The Situation
I've configured my Broadband Internet Router to have fixed DHCP addresses for allowed devices (being used by household relatives). Before shutting off the Internet (so I can sleep), I typically ping IP addresses to see if they're connected. These are Wi-Fi connections, therefore, I can't physically see a LED light up on the router, itself.
The Configuration
I have the Raspberry Pi, Model B at 512MB, that has a physical LAN connect to my Broadband Internet Router, which also is a Wi-Fi access point. I am able to manually ping IP addresses when logging in via SSH.
The Project
Having a LED (connected via GPIO with resistor) light up when a specific IP address is active, without requiring a SSH or direct login. In other words, its a hardware version of the ping utility.
The Questions
- Can this be a BASH script that runs without SSH login?
- Can this be compiled from C source code? (I'm not used to Python, yet.)
- Can this run as a system service, whereas it's transparent to Raspberry Pi operations (Raspbian, XBMC, etc.)?
The Summary
I am not asking someone to write the code as I'm a veteran C programmer with 15+ years of Linux experience. I've never written code to test, and constantly retest of a specific IP address is alive or not. This project may be anywhere from extremely easy to extremely hard, but I know the Raspberry Pi can do it.
I will give credit to those that wish to make the initial code for me, as this project can be beneficial in many ways, such as checking if a specific device (computer, smartphone, etc.) is online or not. Thanks in advance!
Kuya Marc
