One aspect of computer network management, which can be challenging to some, is allocation and tracking of IP addresses.  There are a variety of methodologies on how to keep track of them, be it a simple spreadsheet log or a monitoring tool, which constantly tracks distribution and use.  While opinions vary on how to best use IP addresses, either dynamic or static, or a mixture of both, each node on a network will ultimately require one type or the other. In the dynamic environment, each time a node’s network interface is powered on, it is assigned an IP address by a service like DHCP.  This type of address is assigned for a predetermined period of time, based upon the service distributing the addresses.  In a static IP address environment, each node (computer, network equipment, or otherwise) is assigned an IP address on a more permanent basis, and the address stays with the node until such time as a technician manually alters the address by hand, by login script, or other methods. In order to keep tabs on how many IP addresses are being used, most people will lean towards having some type of utility to monitor the usage and distribution.  Axence Net Tools Pro is a collection of scanning and monitoring tools for IP addresses.  Instead of having several different brand of network tools, Axence combined popular utilities into one graphical interface

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Free network scanning and monitoring with Axence Net Tools Pro