IP地址是一个网卡在网络世界的通讯地址,相当于我们现实世界中的门牌号。
例如:103.53.125.1这个IP(IPV4)地址它被分为四个部分,每个部分分为6bit,所以一个IP地址总共有32位。
而我们今天的IP103.53.215.1就属于B类IP地址
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在目前网络的设计中,IP地址主要由A、B、C三类区分,前面一部分是网络后,后面的则是主机号.
A类IP地址 一个A类IP地址由1字节的网络地址和3字节主机地址组成,网络地址的最高位必须是“0”, 地址范围1.0.0.1-126.255.255.254可用的A类网络有126个,每个网络能容纳1亿多个主机。
2.B类IP地址 一个B类IP地址由2个字节的网络地址和2个字节的主机地址组成,网络地址的最高位必须是“10”,地址范围128.0.0.1-191.255.255.254。可用的B类网络有16382个,每个网络能容纳6万多个主机 。
3.C类IP地址 一个C类IP地址由3字节的网络地址和1字节的主机地址组成,网络地址的最高位必须是“110”。范围192.0.0.1-223.255.255.254C类网络可达209万余个,每个网络能容纳254个主机。
4.D类地址用于多点广播。 D类IP地址第一个字节以“lll0”开始,它是一个专门保留的地址。它并不指向特定的网络,目前这一类地址被用在多点广播中。多点广播地址用来一次寻址一组计算机,它标识共享同一协议的一组计算机。 地址范围224.0.0.1-239.255.255.2545.E类IP地址 以“llll0”开始,为将来使用保留。 全零(“0.0.0.0”)地址对应于当前主机。全“1”的IP地址(“255.255.255.255”)是当前子网的广播地址。
例如驰网江苏扬州高防BGP线路103.53.125.xxx IP段用于网络建站(发布站、大访问量的网站)、游戏(steam、端游、手游、csgo、恐龙岛、方舟、传奇等大型游戏业务)、大带宽视频、直播业务如下
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