$ sudo arping -b -I eth1 -s 10.1.1.12 10.1.1.19
ARPING 10.1.1.19 from 10.1.1.12 eth1
Unicast reply from 10.1.1.19 [00:16:3E:F2:38:3B] 0.764ms
Unicast reply from 10.1.1.19 [00:16:3E:F2:38:3B] 0.843ms
Unicast reply from 10.1.1.19 [00:16:3E:F2:38:3B] 0.744ms
-c 指定发送ARP REQUEST报文个数.如果再指定-w参数，arping将一直等待ARP REPLY报文，直到超时时间截止
$ sudo arping -c 5 -I eth1 -s 10.1.1.12 10.1.1.19
ARPING 10.1.1.19 from 10.1.1.12 eth1
Unicast reply from 10.1.1.19 [00:16:3E:F2:38:3B] 0.771ms
Unicast reply from 10.1.1.19 [00:16:3E:F2:38:3B] 0.744ms
Unicast reply from 10.1.1.19 [00:16:3E:F2:38:3B] 0.741ms
Unicast reply from 10.1.1.19 [00:16:3E:F2:38:3B] 0.806ms
Unicast reply from 10.1.1.19 [00:16:3E:F2:38:3B] 0.731ms
Sent 5 probes (1 broadcast(s))
Received 5 response(s)
-w deadline
以秒为单位指定超时时间。
-D 重复地址检查模式
$ sudo arping -D 10.1.1.200
ARPING 10.1.1.200 from 0.0.0.0 eth0
Unicast reply from 10.1.1.200 [00:16:3E:F2:37:6B] 0.692ms
Sent 1 probes (1 broadcast(s))
Received 1 response(s)
-I 指定发送ARP REQUEST的网卡
-s 指定源地址
如果使用DAD模式，设置成为0.0.0.0
如果使用Unsolicited ARP mode，设置成为目的地址
其他情况下，根据路由表计算
4.阻止ARP flux
ARP协议用于将IP地址转换成为物理地址，默认情况下，拥有多块网卡的Linux主机会响应该主机的任意网卡上接收到的任意网卡上绑定的IP地址的ARP请求。
假设一台Linux主机拥有两块网卡A和B，IP地址和MAC地址分别是
主机A
IP 10.10.41.102
MAC 08:00:27:4B:63:93
主机B
IP 10.10.41.142
MAC 08:00:27:47:78:55
现在使用arping命令分别向两个IP发送ARP REQUEST
$ sudo arping 10.10.41.142
ARPING 10.10.41.142 from 10.10.41.17 eth0
Unicast reply from 10.10.41.142 [08:00:27:4B:63:93] 1.721ms
Unicast reply from 10.10.41.142 [08:00:27:4B:63:93] 1.774ms
Unicast reply from 10.10.41.142 [08:00:27:4B:63:93] 2.626ms
Unicast reply from 10.10.41.142 [08:00:27:4B:63:93] 1.174ms
Unicast reply from 10.10.41.142 [08:00:27:4B:63:93] 1.164ms
^CSent 5 probes (1 broadcast(s))
Received 5 response(s)
$ sudo arping 10.10.41.102
ARPING 10.10.41.102 from 10.10.41.17 eth0
Unicast reply from 10.10.41.102 [08:00:27:4B:63:93] 1.988ms
Unicast reply from 10.10.41.102 [08:00:27:4B:63:93] 1.266ms
Unicast reply from 10.10.41.102 [08:00:27:4B:63:93] 1.478ms
Unicast reply from 10.10.41.102 [08:00:27:4B:63:93] 1.243ms
^CSent 4 probes (1 broadcast(s))
Received 4 response(s)
可以看到10.10.41.142这个IP返回的不是它该有的MAC地址