how would i do something like this im useing dev-c++ EX: for (int i=number; i255; i++) system ("ping 192.168.1."i); // this part i dont know how to get the number there ? thx

It's pretty easy to do, but what is your purpose for having a C++ program that issues a bunch of ping commands. Given that you won't see the results, what's the point?? I can't think of any 'productive' use.

im just learing how to place codes in other whys i was just using system("ping") as EXp:

Before the loop: char buffer[50]; Inside the loop: sprintf(buffer,"ping 192.168.1.%d",i); system(buffer); sprintf() is like fprintf() except that it writes it's output to the memory pointed to by the first parameter instead of to a file.

thank you

When I am online using my dial-up connection, my firewall is constantly blocking ping requests. In less than one hour, it will usually receive close to two hundred such requests! They come from different I.P. addresses but all of the I.P.'s are originating from the same general location. I'm not convinced that gorf has no ulterior motives in wanting to know how to accomplish this task. Why would someone want to send so many requests? Is this likely an attempt to burn up a hosting company's bandwidth? What would happen if my firewall let my computer respond to these pings? Anyone have any thoeries or knowledge about this subject?

Actually using c++ to loop ping commands is a great way to attack servers or unprotected IP addresses. Ask CNN when a "hacker" used this technique to flood their system with pings....it couldn't handle so many because the computer is forced to answer every ping.........