User manual

User’s Manual InterCon-PrintServer
28
3.4 Configuration using the DHCP Protocol
The dynamic allocation of IP addresses using DHCP (Dynamic Host Configuration Protocol)
assumes the presence of a system that co-ordinates the allocation of IP addresses to logical host
names. This is the job of the Domain Name Servers (DNS), which must be dynamically configured
by the DHCP server. Under Windows NT 4.x the DNS server can be configured so that it passes on
all name requests to the WINS server if the DNS server cannot itself correctly process the name
request.
Once the print server has received the IP address of a WINS server from the DHCP server, the print
server transmits the WINS server a name registration request. Here the print server’s host name
(parameter sys_name) and its IP address (parameter ip_address) are used. The WINS server’s
answer contains the inserted name’s period of validicity from the WINS data base. Once the period
of validicity has expired, the print server renews its registration.
For the installation of a print server on a DHCP server please read the relevant operating systems
manual.
Changing the host name
The host name can only be changed using the FTP protocol. Change to the directory where you
intend to save the newly created configuration file. Start the File Transfer Protocol and open a
connection to the print server host:
% ftp 192.0.0.123
Retrieve this file by entering the following command:
ftp> get params
Modify the print server host name in the configuration file. You may use any text editor of your
choice.
sys_name = IC01149F
In order to save the edited configurations parameters on the print server, start the File Transfer
Protocol and open a connection to the print server host. Transmit the configuration file to the print
server host by entering the following command:
ftp> put params
✔
Once the print server is switched on, broadcasts (DHCP / BOOTP / RARP) are
transmitted. If these broadcasts are not answered the print server terminates this
process after a time period of one minute. During this period the print server
attempts to contact the following servers in the following order every five seconds
DHCP Æ BOOTP Æ RARP.