Ip Address Conflict Detection - Hirschmann RS20 Reference Manual

Diagnostics

7.10 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).
 In "Status", select the operating mode for the IP address conflict detection
(see table 133). The default setting is disable.
 In the "Fault State" field, the device displays the current result of the IP
address conflict detection.
Possible values:
 false: the detection is disabled, or the device has not detected any
problem; or

true: the device has detected a problem.
Mode
Field „Status"
enable
disable
activeDetectionOnly Enables active detection only. After connecting to a network or after
passiveDetectionOnl
y
Field „Fault State"
Table 133:Possible address conflict operating modes
212
Meaning
Defines the status for the IP address conflict detection. The value of
the status field can be „enable", „disable", „activeDetectionOnly" or
„passiveDetectionOnly".
Enables active and passive detection.
Disables the function
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.
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.
Displays, if the device has detected an IP address conflict.
In this case the value of the field is „false".
7.10 IP address conflict detection
RM GUI L2E
Release 8.0 05/2013