Monitoring, Management & Location Tracking

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.

Root cause:

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.