addrwatch (arp traffic montor)

This is a tool similar to arpwatch. It main purpose is to monitor a
network and log discovered ethernet/ip pairings.

Main features of addrwatch:

* IPv4 and IPv6 address monitoring
* Monitoring multiple network interfaces with one daemon
* Monitoring of VLAN tagged (802.1Q) packets.
* Output to stdout, plain text file, syslog, sqlite3 db, MySQL db
* IP address usage history preserving output/logging

NOTE:

There is a disparity between features listed in the manual and via
--help.
