i've tomato, and i'm familiar w the firmware. i use QoS 24/7 and blah blah. however, i lack scripting experience. Now i want to accomplish this task: i've computer assigned specific IP. I want it such that if computer A is disconnected (either by turning it off, or LAN cable unplugged) then the whole router freezes or the internet access is disabled. i'm thinking of doing a ping to computer A every 15 minutes. and if there is no successful ping then a command will be carried out. Could anyone draft me such script? or point me in some direction, plz?