Now we've gone completely insane

[Alan DeKok]

  In the "master" branch, we now have two new protocols.

ARP:

https://github.com/FreeRADIUS/freeradius-server/blob/master/raddb/sites-available/arp

BFD:

https://github.com/FreeRADIUS/freeradius-server/blob/master/raddb/sites-available/bfd


  We've been using BFD in customer sites for primary / secondary
failover detection.  It's weird, but useful.  After 18 months, we've now
made it public.

  ARP was done "just 'cause".

  i.e. adding a new protocol to the server is now trivial:

$ wc -l src/modules/proto_arp/*.c
     318 src/modules/proto_arp/proto_arp.c


  If anyone wants to add a schema for ARP, and implement the detection
rules from "arpwatch", that would be welcome. :)

  Alan DeKok.