The subnet mask is an octet that USES the number 255 to represent the network address portion of the IP address and a zero to identify the host portion of the address.
子网掩码由四个字节组成,它的值为255时表示IP地址中网络地址的部分,值为0时则识别IP地址中表示主机号的部分。
The subnet mask is an octet that USES the number 255 to represent the network address portion of the IP address and a zero to identify the host portion of the address.
子网掩码由四个字节组成,它的值为255时表示IP地址中网络地址的部分,值为0时则识别IP地址中表示主机号的部分。
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