,000 | 72,057,594,037,927,940 |
2000::/9
|
2000::
|
207f:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
664,613,997,892,458,000,000,000,000,000,000,000 | 36,028,797,018,963,970 |
2000::/10
|
2000::
|
203f:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
332,306,998,946,229,000,000,000,000,000,000,000 | 18,014,398,509,481,984 |
2000::/11
|
2000::
|
201f:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
166,153,499,473,114,500,000,000,000,000,000,000 | 9,007,199,254,740,992 |
2000::/12
|
2000::
|
200f:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
83,076,749,736,557,240,000,000,000,000,000,000 | 4,503,599,627,370,496 |
2000::/13
|
2000::
|
2007:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
41,538,374,868,278,620,000,000,000,000,000,000 | 2,251,799,813,685,248 |
2000::/14
|
2000::
|
2003:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
20,769,187,434,139,310,000,000,000,000,000,000 | 1,125,899,906,842,624 |
2000::/15
|
2000::
|
2001:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
10,384,593,717,069,655,000,000,000,000,000,000 | 562,949,953,421,312 |
2001::/16
|
2001::
|
2001:ffff:ffff:ffff:ffff:ffff:ffff:ffff
|
5,192,296,858,534,828,000,000,000,000,000,000 | 281,474,976,710,656 |
2001::/17
|
2001::
|
2001:7fff:ffff:ffff:ffff:ffff:ffff:ffff
|
2,596,148,429,267,414,000,000,000,000,000,000 | 140,737,488,355,328 |
2001::/18
|
2001::
|
2001:3fff:ffff:ffff:ffff:ffff:ffff:ffff
|
1,298,074,214,633,707,000,000,000,000,000,000 | 70,368,744,177,664 |
2001::/19
|
2001::
|
2001:1fff:ffff:ffff:ffff:ffff:ffff:ffff
|
649,037,107,316,853,500,000,000,000,000,000 | 35,184,372,088,832 |
2001::/20
|
2001::
|
2001:0fff:ffff:ffff:ffff:ffff:ffff:ffff
|
324,518,553,658,426,730,000,000,000,000,000 | 17,592,186,044,416 |
2001:800::/21
|
2001:800::
|
2001:0fff:ffff:ffff:ffff:ffff:ffff:ffff
|
162,259,276,829,213,360,000,000,000,000,000 | 8,796,093,022,208 |
2001:c00::/22
|
2001:c00::
|
2001:0fff:ffff:ffff:ffff:ffff:ffff:ffff
|
81,129,638,414,606,680,000,000,000,000,000 | 4,398,046,511,104 |
2001:c00::/23
|
2001:c00::
|
2001:0dff:ffff:ffff:ffff:ffff:ffff:ffff
|
40,564,819,207,303,340,000,000,000,000,000 | 2,199,023,255,552 |
2001:d00::/24
|
2001:d00::
|
2001:0dff:ffff:ffff:ffff:ffff:ffff:ffff
|
20,282,409,603,651,670,000,000,000,000,000 | 1,099,511,627,776 |
2001:d80::/25
|
2001:d80::
|
2001:0dff:ffff:ffff:ffff:ffff:ffff:ffff
|
10,141,204,801,825,835,000,000,000,000,000 | 549,755,813,888 |
2001:d80::/26
|
2001:d80::
|
2001:0dbf:ffff:ffff:ffff:ffff:ffff:ffff
|
5,070,602,400,912,918,000,000,000,000,000 | 274,877,906,944 |
2001:da0::/27
|
2001:da0::
|
2001:0dbf:ffff:ffff:ffff:ffff:ffff:ffff
|
2,535,301,200,456,459,000,000,000,000,000 | 137,438,953,472 |
2001:db0::/28
|
2001:db0::
|
2001:0dbf:ffff:ffff:ffff:ffff:ffff:ffff
|
1,267,650,600,228,229,400,000,000,000,000 | 68,719,476,736 |
2001:db8::/29
|
2001:db8::
|
2001:0dbf:ffff:ffff:ffff:ffff:ffff:ffff
|
633,825,300,114,114,700,000,000,000,000 | 34,359,738,368 |
2001:db8::/30
|
2001:db8::
|
2001:0dbb:ffff:ffff:ffff:ffff:ffff:ffff
|
316,912,650,057,057,350,000,000,000,000 | 17,179,869,184 |
2001:db8::/31
|
2001:db8::
|
2001:0db9:ffff:ffff:ffff:ffff:ffff:ffff
|
158,456,325,028,528,680,000,000,000,000 | 8,589,934,592 |
2001:db8::/32
|
2001:db8::
|
2001:db8:ffff:ffff:ffff:ffff:ffff:ffff
|
79,228,162,514,264,340,000,000,000,000 | 4,294,967,296 |
2001:db8::/33
|
2001:db8::
|
2001:db8:7fff:ffff:ffff:ffff:ffff:ffff
|
39,614,081,257,132,170,000,000,000,000 | 2,147,483,648 |
2001:db8::/34
|
2001:db8::
|
2001:db8:3fff:ffff:ffff:ffff:ffff:ffff
|
19,807,040,628,566,084,000,000,000,000 | 1,073,741,824 |
2001:db8::/35
|
2001:db8::
|
2001:db8:1fff:ffff:ffff:ffff:ffff:ffff
|
9,903,520,314,283,042,000,000,000,000 | 536,870,912 |
2001:db8::/36
|
2001:db8::
|
2001:db8:0fff:ffff:ffff:ffff:ffff:ffff
|
4,951,760,157,141,521,000,000,000,000 | 268,435,456 |
2001:db8::/37
|
2001:db8::
|
2001:db8:07ff:ffff:ffff:ffff:ffff:ffff
|
2,475,880,078,570,760,500,000,000,000 | 134,217,728 |
2001:db8::/38
|
2001:db8::
|
2001:db8:03ff:ffff:ffff:ffff:ffff:ffff
|
1,237,940,039,285,380,300,000,000,000 | 67,108,864 |
2001:db8::/39
|
2001:db8::
|
2001:db8:01ff:ffff:ffff:ffff:ffff:ffff
|
618,970,019,642,690,200,000,000,000 | 33,554,432 |
2001:db8::/40
|
2001:db8::
|
2001:db8:00ff:ffff:ffff:ffff:ffff:ffff
|
309,485,009,821,345,100,000,000,000 | 16,777,216 |
2001:db8::/41
|
2001:db8::
|
2001:db8:007f:ffff:ffff:ffff:ffff:ffff
|
154,742,504,910,672,530,000,000,000 | 8,388,608 |
2001:db8::/42
|
2001:db8::
|
2001:db8:003f:ffff:ffff:ffff:ffff:ffff
|
77,371,252,455,336,270,000,000,000 | 4,194,304 |
2001:db8::/43
|
2001:db8::
|
2001:db8:001f:ffff:ffff:ffff:ffff:ffff
|
38,685,626,227,668,134,000,000,000 | 2,097,152 |
2001:db8::/44
|
2001:db8::
|
2001:db8:000f:ffff:ffff:ffff:ffff:ffff
|
19,342,813,113,834,067,000,000,000 | 1,048,576 |
2001:db8::/45
|
2001:db8::
|
2001:db8:0007:ffff:ffff:ffff:ffff:ffff
|
9,671,406,556,917,033,000,000,000 | 524,288 |
2001:db8::/46
|
2001:db8::
|
2001:db8:0003:ffff:ffff:ffff:ffff:ffff
|
4,835,703,278,458,517,000,000,000 | 262,144 |
2001:db8::/47
|
2001:db8::
|
2001:db8:0001:ffff:ffff:ffff:ffff:ffff
|
2,417,851,639,229,258,300,000,000 | 131,072 |
2001:db8::/48
|
2001:db8::
|
2001:db8:0000:ffff:ffff:ffff:ffff:ffff
|
1,208,925,819,614,629,200,000,000 | 65,536 |
2001:db8::/49
|
2001:db8::
|
2001:db8:0000:7fff:ffff:ffff:ffff:ffff
|
604,462,909,807,314,600,000,000 | 32,768 |
2001:db8::/50
|
2001:db8::
|
2001:db8:0000:3fff:ffff:ffff:ffff:ffff
|
302,231,454,903,657,300,000,000 | 16,384 |
2001:db8::/51
|
2001:db8::
|
2001:db8:0000:1fff:ffff:ffff:ffff:ffff
|
151,115,727,451,828,650,000,000 | 8,192 |
2001:db8::/52
|
2001:db8::
|
2001:db8:0000:0fff:ffff:ffff:ffff:ffff
|
75,557,863,725,914,320,000,000 | 4,096 |
2001:db8::/53
|
2001:db8::
|
2001:db8:0000:07ff:ffff:ffff:ffff:ffff
|
37,778,931,862,957,160,000,000 | 2,048 |
2001:db8::/54
|
2001:db8::
|
2001:db8:0000:03ff:ffff:ffff:ffff:ffff
|
18,889,465,931,478,580,000,000 | 1,024 |
2001:db8::/55
|
2001:db8::
|
2001:db8:0000:01ff:ffff:ffff:ffff:ffff
|
9,444,732,965,739,290,000,000 | 512 |
2001:db8::/56
|
2001:db8::
|
2001:db8:0000:00ff:ffff:ffff:ffff:ffff
|
4,722,366,482,869,645,000,000 | 256 |
2001:db8::/57
|
2001:db8::
|
2001:db8:0000:007f:ffff:ffff:ffff:ffff
|
2,361,183,241,434,822,600,000 | 128 |
2001:db8::/58
|
2001:db8::
|
2001:db8:0000:003f:ffff:ffff:ffff:ffff
|
1,180,591,620,717,411,300,000 | 64 |
2001:db8::/59
|
2001:db8::
|
2001:db8:0000:001f:ffff:ffff:ffff:ffff
|
590,295,810,358,705,700,000 | 32 |
2001:db8::/60
|
2001:db8::
|
2001:db8:0000:000f:ffff:ffff:ffff:ffff
|
295,147,905,179,352,830,000 | 16 |
2001:db8::/61
|
2001:db8::
|
2001:db8:0000:0007:ffff:ffff:ffff:ffff
|
147,573,952,589,676,410,000 | 8 |
2001:db8::/62
|
2001:db8::
|
2001:db8:0000:0003:ffff:ffff:ffff:ffff
|
73,786,976,294,838,210,000 | 4 |
2001:db8::/63
|
2001:db8::
|
2001:db8:0000:0001:ffff:ffff:ffff:ffff
|
36,893,488,147,419,103,000 | 2 |
2001:db8::/64
|
2001:db8::
|
2001:db8:0000:0000:ffff:ffff:ffff:ffff
|
18,446,744,073,709,552,000 | 1 |
2001:db8::/65
|
2001:db8::
|
2001:db8:0000:0000:7fff:ffff:ffff:ffff
|
9,223,372,036,854,776,000 | - |
2001:db8::/66
|
2001:db8::
|
2001:db8:0000:0000:3fff:ffff:ffff:ffff
|
4,611,686,018,427,388,000 | |
2001:db8::/67
|
2001:db8::
|
2001:db8:0000:0000:1fff:ffff:ffff:ffff
|
2,305,843,009,213,694,000 | |
2001:db8::/68
|
2001:db8::
|
2001:db8:0000:0000:0fff:ffff:ffff:ffff
|
1,152,921,504,606,847,000 | |
2001:db8::/69
|
2001:db8::
|
2001:db8:0000:0000:07ff:ffff:ffff:ffff
|
576,460,752,303,423,500 | |
2001:db8::/70
|
2001:db8::
|
2001:db8:0000:0000:03ff:ffff:ffff:ffff
|
288,230,376,151,711,740 | |
2001:db8::/71
|
2001:db8::
|
2001:db8:0000:0000:01ff:ffff:ffff:ffff
|
144,115,188,075,855,870 | |
2001:db8::/72
|
2001:db8::
|
2001:db8:0000:0000:00ff:ffff:ffff:ffff
|
72,057,594,037,927,940 | |
2001:db8::/73
|
2001:db8::
|
2001:db8:0000:0000:007f:ffff:ffff:ffff
|
36,028,797,018,963,970 | |
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 | - |
工具
- ip-range-calc – 计算包含给定IP地址列表的最小CIDR块
- 範圍計算工具 – NativeForeigner的IP範圍計算器
- IP子網路劃分和CIDR計算器
- 模板:IP range calculator
- IPv6子網路計算器
參考資料
- ↑ 1.0 1.1 IPv6 單播位址分配注意事項「使用/64以外的子網路前綴長度將會破壞 IPv6 的許多功能，包括鄰居發現 (ND)、安全鄰居發現 (SEND) [RFC3971]、隱私擴充工能[RFC4941]、部份的移动IPv6 [RFC4866]、帶有嵌入式RP的協定獨立多播--稀疏模式(PIM-SM)[RFC3956]、和Site Multihoming by IPv6 Intermediation [SHIM6]等等。 目前有許多其他正在開發或正被提議的功能也同樣依賴於/64的子網路前綴。」「然而，一些網路管理員使用比/64更長的前綴來連接路由器，通常只是兩個點對點連結上的路由器。」