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sweater
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Enthusiast

Astaro firewall change, hosts disconnect seconds later, can't find any smoking gun

We recently implemented a firewall change for some SQL traffic on one of our LAN segments that seemingly had zero impact (or shouldn't have had any impact) on vCenter <--> host connectivity. We've contact Astaro who say that nothing should be impacted, not related, whatever.

It's pretty simple setup:

4.1 Server 2008 vCenter on 10.0.0.50

three 4.1 hosts on 10.0.0.51, 52, 53

The vCenter server is a guest on the first host.

I've restarted agents via the console on the hosts, no change. I can look up the hosts from the vCenter via DNS, can ping the hosts. Launching a VI client directly to the IP of the host results in

A communication error occurred while sending data to the server. (The underlying connection was closed: An unexpected error occurred on a send.)

From the vCenter server I cannot reach the web pages on any of the hosts - https://10.0.0.51, etc.

Would anyone be able to dumb down the steps to set up some traffic capture to try and nail down where these packets are being dropped, etc?

- mike

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