Posted on April 18, 2019 6:00 pm
 |  Asked by David
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Curious if there’s a method to cache a negative response to an ARP from a 7280SR2 acting as first hop gateway (w/varp if it matters)? We have public-facing deployments, using large address blocks, that are constantly being scanned by script kiddies and it’s generating tens of thousands of arp requests per second for the not-in-use addresses, over and over. I was hoping to be able to cache the fact that a failed arp occurred, so the switch doesn’t try it again for some period of time, such as a five or ten minutes. Thanks

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