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informatica:arp [2015/06/19 09:46] (current)
jose created
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 +http://​linux-audit.com/​how-to-clear-the-arp-cache-on-linux/​
  
 +<​code>​
 +root@ubuntu:​~#​ arp -d 192.168.1.1
 +
 +After deleting, have a look with the arp utility again to see the new list:
 +
 +root@ubuntu:​~#​ arp -n
 +Address ​                 HWtype ​ HWaddress ​          Flags Mask            Iface
 +192.168.1.1 ​                     (incomplete) ​                             eth0
 +192.168.1.2 ​             ether   ​00:​02:​9b:​a2:​d3:​f3 ​  ​C ​                    eth0
 +192.168.1.3 ​             ether   ​00:​02:​9b:​d9:​d1:​a2 ​  ​C ​                    eth0
 +
 +Clearing cache with ip
 +
 +Newer Linux distributions have the ip utility, which has a more advanced way to clear out the full ARP cache
 +
 +root@ubuntu:​~#​ ip -s -s neigh flush all
 +192.168.1.1 dev eth0 lladdr 00:​a1:​04:​c6:​10:​14 used 757/757/28 probes 6 STALE
 +192.168.1.2 dev eth0 lladdr 00:​02:​9b:​a2:​d3:​f3 used 2555/​719/​659 probes 6 STALE
 +192.168.1.3 dev eth0 lladdr 00:​02:​9b:​d9:​d1:​a2 ref 1 used 0/0/0 probes 6 DELAY
 +
 +*** Round 1, deleting 3 entries ***
 +*** Flush is complete after 1 round ***
 +
 +</​code>​
informatica/arp.txt ยท Last modified: 2015/06/19 09:46 by jose