moneyslow.com

network网络

netmask

—

from

moneyslow
of 

255.0.0.0   /8 (A类默认)
255.255.0.0  /16 (B类默认)
255.255.255.0  /24 (C类默认)
255.255.255.128  /25
255.255.255.192  /26
255.255.255.224  /27
255.255.255.240  /28
255.255.255.248  /29
255.255.255.252  /30
255.255.255.255  /32 (主机地址)