Suggestion

[emily-pesce]

Edit / Clarification suggestion in README:

Note that by default FreeBSD/pfSense use a max age of 20 minutes for arp entries (sysctl net.link.ether.inet.max_age). You may lower that using System -> Advanced -> System Tunables if desired.

I suggest clarifying that this setting's value is in seconds, so the default would be 1,200.

Whatever the desired value is should be inputted in seconds. If someone misinterprets and puts, for example, "5", then they might cause some ARP flooding/issues.