AirWave is displaying an error on two controllers. It is reporting these controllers as down, but they are not down. The error is: Status: down (unexpected LAN MAC address found at this device’s IP address.
Environment : This article implies to all versions of Airwave.
This Error occurs when a hardware replace takes place. in other works we can say that Airwave will show this error when an existing device is replaced with a new device physically.
Airwave maintains a data base of the devices which are provisioned on it. Below are few details which are mapped for each device.
1: Mac Address
2: IP address
3: Host name
4: Device Type
5: Firmware version etc.
Airwave does SNMP poll for all these devices and timely update these entries. the above error occurs when Airwave receives a new (non matching) Mac address for a given IP.
The monitoring stops for this device and is marked as down.
How do we fix this?
If we replace a device physically, we must ensure that the same is replaced on Airwave also.
We can navigate to the manage page of the device and do a replace hardware.
In case we did not do a hardware replace and see this error, we can navigate to the manage page of the device showing this error and hit the "Reset" button on this page.