Hey Monks,

I would first like to mention that this question might not be a 100% Perl question, but I feel it is Perl related enough to be posted on this forum. Other's might disagree though.

It's been awhile since I've done any coding, but I'm back at it. I'm writing some code that will run on a secondary linux server and peridoically check the primary linux server to see if it's listening on a particular port. If it's not, then run some commands for further troubleshooting and if all else fails bring the backup server online and act as the primary. All that is kosher, but the problem I'm having is with ARP entries. Is there a way with Perl (or even in Linux) to send out an ARP broadcast to tell all machines to update their arp table's with the entry of the backup server? Right now, it seems to be taking up to 5 minutes for the servers/routers to update their ARP tables. I know you can tweak the config. on the routers to a lower ARP updates, but I'm not sure if our WAN team would go for this since it most likely would put an additional strain on their routers. Ideally an ARP broadcast done via Perl would be my preferred solution.

Also, I already looked into Linux HA: http://linux-ha.org/ but it's not really what I want to do.

Thanks,
Dru
Another satisfied monk.

In reply to Sending ARP Broadcasts via Perl? by dru145

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