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daveloyall on Dec 10, 2014 | parent | context | favorite | on: When your IP traffic in AWS disappears into a blac...

I thought there was a mechanism that would allow some sort of failure notification packet to make it back to the origin, so that it would then perform a proper ARP lookup WHO HAS 1.2.3.4? TELL 4.3.2.1!.

Perhaps AWS is blocking some class of packet?

X-Istence on Dec 10, 2014 [–]

The issue is that if it is on-network the only real "failure" notification is a time-out. No ICMP packets, nothing are sent back to indicate you are sending to a non-existent IP address.

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