Netdot is an open source tool designed to help network administrators collect, organize and maintain network information. Netdot features include: - Device discovery and Layer 2 topology discovery / graphing. - IPv4 and IPv6 address space management (also referred to as IPAM), including hierarchical organization, address block visualization and IP and MAC address location and tracking. - Cable plant information including: sites, rooms, jacks, closets, inter and intra-building fiber and copper wiring, circuits, etc. - Contact information for related entities: departments, providers, vendors, BGP peers, etc. - Netdot can generate configuration files for various other tools, including: Nagios, Sysmon, RANCID, Cacti, ISC BIND and ISC DHCPD.