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linux 命令和教程补充
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Linux/command/arping.md
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Linux/command/arping.md
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arping
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===
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通过发送ARP协议报文测试网络
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## 补充说明
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**arping命令** 是用于发送arp请求到一个相邻主机的工具,arping使用arp数据包,通过ping命令检查设备上的硬件地址。能够测试一个ip地址是否是在网络上已经被使用,并能够获取更多设备信息。功能类似于ping。
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### 语法
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```shell
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arping(选项)(参数)
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```
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### 选项
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```shell
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-b:用于发送以太网广播帧(FFFFFFFFFFFF)。arping一开始使用广播地址,在收到响应后就使用unicast地址。
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-q:quiet output不显示任何信息;
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-f:表示在收到第一个响应报文后就退出;
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-w timeout:设定一个超时时间,单位是秒。如果到了指定时间,arping还没到完全收到响应则退出;
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-c count:表示发送指定数量的ARP请求数据包后就停止。如果指定了deadline选项,则arping会等待相同数量的arp响应包,直到超时为止;
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-s source:设定arping发送的arp数据包中的SPA字段的值。如果为空,则按下面处理,如果是DAD模式(冲突地址探测),则设置为0.0.0.0,如果是Unsolicited ARP模式(Gratutious ARP)则设置为目标地址,否则从路由表得出;
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-I interface:设置ping使用的网络接口。
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```
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### 参数
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目的主机:指定发送ARP报文的目的主机。
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### 实例
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```shell
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[root@localhost ~]# arping www.baidu.com
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ARPING 220.181.111.147 from 173.231.43.132 eth0
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Unicast reply from 220.181.111.147 00:D0:03:[bc:48:00] 1.666ms
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Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.677ms
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Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.691ms
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Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.728ms
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Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.626ms
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Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.292ms
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Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.429ms
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Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 2.042ms
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Sent 8 probes (1 broadcast(s))
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Received 8 response(s)
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```
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