Projects / MasarLabs NoArp

MasarLabs NoArp

MasarLabs NoArp is a Linux kernel module that filters and drops unwanted ARP requests. It is useful when you need to add an alias to the loopback interface to use a load balancer.

Operating Systems

Recent releases

  •  16 Dec 2004 17:25

    Release Notes: Minor changes were made to work with Linux kernel 2.6.9.

    •  04 Mar 2004 19:45

      Release Notes: This is the port to Linux 2.6.x. With this version, kernel 2.4.x is no longer supported: use the 1.x.x version for the old kernel.

      •  03 Nov 2003 14:53

        Release Notes: Minor documentation changes were made.

        •  31 Oct 2003 11:59

          Release Notes: This version fixes the mcount initialization value, and adds a check for the running kernel version in There are minor documentation changes in the README and man page.

          •  25 Sep 2003 10:50

            Release Notes: A problem with "observer" where the noarp module did not correctly suppress the selection of the VIP as the sender IP address in ARP requests was fixed. This solved an issue where the back-end host was updating all ARP cache entries on the local net for the VIP with the MAC of the back-end host.


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