网络基础
A 类地址1.0.0.0~126.255.255.255 子网掩码255.0.0.0
127.0.0.0 到127.255.255.255 是保留地址,用做循环测试
B 类地址128.0.0.0~191.255.255.255 子网掩码:255.255.0.0;
C 类地址192.0.0.0~223.255.255.255 子网掩码:255.255.255.0;
D 类地址224.0.0.0~239.255.255.254
E 类地址240.0.0.0~255.255.255.255
DHCP(Dynamic Host Configuration Protocal) 动态主机配置协
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