yeah, its 5:30am so i have nothing better to do than anything which avoids sleep! Code: sudo apt-get update && sudo apt-get install nmap etherape && gksudo etherape This will install nmap and install and run etherape, click Pref. and turn off name resolution in etherape and in another terminal... Code: nmap -sP -iR 150 -n now keep your eye on etherape, 150 nodes will appear and patterns start to form on the lines representing the connections... note: "nmap -sP -iR 150" instructs nmap to ping 150 random IPs, if you'd rather not be spewing echo requests across the Internet then use "nmap -n -sP 192.168.255.*" The more nodes you ping the more impressive it becomes... if your really bored turn on dns resolution (nmap -sP -iR 150 -R) and watch all the dns replies come back in wireshark for the next few minutes after you kill nmap...