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Interesting blog (http://engineering.clever.com/2014/12/10/when-your-ip-traffic-in-aws-disappears-into-a-black-hole/) pointed out that ARP tables in AWS can be cached and reflect stale MACs from non-current boxes. Added ip neigh check to highlight STALE or REACHABLE states.
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Merged courtesy of #41; this can be closed now. |
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Interesting blog (http://engineering.clever.com/2014/12/10/when-your-ip-traffic-in-aws-disappears-into-a-black-hole/) pointed out that ARP tables in AWS can be cached and reflect stale MACs from non-current boxes. Added ip neigh check to highlight STALE or REACHABLE states.