Avoid ARP requests RHEL/CentOS/SL
To avoid send or receive arp request we can use arptables, this tool is very similar to iptables
Install arptables
Avoid send ARP requests to specific host
As iptables in arptables you can use -d flag to determine destination.
And if we want to create a rule for the arp packages we send, we must use OUTPUT chain
Example, to avoid sending request to 192.178.1.1:
Avoid receive ARP requests from specific host
As iptables in arptables you can use -s flag to determine source.
An if we want to create a rule for the arp packages we receive, we must use INPUT chain
Example, to avoid receive request to 192.178.1.1:
To make those changes persistents, we must save configuration:
then start and enable arptables service