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> Ping 127.2.88.33 on your console now... you'll see replies.

People's results here might vary depending on their operating system. For me, these pings were returned on a vagrant box running ubuntu, but dropped (not blocked) on the host system.




In OS X you have to add aliases on the loopback interface for 127/8 addresses other than 127.0.0.1 to respond.




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