arpwatch (2.1a15-3) experimental; urgency=low Starting with version 2.1a15-3, arpwatch ships with systemd unit files. The change requires manual steps after the upgrade. The `/etc/arpwatch.conf` file, which can be used to specify different configuration options for multiple interface, is replaced by individual configuration files for each interface. If you have configured arpwatch using `/etc/arpwatch.conf` file, you need to convert this to the new format. See `/etc/arpwatch/README` for details. After the upgrade, arpwatch will not be started by default. You need to specify the interface(s) to run on, see `/etc/default/arpwatch` for instructions. If your database file in `/var/lib/arpwatch/` is called `arp.dat` you need to rename it to `IFACE.dat` (where IFACE is the name of the interface you configured arpwatch to run on) if you want to keep your current arp database. Also, make sure to drop the `-i` option from ARGS if you were using that to specify the interface. -- Lukas Schwaighofer Thu, 23 Mar 2017 21:05:48 +0100