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    Example: VRRP Configuration Without the Real Address Owner

    Figure 1 is noticeably similar to Unresolved xref except that the addresses configured by the VRIDs have no real owner. Consequently, both routers R1 and R2 are configured as backup routers for VRID 1, VRID 2, VRID 3, and VRID 4.

    Figure 1: VRRP Configuration Without the Real Address Owner

    VRRP Configuration Without the Real Address

    Assuming that preemption is enabled, the router that is configured with the highest priority for each VRID becomes the master router. If priorities are the same, the router that has the highest primary address becomes the master router.

    This configuration shows how the address owner does not necessarily need to exist under VRRP, and all PCs can reach destinations outside of their network through the current master VRRP router. Depending on the accept-data configuration, the PCs may even be able to ping their default gateway.

    The election protocol specified in VRRP uses IP multicast packets to provide the router with redundancy. Therefore, VRRP can operate over a variety of multiaccess LAN technologies that support IP multicast. It is important to remember that there is always one master router for an IP address shared by the redundancy group.

    Published: 2014-08-12