More services
BAT54-Rail/F..
Release
7.54
06/08
12.1
Automatic IP address administration with
465
12 More services
An BAT offers a number of services for the PCs in the LAN. These are central
functions that can be used by workstation computers. They are in particular:
D Automatic address administration with DHCP
D Name management of computers and networks with DNS
D Logging of network traffic with SYSLOG
D Recording of charges
D Office communications functions with LANCAPI
D Time server
12.1Automatic IP address
administration with DHCP
In order to operate smoothly in a TCP/IP network, all the devices in a local
network must have unique IP addresses.
They also need the addresses of DNS-servers and NBNS-servers as well as
that of a default gateway through which the data packets are to be routed
from addresses that are not available locally.
In a smaller network, it is still conceivable that these addresses could be en-
tered manually in all the computers in the network. In a larger network with
many workstation computers, however, this would simply be too enormous
of a task.
In such situations, the DHCP (Dynamic Host Configuration Protocol) is the
ideal solution. Using this protocol, a DHCP server in a TCP/IP-based LAN
can dynamically assign the necessary addresses to the individual stations.
The BAT devices have a build in DHCP server, which assigns the IP address-
es in the LAN. If a DHCP server already exists in the local network, the device
in DHCP client mode can alternatively get the required address information
from the other DHCP server.
12.1.1 The DHCP server
As a DHCP server, the BAT can administer the IP addresses in its TCP/IP
network. In doing so, it passes the following parameters to the workstation
computers:
D IP-address
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