The dhcpcd man page states that dhcpcd will execute /etc/dhcpc/dhcpcd-<interface>.exe "whenever it detects a change in IP address". It would be very useful for firewall purposes if pump had similar functionality. Rather than executing a script when the IP changed, I would have it execute the script when a lease was obtained or renewed (in case the new lease changed something other than the IP address). -Peter
Done in pump-0.7.8