VRRP
The Virtual Router Redundancy Protocol (VRRP) is a networking protocol to
provide enhanced availability and reliability of routing paths via automatic
default gateway selections from a set of routers in an IP subnetwork.
Enable:
option to activate the VRRP protocol in the router.
Group ID:
specify the VRRP group the router belongs to.
Priority:
the priority of the router within the VRRP group. Valid from 1 to
255. The larger value has the higher priority.
Interval:
the interval in seconds at which the master router (with the
highest priority) sends keepalive packets to the backup routers.
Virtual IP:
a Virtual IP address shared among the VRRP group routers as
the gateway IP in the LAN. A router with the same LAN IP as the virtual
IP is the master router and the rest are backups. In case the master fails,
the virtual IP address is mapped to a backup router's IP address
according to its priority and this backup router becomes the gateway.
