Mac can be arpinged but not pinged.

Why does Mac OS X and Linux do not ping each other on a local Ethernet Network?

With a simple Netgear four ports switch-hub, when connecting via RJ45 cables osx boxes and Linux boxes and seting static ip addresses, one is able to arping but not ping to/fro different operational systems. Why is that, please?

I can see routes to the Linux boxes on osx netstat -r. But pinga from osx to linux timesout. Same goes for linux pinging OSX. Arp tables are correct and were updated automatically not manually.

In my case, no, OS X firewall is NOT in stealth mode and it’s not even running. I have turned it off to do the experiment.

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