rarpd services Reverse ARP requests on the Ethernet connected to
interface. 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).