IP address conflict detection

This dialog allows you to detect address conflicts the device is having with its own IP address and rectify them (Address Conflict Detection, ACD).

Tab. Possible address conflict operating modes

Mode

Meaning

Field „Status“

Defines the status for the IP address conflict detection. The value of the status field can be „enable“, „disable“, „activeDetectionOnly“ or „passiveDetectionOnly“.

enable

Enables active and passive detection.

disable

Disables the function

activeDetectionOnly

Enables active detection only. After connecting to a network or after the IP configuration has been changed, the device immediately checks whether its own IP address already exists within the network.

If the IP address already exists, the switch will return to the previous configuration, if possible, and make another attempt after 15 seconds. The device thus avoids participating in the network traffic with a duplicate IP address.

passiveDetectionOnly

Enables passive detection only. The device listens passively to the network to determine whether its IP address already exists. If it detects a duplicate IP address, it will initially defend its address by employing the ACD mechanism and sending out gratuitous ARPs. If the remote connection does not disconnect from the network, the management interface of the local device will then disconnect from the network. Every 15 seconds, it will poll the network to determine if there is still an address conflict. If there is no conflict, it will connect back to the network.

Field „Fault State“

Displays, if the device has detected an IP address conflict.
In this case the value of the field is „false“.


Buttons

Tab. Buttons (Forts.)

Button

Meaning

“Set”

Transfers the changes to the volatile memory (RAM) of the device. To permanently save the changes afterwards, you open the Basic Settings:Load/Save dialog and click “Save”.

“Reload”

Updates the fields with the values that are saved in the volatile memory (RAM) of the device.

“Help”

Opens the online help.