I did figure out, that I was logged into control panel with the wrong 
credentials, so that explained the missing servers & storage. (I had already 
double-checked that before posting here, but I found the error on triple check. 
So it's no longer a crap my pants scenario.)

But there's still something really weird happening with the firewall. We're 
still being flooded by alerts, and when I ping or ssh to the amazon machines, 
I'm seeing ...

Here's a really weird one ...

We have a couple of LAN's, whose external IP's are in the range a.b.c.d/e
The amazon firewall is configured to permit (usually) echo request and ssh from 
a.b.c.d./e
So ... machine "foo" on LAN1 is failing to ping or ssh machine "banana" and 
machine "orange" in the amazon network. But when I VPN into LAN1, I'm able to 
ping and ssh to "banana" and "orange" just fine.
Machine "bar" on LAN1 is failing to ping or ssh machine "banana", but 
successfully pinging and ssh'ing to "orange."

I login to AWS, and change the firewall to permit echo request and ssh from 
0.0.0.0/0, and suddenly both "foo" and "bar" work fine. Makes no sense.

Then, while I'm in the middle of something else and not changing firewall rules 
in amazon, suddenly the pings from bar stop being able to reach orange. Again, 
makes no sense.

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