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W&T
IP-Watcher 2x2 Digital PoE
To prevent unintended address assignments or address
1
changes, we recommending deactivating DHCP and
BOOTP/RARP unless they are expressly used in the respective
network environment. W&T network devices with incorrectly
assigned IP addresses may be subsequently reconfigured using
the WuTility.
2.6.1 Activating/deactivating assignment procedures
The factory default setting is for DHCP activated. The following
options are available for deactivating, specifying a different
assignment procedure or for reactivating at a later time:
.
WuTility:
In the inventory list select the desired IP-Watcher
and click on the
IP-Address
button. In the first dialog box
you enter the network parameters you want to assign and
confirm by clicking on
Next
. In the following dialog box
activate the desired protocol for automatic IP address
assigning or turn this option off there. Click on
Next
to
apply the configured parameters to the device.
.
Web-Based Management:
Using Web-Based Management
you can alternatingly activate the protocols or deactivate
both of them. For detailed information please refer to the
section
Assigning the basic network parameters
.
2.6.2 System name
In order to support any later automated updating of the DNS
system by the DHCP server, the IP-Watcher identifies itself within
DHCP with its system name. The factory set name is
IP-Watcher
2x2 Digital-
followed by the last three places in the Ethernet
address. For example, the factory set system name of an IP-
Watcher having Ethernet address 00:c0:3d:01:02:03 is
IP-
Watcher 2x2 Digital-010203
. The system name of the device
can be changed using Web-Based Management.
2.6.3 Lease-Time
The lease time determined and conveyed by the DHCP server
specifies the time of validity of the assigned IP address. After
half the lease time has expired the IP-Watcher attempts to
extend the validity or update the address. If this is not possible
by the time the lease time expires, for example because the
DHCP server is no longer accessible, the IP-Watcher deletes its
