Backup Router

The VRRP router that is backing up an IP address. It assumes forwarding responsibility for the virtual IP address if the Master fails.

Critical IP

The IP address that a VRRP router sends/receives messages on for a particular session.

IP Address Owner

The VRRP Router that has the virtual router's IP address(es) as real interface address(es). This is the router that, when up, will respond to packets addressed to one of these IP addresses for ICMP pings, TCP connections, and so on

Master Router

The VRRP router that owns the IP address (i.e., is being backed up), and which is the default router for forwarding for that IP address.

Virtual IP

The IP address that is being backed up by a VRRP session.

Virtual Router

A router managed by VRRP that acts as a default router for hosts on a shared LAN. It consists of a Virtual Router Identifier and a set of associated IP addresses across a common LAN. A VRRP Router might backup one or more virtual routers.

VRRPv2 Router

A router running the Virtual Router Redundancy Protocol version 2. It might participate in one or more virtual routers.

VRRPv3 Router

A router running the Virtual Router Redundancy Protocol version 3. It might participate in one or more virtual routers.