rarpd v1.0 is a Reverse Address Resolution Protocol Daemon. rarpd listens on the ethernet for broadcast packets asking for reverse address resolution. These packets are sent by hosts at boot time to find out their IP address.
You can download it from the following link: https://packetstormsecurity.com/files/download/13334/rarpd-1.0.tar.gz
Source: https://packetstormsecurity.com/files/13334/rarpd-1.0.tar.gz.html