VRRP and ARP for IPv4
The master for a given VR responds to ARP requests for the VIPs with the VR's assigned MAC address. The virtual MAC address is also used as the source MAC address for the periodic advertisements sent by the current master.
The VRRP router responds to ARP requests for non-VIPs (IP addresses on a VLAN interface that are not configured as VIPs for any VR on that VLAN) with the system MAC address.