rarpy 0.1.2

RARP server that responds to RARP requests with a configured MAC-to-IP mapping

rarpy

RARP server implemented in Python that responds to RARP requests with a configured MAC-to-IP mapping.

Installation

pip install rarpy

Usage

The server is started via the rarpy executable whose usage in the command line can be accessed via rarpy --help. Sudo must be used when running rarpy so the server has the permissions to work with the network interfaces.

The network interface that the server listens to must be specified, for example:

sudo rarpd en0

starts a server listening on interface en0.

The MAC-to-IP mapping can be configured via the command line with the --mapping (-m) option:

sudo rarpy -m 02:0d:db:a1:15:10 192.168.10.201 en0

and multiple mappings can be specified if desired:

sudo rarpy -m 02:0d:db:a1:15:10 192.168.10.201 -m 02:0d:db:a1:15:11 192.168.10.201 en0

Mappings can be also be configured in a file structured like:

02:0d:db:a1:15:10 192.168.10.201
02:0d:db:a1:15:11 192.168.10.201

and then picked up by rarpy with the --mapping-file (-f) option:

sudo rarpy -f /path/to/mapping/file en0

Mappings from a file and command line can be used simultaneously, and where there are conflicts, the command line mapping overrides the file.

If no --mapping-file is specified, rarpy will look to see if /etc/ethers exists (default file from older RARP daemon tools), and if it does, it will use that file.