网络基础tcp/ip协议ip学习笔记的相关内容

【网络基础】<>学习笔记1

一．第三章：《IP，网际协议》问题一：如何理解IP的不可靠和无连接。不可靠：指的是不能保证数据报能成功地到达目的地。发生错误时候，丢弃该数据包，发送ICMP消息给信源端。可靠性由上层提供。无连接：IP不维护关于后续数据报的状态信息。体现在，IP数据可以不按顺序发送和...

【网络基础】《TCP/IP详解》学习笔记3

一．第四章：《ARP：地址解析协议》问题一：ARP的作用？ ARP为IP地址到对应的硬件地址提供动态映射。问题二：ftp hostname的过程。 1) DNS解析，将hostname解析成IP地址 2) 请求TCP用得到的IP地址建立连接。 3)&nb...

【网络基础】《TCP/IP详解》学习笔记2

检验和计算：首先,把检验和字段置为0。 45 00 00 2e be 55 00 00 7a 11 00 00<----检验和置为0 de b...

【网络基础】《TCP/IP详解》学习笔记5

一．第六章：《ICMP：Internet控制报文协议》问题一：ICMP的层次和作用。 ICMP一般认为是在三层的。主要传递一些差错报文和其他需要注意的信息。问题二：ICMP报文的分类？ ICMP分为两类，一类是ICMP查询报文，另一类是ICMP差错报文。问题三：什么情况不会导致产生...

【网络基础】《TCP/IP详解》学习笔记4

问题六：ARP代理是怎么回事？路由器回答从一个网络的主机发往另一个网络主机的ARP请求的过程称为ARP代理。应用环境： Proxy ARP应该使用主机没有配置默认网关或没有任何路由策略的网络上。例子：主机A,IP地址是192.168.0.11/24。主机B，IP地址是192.168....

【网络基础】《TCP/IP详解》学习笔记7

一．第12章《广播和多播》问题一：以太网的广播和多播？网卡查看由信道传送过来的帧，指接受目的地址为网卡物理地址或者广播地址，或者对应组播地址的帧。以太网中，组播地址是最高字节的最地位为１。即：０１　００　００　００　００　００广播地址：FF　FF　FF　FF　FF　F...

【网络基础】《TCP/IP详解》学习笔记6

一． 第八章《Traceroute程序》问题一：Traceroute的基本工作原理？ trcertroute建立一个UDP数据包，不断修改TTL值并发送出去，如果收到"超时错"，表示刚刚到达的是路由器，而如果收到的是"端口不可达"错误，表示刚刚到达的就是目的主机。这样路由跟踪完成，程序结...

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