If  you are looking for IP address management tools, you may also want to check the following tools...

OpenNetAdmin

Quite similar to LanIP (motto: "Stop using that spreadsheet!"), without the goodies, like ping or wake-on-lan.

Much prettier GUI, and advanced classification system (by VLAN, location, DNS or DHCP).

Infoblox IPAM Winconnect LE

Light version of a commercial tool , seems to integrate with Microsoft's DNS and DHCP.

NetDot

Handles physical layer (cables and so). Manages IPv6 address, does automatic network discovery...

Nedi

No tested.