vrrp_instance VI_1 {
    state BACKUP
    interface eth0
    virtual_router_id 51
    priority 50
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass YourVRRPPassword123
    }
    unicast_src_ip 192.168.1.202
    unicast_peer {
        192.168.1.201
    }
    virtual_ipaddress {
        192.168.1.210/24
    }
}