Proxy arp can be enabled per interface or on all the interface on a linux based system.
To verify proxy arp is enabled or not use below command
In above output “0” means its disabled and “1” means its enabled.
To enable the proxy arp now using below command.
We can enable or disable proxy arp for all the interface by setting “0” or “1” to below file.
If you are working on a router/switch Networking OS which is based on linux kernal you can also change the proxy arp and other setting in the linux prompt.(If you have the access to enter linux prompt)
Apart from proxy ARP settings we can also change other parameters mentioned in below output.
Same can be done for ipv6 “Proxy ND” and other protocols mentioned below:
We need to edit the file “1” or “0” as required.