http://www.securityconfig.com/software/enterprisemonitoring/lansurveyor.html

LANsurveyor is unique because it provides four essential functions in one cost-effective application: automatic network maps, asset management reports, network monitor, and remote administration and distribution. LANsurveyor is available in three configurations: LANsurveyor Management Station, LANsurveyor Workgroup Edition, and LANsurveyor Enterprise Edition. Each configuration includes the same basic LANsurveyor application functionality. The primary difference is the number of Neon Responders included: 20, 100, and unlimited, respectively. Neon Responders are an integral part of LANsurveyors functionality. Learn more about Neon Responders.