Beside the so far recommended high availability (HA) solution (Heartbeat), a new and more modern approach for Virtual IP address transition between cluster nodes is available in the Zorp Management Console (ZMC), namely, the Keepalived solution.

Keepalived offers a framework not only for enabling high availability but for load balancing as well. Its load balancing solution relies on the Linux Virtual Server (IPVS) kernel module, while its HA solution is based on Virtual Router Redundancy Protocol (VRRP). VRRP protocol provides automatic assignment of available IP routers to ensure resilient routing paths.