已知IP地址为192.168.56.25在子网掩码为默认值时,计算机的网络地址为什？ 请问：试确定下列IP地址的类别，在子网掩码为默认值时，计算其...

\u5199\u51faIP\u5730\u5740\u4e3a\uff1a192.168.12.43/25\u7684\u7f51\u7edc\u7684\u5b50\u7f51\u63a9\u7801\uff0c\u53ca\u4f7f\u7528\u8be5\u63a9\u7801\u65f6\u7684\u7f51\u7edc\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740\uff1f

\u5206\u4e3a\u4e24\u4e2a\u7f51\u6bb5
\u63a9\u7801\uff1a192.168.12.43/255.255.255.128
\u7f51\u7edc\u5730\u5740192.168.12.0\uff0c\u5e7f\u64ad192.168.12.127
\u7f51\u7edc\u5730\u5740192.168.12.128\uff0c\u5e7f\u64ad192.168.12.255

23.34.10.10 A\u7c7b\u5730\u5740\uff0c\u7f51\u7edc\u5730\u5740\u4e3a\uff1a23.0.0.0
172.23.35.1 B\u7c7b\u5730\u5740\uff0c\u7f51\u7edc\u5730\u5740\u4e3a172.23.0.0
197.36.67.8 C\u7c7b\u5730\u5740\uff0c\u7f51\u7edc\u5730\u5740\u4e3a197.36.67.0

因为IP地址为192.168.56.25是C类ip地址其子网掩码为默认值（255.255.255.0），其网络地址为将ip地址的二进制值与子网掩码的二进制值进行逻辑与运算，其结果就是网络地址，所以192.168.56.25在子网掩码为默认值时，其网络地址为192.168.1.56.0。

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绛旓細/22鏄瓙缃戞帺鐮 255.255.252.0

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