_RiZ_ asks: "I work for a medium sized company and we are looking for a solution to aid in managing the ever complex IP space in use throughout the growing enterprise. We currently use a full class B of public addresses as well as all RFC 1918 ranges. The idea came up to develop this application internally, however this has proven in the past to be more of a headache, especially if the original developer changes roles or moves on from our company. We have looked at IPplan, but have found this program is more intended for an ISP documenting customer ranges rather than an enterprise IT shop. We would like something which is database driven, intuitive to use, and preferably open source, although a good commercial solution is always a viable option. Does anyone have any suggestions?"