ipv6mon is a tool meant for monitoring IPv6 address usage on a local network. It is meant to be particularly useful in networks that employ IPv6 Stateless Address Auto-Configuration (as opposed to DHCPv6), where address assignment is decentralized and there is no central server that records which IPv6 addresses have been assigned to which nodes during which period of time.

ipv6mon employs active probing to discover IPv6 addresses in use, and determine whether such addresses remain active.

Latest release

The latest release of ipv6mon is v1.0, and is available as: ipv6mon-v1.0.tar.gz.


PDF versions of the ipv6mon manuals are available online:

GIT repository

The GIT repository for the ipv6mon is: https://github.com/fgont/ipv6mon.git


Development of ipv6mon is partially supported through our IPv6 security trainings. Please consider attending one of our upcoming IPv6 security training courses