[Skunkworks] tools for capturing computers details in a network

hi folks, Im looking for a way of capturing computers with a lan with these details: user logon details mac address of ethernet/wifi computer name operating system service tag Are there such tools?rather than physically moving around the campus to pick these details. Please let me know how you guys do it in your organisations.I once had a cisco tool which i cant recall the name. Regards, Wallace. -- WALLACE NGENE TARURU wallacengene@gmail.com