OpenBSD manual page server

Manual Page Search Parameters

RARPD(8) System Manager's Manual RARPD(8)

rarpdreverse ARP daemon

rarpd [-adflt] if0 [... ifN]

rarpd services Reverse ARP requests on the Ethernet connected to the specified interfaces. Upon receiving a request, rarpd maps the target hardware address to an IP address via its name, which must be present in both the ethers(5) and hosts(5) databases. If a host does not exist in both databases, the translation cannot proceed and a reply will not be sent.

In normal operation, rarpd forks a copy of itself and runs in the background. Anomalies and errors are reported via syslog(3).

The options are as follows:

Listen on all the Ethernets attached to the system. If -a is omitted, a list of interfaces must be specified.
Run in debug mode, with all the output to stderr. This option implies the -f option.
Run in the foreground.
Log all requests to syslog(3).
Only honour a request if the server (the host that rarpd is running on) can "boot" the target; that is, if a file or directory called /tftpboot/ipaddr exists, where ipaddr is the target IP address expressed in uppercase hexadecimal (only the first 8 characters of filenames are checked).

Ethernet host name database.
Host name database.

bpf(4), diskless(8)

R. Finlayson, T. Mann, J. Mogul, and M. Theimer, A Reverse Address Resolution Protocol, RFC 903, June 1984.

Craig Leres <> and Steven McCanne <>, Lawrence Berkeley Laboratory, University of California, Berkeley, CA.

October 28, 2015 OpenBSD-6.7