parpd

parpd is a Proxy ARP Daemon and complies with RFC 1027. parpd is released under the 2 clause BSD license.

Configuring

Configuration is found in the file /etc/parpd.conf
Comment lines should start with # or ;
Each line compromises of two or three words:
<command> <inet address> [<hardware address>]

Here are some examples:

# parpd.conf example

# These two do the same thing
proxy 192.168.0.0/24
proxy 192.168.0.0/255.255.255.0

# Send this hardware address to this host
proxy 192.168.0.5 aa:bb:cc:dd:ee:ff

# Ignore a host
ignore 192.168.0.8

# another parpd.conf example

# This one is more interesting - it tells parpd to proxy all ARP requests
# except for a specific subnet.
proxy 0.0.0.0/0
ignore 10.0.0.0/24

# attack example, useful for testing IPv4 Address Conflict Resolution
attack 169.254.0.0/16

parpd Verstable to manage large rulesets and addresses so it remains performant in the most challenging of networks.