Using RARP to configure the IP address- Page 34

Appendix A

29

A

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 see 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:

BRN008077310107 1  00:80:77:31:01:07 192.168.1.2

and:

BRN008077310107: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 machine is powered 
on.

Using RARP to configure the IP address

A

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   BRN008077310107

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).

If the RARP daemon is not already running, start it (depending on the system the command can be 

rarpd

, 

rarpd -a

, 

in.rarpd -a

 or something else; type 

man rarpd

 or see your system documentation for 

additional information). To verify that the RARP daemon is running on a Berkeley UNIX

®

-based system, type 

the following command:

ps -ax | grep -v grep | grep rarpd

For AT&T UNIX

®

-based systems, type:

ps -ef | grep -v grep | grep rarpd

The Brother print server will get the IP address from the RARP daemon when the printer is powered on.