Advanced Vrrpd: high-availability solution, easy to use and easy to configure. No dependency is required, it works with very low memory and CPU usage.

A lightweight, fast, and free solution

That version has many improvements like monitoring other vrrpd processes and executing a command when changing back and forth from master to backup.

You can also use atropos program for view or change global state. Tested on Linux only http://numsys.eu

VRRPD - when an interface change his state to backup, or master, them can have associated up/down scripts
VRRPD - Ethtool supervision (link up/down)
VRRPD - multi-interfaces - The Master communicate his state to all another process. If for some reason one process be backup, link down for example, all the system change for backup state.
VRRPD - Magic packet - If you can't use virtual mac adress, Vrrpd send gratuitous ARP and it can also send magic packet from virtual to gateway
VRRPD - Is now Compatible with vlan interfaces - with one vmac by vlan -
VRRPD - Optional subnet mask for the VIP address
Atropos client - You can use atropos for change or/and know the master's state (for example in supervision script)

With vmac disable Spanning Tree Protocol (STP) on the switch ports where VRRP is running ! On VM vmac should be disabled (default: -n for enabled)

The Virtual Router Redundancy Protocol (VRRP) is a computer networking protocol that provides for automatic assignment of available Internet Protocol (IP).