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W&T
IP-Watcher 2x2 Digital PoE
IP address and starts a cyclical search for alternate DHCP
servers in order to assign a new IP address.
If DHCP is activated, the remaining lease time together with the
current IP address in the menu branch
Home >> Doc >> Property
is displayed in seconds.
If after the assigned lease time has expired the DHCP
1
server cannot be reached, the IP-Watcher deletes its IP
address. All existing TCP and UDP connections between the
device and other network devices are interrupted by this
action. To prevent situations of this type, we recommend
configuring the lease time in the DHCP server for infinite if
possible.
2.6.4 Reserved IP addresses
The IP-Watcher provides services which other devices (clients)
in the network can make use of as needed. To open a
connection they of course need the current IP address of the
IP-Watcher, so that in these application cases it makes sense to
reserve a particular IP address for the IP-Watcher on the DHCP
server. As a rule this is done by linking the IP address to the
worldwide unique Ethernet address of the device which can be
found on the housing sticker.
5xxxx
[Typ]
EN=00c03d004a05
OK xxxxxx
Ethernet-Adresse
Ethernet address on sticker on the side of the housing
2.6.5 Dynamic IP addresses
Fully dynamic IP address assignment, whereby the IP-Watcher
receives a different IP address each time it restarts or after the
lease time has expired, only makes sense in network
environments having automatic cross-connection between the
DHCP and DNS services. In other words: When assigning a new
