保留IP、回环IP和私有IP

保留IP、回环IP和私有IP

首地址

尾地址

所属IP分类

无分类掩码

示意

0.0.0.0

0.255.255.255

Class A network 0.x.x.x

0/8

保留

10.0.0.0

10.255.255.255

Class A network 10.x.x.x

10/8

A类私有地址

127.0.0.0

127.255.255.255

Class A network 127.x.x.x

127/8

回环IP

128.0.0.0

128.0.255.255

Class B network 128.0.x.x

128.0/16

保留

169.254.0.0

169.254.255.255

Class B network 169.254.x.x

169.254/16

用于DHCP自动分配B类私有IP地址

172.16.0.0

172.31.255.255

从 172.16.x.x 到 172.31.x.x共16共B类网络

172.16/12

B类私有地址

191.255.0.0

191.255.255.255

Class B network 191.255.x.x

191.255/16

保留

192.0.0.0

192.0.0.255

Class C network 192.0.0.x

192.0.0/24

保留.

192.168.0.0

192.168.255.255

256 个C类网络

192.168/16

C类私有IP

223.255.255.0

223.255.255.255

Class C network 223.255.255.x

223.255.255/24

保留.