find all ip address in a network

Question

I am trying to do this C#. I need to find all ip address that are active in my network and show them in a list. I can ping all available (1...255) ip address in a network. B

Answer 1

if you want to go the ARP route, you can simply send out ARP requests for all adresses, wait a bit, and look into the ARP table of your host

this may help

http://www.codeguru.com/cpp/i-n/internet/internetprotocolip/article.php/c6153/How-to-Get-an-ARP-Table-with-an-IP-Helper-API.htm