Using BOOTP to configure the IP address; Using RARP to configure the IP address; Using RARP to configure the IP address - Page 101

Appendix A

 89

A

Using BOOTP to configure the IP address

BOOTP is an alternative to RARP that has the advantage of allowing configuration of the subnet mask and 
gateway. In order to use BOOTP to configure the IP address make sure that BOOTP is installed and running 
on your host computer (it should appear in the 

/etc/services

 file on your host as a real service; type 

man 

bootpd

 or refer to your system documentation for information). BOOTP is usually started up via the 

/etc/inetd.conf

 file, so you may need to enable it by removing the “#” in front of the bootp entry in that 

file. For example, a typical bootp entry in the /etc/inetd.conf file would be:

#bootp dgram udp wait /usr/etc/bootpd bootpd -i

Depending on the system, this entry might be called “bootps” instead of “bootp”.

Note

In order to enable BOOTP, simply use an editor to delete the “#” (if there is no “#”, then BOOTP is already 
enabled). Then edit the BOOTP configuration file (usually /etc/bootptab) and enter the name, network type 
(1 for Ethernet), Ethernet address and the IP address, subnet mask and gateway of the print server. 
Unfortunately, the exact format for doing this is not standardized, so you will need to refer to your system 
documentation to determine how to enter this information (many UNIX

®

 systems also have template 

examples in the bootptab file that you can use for reference). Some examples of typical /etc/bootptab entries 
include:

BRN_310107 1  00:80:77:31:01:07 192.168.1.2

and:

BRN_310107:ht=ethernet:ha=008077310107:\

ip=192.168.1.2:

Certain BOOTP host software implementations will not respond to BOOTP requests if you have not included 
a download filename in the configuration file; if this is the case, simply create a null file on the host and specify 
the name of this file and its path in the configuration file.

As with RARP, the print server will load its IP address from the BOOTP server when the printer is powered on.

Using RARP to configure the IP address 

The Brother print server’s IP address can be configured using the Reverse ARP (RARP) facility on your host 
computer. This is done by editing the 

/etc/ethers

 file (if this file does not exist, you can create it) with an 

entry similar to the following:

00:80:77:31:01:07   BRN_310107

Where the first entry is the Ethernet address of the print server and the second entry is the name of the print 
server (the name must be the same as the one you put in the 

/etc/hosts

 file).