Projects / L4ip


l4ip is a daemon that extends IPFilter's simple round-robin L4 load balancing with health checks. It takes care of monitoring and dynamically adding and removing ipnat rules in the kernel. It fully supports TCP, UDP, and system()-style executions for health checks, including send/expect scripts, SSL connections, and much more.

Operating Systems

Recent releases

  •  28 Feb 2006 10:30

    Release Notes: Solaris SMF example files were added along with a "proxy" command for protocols that need it, such as FTP and IPSec.

    •  02 Mar 2005 09:45

      Release Notes: This release adds an optional feature to add ipf rules to log RST packets, and upon seeing these mark the service down. For "some failure situations" it will detect service failure faster.

      •  24 Feb 2005 10:54

        Release Notes: This stable version supports both kernel ioctl() and command line execution of the "ipnat" binary to add and remove rules. It also features complete TCP, UDP, and system testing and SSL.

        Recent comments

        24 Feb 2005 01:19 lundman

        CVS Repository

        If you want to run the latest version, please use CVS Reposity at:


        password anoncvs.

        project name: l4ip


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