The free open-source DHCP Server and DHCP API for Java.

Dhcp4java is a free open-source 100% Java DHCP Server: general purpose DHCP server ranging from a simple LAN server to a wide range WAN server handling millions customers.

Dhcp4java also includes a general pupose DHCP API as a stand-alone library, suitable for client/server/relay development. It originates from the Perl module Net::DHCP.

Link to the dhcpd-j sourceforge project.

Link to the dhcp4java sourceforge project.

Project License: GNU General Public License (GPL).

• 2008-05-11: Release 1.00
  • Now proudly announcing the official 1.00 release. Only containing a small fix to enhance conformance to rfc 2131, thanks to Thiago Figueiredo.
• 2007-12-05: Release 0.99
  • Changed to version 0.99 after being into production for quite a while now. More unit tests and enhancements proposed by Manuel Kasper and John Tobey.
• 2007-05-15: Release 0.73
• 2007-04-25: Release 0.72
• 2006-12-19: Release 0.71

This site includes two complementary open-source projects:

1. dhcpd-j DHCP Server: a generic DHCP Server, with a rich and extensible set of functionalities. The key features are: reliability, performance and extensibility — in that order. It is designed to be highly scalable ranging from a simple LAN with a simple install-and-run process, up to high range telecom class WAN servers handling millions of simultaneous customer.
2. dhcp4java API for DHCP: a general purpose API for receiving and sending DHCP/BOOTP packets with support for a variety of options with a high-level datatypes support. It includes a server framework based on a model similar to the well-known Servlet model. Note: it is limited to IPv4 DHCP.

Please read the Overview section for more details.