子网掩码对照表
日期：2023-5-31
six
网络
浏览：1846次
评论：0条
|
位数
|
掩码
|
可用IP数
|
|
0
|
0.0.0.0
|
4294967294
|
|
1
|
128.0.0.0
|
2147483646
|
|
2
|
192.0.0.0
|
1073741822
|
|
3
|
224.0.0.0
|
536870910
|
|
4
|
240.0.0.0
|
268435454
|
|
5
|
248.0.0.0
|
134217726
|
|
6
|
252.0.0.0
|
67108862
|
|
7
|
254.0.0.0
|
33554430
|
|
8
|
255.0.0.0
|
16777216
|
|
9
|
255.128.0.0
|
8388606
|
|
10
|
255.192.0.0
|
4194302
|
|
11
|
255.224.0.0
|
2097150
|
|
12
|
255.240.0.0
|
1048574
|
|
13
|
255.248.0.0
|
524286
|
|
14
|
255.252.0.0
|
262142
|
|
15
|
255.254.0.0
|
131070
|
|
16
|
255.255.0.0
|
65536
|
|
17
|
255.255.128.0
|
32766
|
|
18
|
255.255.192.0
|
16382
|
|
19
|
255.255.224.0
|
8190
|
|
20
|
255.255.240.0
|
4094
|
|
21
|
255.255.248.0
|
2046
|
|
22
|
255.255.252.0
|
1022
|
|
23
|
255.255.254.0
|
510
|
|
24
|
255.255.255.0
|
254
|
|
25
|
255.255.255.128
|
126
|
|
26
|
255.255.255.192
|
62
|
|
27
|
255.255.255.224
|
30
|
|
28
|
255.255.255.240
|
14
|
|
29
|
255.255.255.248
|
6
|
|
30
|
255.255.255.252
|
2
|
|
31
|
255.255.255.254
|
0
|
|
32
|
255.255.255.255
|
0
|
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