Scanning tools are normally the most used in Admin Support Services. These programs send scans on your network and the information collected on a scan is used to generate reports. Analysis of assets, performance and other important factors of the network can be done using network scanning technology. The tools that fall under the category of the network protocol analyzers are often referred to as network sniffers. These utilities enable you to assess data such as what ports are in use and the origin of packets by capturing packets of data on your network. Network sniffers will alert you when a person is trying to enter into your network illegally or sending spam over your network.