Internet :
NetPenguin 1.05
NetPenguin - including following network tools:IP Scanner which can find IP address;LAN Scanner which can scan IP addresses in ethernet LAN;Ping;netstat;Port Scanner;Domain Name Search which can find informations of country and others from DNS,whois server;Packet Sniffer;MAC Address Scanner which can lookup MAC address with a specific IP address;and ARP fastener which could bolt ARP to IP address
This software is a shareware. You will be able to download and test NetPenguin during a certain period of time, then, if it does what you need, you will have to acquire the full version. The trial version available for download on www.softandco.com has a size of 9603 KBytes. For additional information and support request, please contact directly NetPenguin publisher.

NetPenguin 1.05 was released by NetPenguin.Net on Wednesday 28 December 2005. Its known requirements are : Intel Pentium or higher with 64 MB RAM or more. More than 128MB Recommended !.
NetPenguin will run on Windows 95, Windows 98, Windows Me, Windows 2000, Windows NT and Windows XP.