I know there was a thread back in May of last year (07) of ASA's not having one, has anyone thought of this design flaw? We have a great need for this, since our current environment has seen degradation of the AC units and our DC is locked in currently. Budgetary constraints won't allow us to move now, so we need to be able to monitor temperatures before a total AC outage happens again. These ASA's (failover conf) will take on new duty of the old VPN concentrator (does have a temp sensor...strange, why wouldn't this carry over).
Sorry, I misunderstood your initial question. I was thinking that you were talking about the FAN itself :-)
Yes, you are correct. The ASA5510 and higher running 7.x and 8.0 versions does not have a show command for the environment status or a MIB to pull this specific information.
Couple of things I wanted to mention and hope you find it useful.
1. The cfwHardwareStatusValue object from the CISCO-FIREWALL-MIB will let you know if the device is too hot or not.
2. The ASA5580 running 8.1 version has the command that you are looking for, that is "Show Environment". And Version 8.1 is only supported on ASA 5580-20 and ASA 5580-40 adaptive security appliances
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