在我们梦飞科技租用美国服务器/美国vps的时候,买多个IP地址,美国机房总是发一个类似 204.45.116.184/29 的地址给我们,对于不熟悉网络的人来说,真的莫名其妙。到底这些美国IP段中有哪些可用的IP? 网关,子网掩码,广播地址是什么?
更加直观的 可用IP段查 询
http://www.ctohome.com/linux-vps-pack/ip.php
为了方便大家,本文章提供了 可用IP查询,ip段/27 /29 /30 网关,子网掩码,广播地址查询
可用IP查询,IP段对应表
|
|
IP总数 |
子网掩码 |
Amount of a Class C |
|
/30 |
4 |
255.255.255.252 |
1/64 |
|
/29 |
8 |
255.255.255.248 |
1/32 |
|
/28 |
16 |
255.255.255.240 |
1/16 |
|
/27 |
32 |
255.255.255.224 |
1/8 |
|
/26 |
64 |
255.255.255.192 |
1/4 |
|
/24 |
256 |
255.255.255.0 |
1 |
|
/23 |
512 |
255.255.254.0 |
2 |
|
/22 |
1024 |
255.255.252.0 |
4 |
|
/21 |
2048 |
255.255.248.0 |
8 |
|
/20 |
4096 |
255.255.240.0 |
16 |
|
/19 |
8192 |
255.255.224.0 |
32 |
|
/18 |
16384 |
255.255.192.0 |
64 |
|
/17 |
32768 |
255.255.128.0 |
128 |
|
/16 |
65536 |
255.255.0.0 |
256 |
ip段/27 /29 /30 网关,子网掩码,广播地址查询
范例: 要查询204.45.116.184 /29 ,先找到下表的 /29 表格,网关 这一列找到要查询的IP最后一位即.184 ,然后就可以看到可用IP范围(注:第一个IP是Gateway网关地址 )和广播地址了。然后从上面 的表找到 子网掩码即可。
/25 -- 2 Subnets -- 126 Hosts/Subnet
网络地址
Network # |
可用IP
范围 |
广播地址
Broadcast |
|
.0 |
.1-.126 |
.127 |
|
.128 |
.129-.254 |
.255 |
|
/30 -- 64 Subnets -- 2 Hosts/Subnet
网络地址
Network # |
可用IP
范围 |
广播地址
Broadcast |
|
.0 |
.1-.2 |
.3 |
|
.4 |
.5-.6 |
.7 |
|
.8 |
.9-.10 |
.11 |
|
.12 |
.13-.14 |
.15 |
|
.16 |
.17-.18 |
.19 |
|
.20 |
.21-.22 |
.23 |
|
.24 |
.25-.26 |
.27 |
|
.28 |
.29-.30 |
.31 |
|
.32 |
.33-.34 |
.35 |
|
.36 |
.37-.38 |
.39 |
|
.40 |
.41-.42 |
.43 |
|
.44 |
.45-.46 |
.47 |
|
.48 |
.49-.50 |
.51 |
|
.52 |
.53-.54 |
.55 |
|
.56 |
.57-.58 |
.59 |
|
.60 |
.61-.62 |
.63 |
|
.64 |
.65-.66 |
.67 |
|
.68 |
.69-.70 |
.71 |
|
.72 |
.73-.74 |
.75 |
|
.76 |
.77-.78 |
.79 |
|
.80 |
.81-.82 |
.83 |
|
.84 |
.85-.86 |
.87 |
|
.88 |
.89-.90 |
.91 |
|
.92 |
.93-.94 |
.95 |
|
.96 |
.97-.98 |
.99 |
|
.100 |
.101-.102 |
.103 |
|
.104 |
.105-.106 |
.107 |
|
.108 |
.109-.110 |
.111 |
|
.112 |
.113-.114 |
.115 |
|
.116 |
.117-.118 |
.119 |
|
.120 |
.121-.122 |
.123 |
|
.124 |
.125-.126 |
.127 |
|
.128 |
.129-.130 |
.131 |
|
.132 |
.133-.134 |
.135 |
|
.136 |
.137-.138 |
.139 |
|
.140 |
.141-.142 |
.143 |
|
.144 |
.145-.146 |
.147 |
|
.148 |
.149-.150 |
.151 |
|
.152 |
.153-.154 |
.155 |
|
.156 |
.157-.158 |
.159 |
|
.160 |
.161-.162 |
.163 |
|
.164 |
.165-.166 |
.167 |
|
.168 |
.169-.170 |
.171 |
|
.172 |
.173-.174 |
.175 |
|
.176 |
.177-.178 |
.179 |
|
.180 |
.181-.182 |
.183 |
|
.184 |
.185-.186 |
.187 |
|
.188 |
.189-.190 |
.191 |
|
.192 |
.193-.194 |
.195 |
|
.196 |
.197-.198 |
.199 |
|
.200 |
.201-.202 |
.203 |
|
.204 |
.205-.206 |
.207 |
|
.208 |
.209-.210 |
.211 |
|
.212 |
.213-.214 |
.215 |
|
.216 |
.217-.218 |
.219 |
|
.220 |
.221-.222 |
.223 |
|
.224 |
.225-.226 |
.227 |
|
.228 |
.229-.230 |
.231 |
|
.232 |
.233-.234 |
.235 |
|
.236 |
.237-.238 |
.239 |
|
.240 |
.241-.242 |
.243 |
|
.244 |
.245-.246 |
.247 |
|
.248 |
.249-.250 |
.251 |
|
.252 |
.253-.254 |
.255 |
|
/26 -- 4 Subnets -- 62 Hosts/Subnet
网络地址
Network # |
可用IP
范围 |
广播地址
Broadcast |
|
.0 |
.1-.62 |
.63 |
|
.64 |
.65-.126 |
.127 |
|
.128 |
.129-.190 |
.191 |
|
.192 |
.193-.254 |
.255 |
|
/27 -- 8 Subnets -- 30 Hosts/Subnet
网络地址
Network # |
可用IP
范围 |
广播地址
Broadcast |
|
.0 |
.1-.30 |
.31 |
|
.32 |
.33-.62 |
.63 |
|
.64 |
.65-.94 |
.95 |
|
.96 |
.97-.126 |
.127 |
|
.128 |
.129-.158 |
.159 |
|
.160 |
.161-.190 |
.191 |
|
.192 |
.193-.222 |
.223 |
|
.224 |
.225-.254 |
.255 |
|
/28 -- 16 Subnets -- 14 Hosts/Subnet
网络地址
Network # |
可用IP
范围 |
广播地址
Broadcast |
|
.0 |
.1-.14 |
.15 |
|
.16 |
.17-.30 |
.31 |
|
.32 |
.33-.46 |
.47 |
|
.48 |
.49-.62 |
.63 |
|
.64 |
.65-.78 |
.79 |
|
.80 |
.81-.94 |
.95 |
|
.96 |
.97-.110 |
.111 |
|
.112 |
.113-.126 |
.127 |
|
.128 |
.129-.142 |
.143 |
|
.144 |
.145-.158 |
.159 |
|
.160 |
.161-.174 |
.175 |
|
.176 |
.177-.190 |
.191 |
|
.192 |
.193-.206 |
.207 |
|
.208 |
.209-.222 |
.223 |
|
.224 |
.225-.238 |
.239 |
|
.240 |
.241-.254 |
.255 |
|
/29 -- 32 Subnets -- 6 Hosts/Subnet
网络地址
Network # |
可用IP
范围 |
广播地址
Broadcast |
|
.0 |
.1-.6 |
.7 |
|
.8 |
.9-.14 |
.15 |
|
.16 |
.17-.22 |
.23 |
|
.24 |
.25-.30 |
.31 |
|
.32 |
.33-.38 |
.39 |
|
.40 |
.41-.46 |
.47 |
|
.48 |
.49-.54 |
.55 |
|
.56 |
.57-.62 |
.63 |
|
.64 |
.65-.70 |
.71 |
|
.72 |
.73-.78 |
.79 |
|
.80 |
.81-.86 |
.87 |
|
.88 |
.89-.94 |
.95 |
|
.96 |
.97-.102 |
.103 |
|
.104 |
.105-.110 |
.111 |
|
.112 |
.113-.118 |
.119 |
|
.120 |
.121-.126 |
.127 |
|
.128 |
.129-.134 |
.135 |
|
.136 |
.137-.142 |
.143 |
|
.144 |
.145-.150 |
.151 |
|
.152 |
.153-.158 |
.159 |
|
.160 |
.161-.166 |
.167 |
|
.168 |
.169-.174 |
.175 |
|
.176 |
.177-.182 |
.183 |
|
.184 |
.185-.190 |
.191 |
|
.192 |
.193-.198 |
.199 |
|
.200 |
.201-.206 |
.207 |
|
.208 |
.209-.214 |
.215 |
|
.216 |
.217-.222 |
.223 |
|
.224 |
.225-.230 |
.231 |
|
.232 |
.233-.238 |
.239 |
|
.240 |
.241-.246 |
.247 |
|
.248 |
.249-.254 |
.255 |
|