求解释啊:IP==网络地址+主机地址或者说==网络地址+子网地址+主机地址 具体说说什么是网络,子网 主机地

地址,为什么这样弄啊,求高手解释啊,感激不尽啊
2025-03-05 12:09:23
推荐回答(3个)
回答1:

这个好复杂滴。。。
呵呵
举例子简单说 192.168.1.X这个网段 192.168.1就是你所说的网络地址了
而X就是主机地址 从1-255嘛 都是主机地址
子网的话就要考虑子网掩码了
最基本最普通的192.168.1.X的子网掩码是255.255.255.0
而如果此时使用255.255.255.128作为子网掩码
按你的说法来看 192.168.1. 还是网络地址 而X部分0和128都是子网位
这里又涉及到了十进制二进制的算法
不是几句话能说明白的
这里是吧X变成二进制 00000000和10000000 这2个就是二进制的表示 分别是0和128
这2个都是子网 这个子网掩码下就能分2个子网
这是在大型网络下电脑数量很多 而且需要分部门等类似的情况下的网络划分方法
你要详细了解的话 需要从十进制 二进制表示IP开始学起
然后学习子网划分 子网就是这个网段能分几个子网 子网掩码为128就能分2个
分别是00000000和10000000
192能分4个
分别是00000000 01000000 10000000 11000000
128和192是怎么来的
10000000就是128 11000000就是192.。。。。
以此类推
我感觉我说的有点乱。。这个本来就不是很好上手的概念
我建议去百度文库里找资料从基础看起

回答2:

IP和子网掩码是一起使用的,掩码能更具IP判断该IP所在的网段。你所说的网络地址就是网段。
对主机来说,同一网段的IP可以直接通信,不经过路由。
不同网段的IP必须经过路由才能通信。

网络地址对于路由来说,简化了路由表条目,路由不可能把每个IP地址都加入进条目,这样会大大增加路由的负担。

回答3:

没太听明白你说的什么,网络地址有可能是指公网IP地址,主机地址有可能是指局域网IP地址或是MAC地址,子网地址应该是指子网掩码,你是在哪看到这些的,能说的再具体点不?

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