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ARP 报文格式

ARP 报文格式. 硬件类型. 协议类型. 硬件地址长度. 协议长度. 操作. 发送方硬件地址 ( 八位组 0-3). 发送方硬件地址 ( 八位组 4-5). 发送方 IP 地址 ( 八位组 0-1). 发送方 IP 地址 ( 八位组 2-3). 目标硬件地址 ( 八位组 0-1). 目标硬件地址 ( 八位组 2-5). 目标 IP 地址 ( 八位组 0-3). ARP 报文格式. 硬件类型指明发送方想知道的硬件接口类型。对以太网,值为 1 ; 协议类型指明发送方提供的高层协议地址类型。对 TCP/IP 互联网,采用 IP 地址,值为十六机制的 0806 ;

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ARP 报文格式

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  1. ARP报文格式

  2. 硬件类型 协议类型 硬件地址长度 协议长度 操作 发送方硬件地址(八位组0-3) 发送方硬件地址(八位组4-5) 发送方IP地址(八位组0-1) 发送方IP地址(八位组2-3) 目标硬件地址(八位组0-1) 目标硬件地址(八位组2-5) 目标IP地址(八位组0-3) ARP报文格式 • 硬件类型指明发送方想知道的硬件接口类型。对以太网,值为1; • 协议类型指明发送方提供的高层协议地址类型。对TCP/IP互联网,采用IP地址,值为十六机制的0806; • 操作指明ARP的操作类型,ARP请求为1,ARP响应为2,RARP请求为3,RARP响应为4。RARP在后面的章节中介绍。 • 在以太网环境下的ARP报文,硬件地址为48位(6个八位组)。

  3. 本节结束

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