97% off The Ultimate 2021 White Hat Hacker Certification Bundle.

Want to start making money as a white hat hacker? Jump-start your hacking career with our 2020 Premium Ethical Hacking Certification Training Bundle from the new Null Byte Shop and get over 60 hours of training from cybersecurity professionals. Line 57 – Catches control C and aborts the script.

Line 56 – Starts an instance of the 'PING SWEEP' class line 19, and calls the method 'ping sweeper' (on line 48). Line 55 – Sets up a try block to catch exceptions (errors). Line 54 – Python's little trick of calling a module as a standalone script. Line 51 – Calls ping with the build-in start method of the multiprocessing module. target=(the name of your worker function) args=(the loop variable, in our case 'host num' (1-254). Call the multiprocessing modules with it's parameters. The python range function says count from the start number up to, but not including the last number (in our case 255). Line 49 -Start a for loop that will loop through and count 1-254. Line 48 – Create the 'ping sweeper' multi-threading function (method). (This is repeated 254 times by Line 46, the 'ping sweeper' method)

Then it will print No response from and break out of the loop. If the string Unreachable in in the variable line. If true it will print Host i is Alive and break out of the loop. Line 31 – Check if the string bytes from is in the variable line. Line 28 – Runs the system's ping command with a count of 1 and store the result in the variable line. Line 27 – Takes the 'hostaddr' and add a dot and the 'host num' that will be passed in by Line 48. note, to access the variable in side the class, it needs to have self prepend. Line 26 – Use scapy to get the active interface and IP address, then removes the last dot and the last octet. ( note a function inside a class is called a method) This is the function that does all the work. Line 24 – Create the pinger function (method). Lin – 21 Initializes the 'ping sweeper' method on Line 48 (we'll get back to line 48 later) Line 16 – Import the sys module to use the exit function. Line 15 – The multiprocessing module, This scales/uses all cores and does the threading. Line 14 – Run a system command and get it's output and store it in a variable. Line 13 – Import scapy module,' get if addr'(get ip address), conf(get active configured interface). Line 10 – Allows the print statement to work under python 3.x. Note I can not use underscore because it screws up formatting. In testing, the average completion time were around 4.8 seconds on a Dual Core ( your time may vary due to Multiprocessing).Īuto detects active interface wired or wireless One of the advantages of the Multiprocessing module, is it's ability to auto scale across all processors and cores. It is using Python's Multiprocessing module that will do the multi-threading. I wanted the average completion time to be measured in seconds not minutes. I just want to know who is up and who is down (I tend to use the higher number IP address). The order will be determined by latency of the host. I wanted something that you doesn't need to be a network guru to use. I needed something that will ping 1-254 with Usain Bolt type of speed. It will ping host 1 through 254 and report it's status as Host is Active or No response from. So I wrote this Python script that will perform a ping sweep on the local sub-network. It's too slow and I would have to think (figure out network setting). I need something that I can run without having to figure out any network settings. And the box I'm given may have two or more network interface cards. Believe it or not, they are networks that are configured with class A and Class B classful network with some crazy Classless Inter-Domain Routing (CIDR). I sometimes visit clients sites that I need to obtain a usable IP address for a server or whatever. Why did I write this when they're tons of scanning tools available.

Python ping sweep oscp