HP-UX LAN Administrator's Guide (Feburary 2007)

LAN Device and Interface TerminologyDRAFT COPY
RARP Configuration
Chapter 8144
This can be done with a text editor such as vi. This will cause /usr/sbin/rarpd to be started
at boot time.
Another file which must be modified is /etc/rarpd.conf. This is the RARP server database
file. It contains a list of entries that map hardware address to IP address for each client
interface.
The /etc/rarpd.conf file has the following format:
• A comment line is indicated by a pound sign (#) in the first column.
Other than comment lines and blank lines, all lines are considered client entries. A client
entry is of the form:
— <hardware_address> <ip_address>
where <hardware_address> consists of colon-separated (:) hexadecimal bytes, and
<ip_address> consists of dot-separated (.) decimal bytes.
Example:
— 08:00:09:22:e4:a9 15.13.106.69
There must be exactly 6 hardware address bytes.
There must be exactly 4 protocol address bytes.
Once the rarpd server is started, it will receive RARP requests over all configured network
interfaces, and it will respond to clients that have entries in the RARP database.
If the /etc/rarpd.conf file is modified while a rarpd is already running, the changes will not
be reflected in the rarpd application until it is restarted or is sent the SIGHUP signal. To see
what information is in the currently running rarpd, sending it a SIGINT signal causes it to
dump its database into /var/tmp/rarpd.db.
See the rarpd(1M) and rarpc(1M) man pages for more information.