Static ARP entries lost

[Boyderama]

Hello everyone,

A week ago I created a services-start script to add several static ARP entries.

It's worked fine until today. I took a look at the ARP list and my static (PERM) entries were not present.

I rebooted the router and they came back as usual.

Is there a scheduled script which clears out all ARP entries including those set manually?

I use this command:

arp -s 192.168.111.120 28:92:4A:38:35:78

What could cause them to be cleared?

I am running Merlin firmware: 378.51 on an RT-N66U.

Many thanks

 

[RMerlin]

Nothing scheduled on the router itself, maybe something else (the kernel?) is expiring those entries.

A workaround would be to reapply those entries every few hours (or every hour), through a cron job.

 

[Boyderama]

Hi RMerlin.

I'm going to check daily to see if/when the ARP entries are removed. That will give me an idea of how often the cron job should run.

Many thanks for the advice.