phpipam is an open-source web IP address management application. Its goal is to provide light and simple IP address management application.
It is ajax-based using jQuery libraries, it uses php scripts and javascript and some HTML5/CSS3 features, so some modern browser is preferred
to be able to display javascript quickly and correctly.

Features and tools:

• Section / Subnet separation
• Subnet nesting
• IPv4/IPv6 support
• REST API
• Subnet ICMP/telnet scanning and automatic status updates
• Displays free range and number of clients
• Subnet statistics
• User management
• AD/LDAP/OpenLDAP/Radius authentication support (multiple servers)
• E-Mail notification with IP details
• Import IP addresses from XLS / CSV file
• Export IP database to XLS file
• IPv4/IPv6 calculator
• Search IP database
• IP request module
• Custom IP address fields
• and much more...

What it does not do:

• Updates DNS server