How to empty all ARP caches in a Linux system

Empty ARP cache (empty ARP table) method under Linux system

Command Red font mark

System initial ARP Environment

[Root@esx ~]# Arp-n

Address Hwtype hwaddress Flags Mask iface

192.168.1.175 ether 00:24:1d:97:b6:7f C vswif0

192.168.1.120 ether 00:1f:c6:3a:dc:81 C vswif0

192.168.1.51 (incomplete) vswif0

Perform clear all ARP cache commands

[Root@esx ~]# Arp-n|awk '/^[1-9]/{print ' arp-d ' $} ' |sh-x

+ arp-d 192.168.1.175

+ arp-d 192.168.1.120

+ arp-d 192.168.1.51

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Native ARP cache information after the command is executed

[Root@esx ~]# Arp-n

Address Hwtype hwaddress Flags Mask iface

192.168.1.175 (incomplete) vswif0

192.168.1.120 (incomplete) vswif0

192.168.1.51 (incomplete) vswif0