Routing and WAN connections
394
11.7
Changes in other services
BAT54-Rail/F..
Release
7.54
06/08
D Automatic: With this setting, the device regularly searches the local
network for other DHCP servers. The LAN-Rx/Tx LED flashes briefly
when this search is in progress.
If another DHCP server is discovered the device switches its own
DHCP server off. If the BAT Router is not configured with an IP
address, then it switches into DHCP client mode and queries the LAN
DHCP server for an IP address. This prevents unconfigured devices
being introduced to the network from unintentionally assigning
addresses.
If no other DHCP server is discovered the device switches its own
DHCP server on. If another DHCP server is activated later, then the
DHCP server in the BAT Router will be deactivated.
D 'Yes': DHCP server is permanently switched on. When this value is
entered the server configuration (validity of the address pool) is
checked.
If the configuration is correct then the device starts operating as a
DHCP server in the network.
Errors in the configuration (e.g. invalid pool limits) will cause the
DHCP server to be deactivated.
Note: Only use this setting if you are certain that no other DHCP server is
active in the LAN.
D 'Client mode': The DHCP server is deactivated, the device behaves as
a DHCP client and obtains its address from another DHCP server in
the LAN.
Note: Only use this setting if you are certain that another DHCP server is in
the LAN and actively assigning IP addresses.
D 'Relay requests': The DHCP server is active and receives requests
from DHCP clients in the LAN. The device does not respond to
requests, but forwards them to a central DHCP server elsewhere in the
network (DHCP relay agent mode).
D Default: Automatic.
D Broadcast bit check
This setting decides whether the broadcast bit from clients is to be
checked. If the bit is not checked then all DHCP messages are sent as
broadcasts.
D Default: Off.
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