if intf.Flags&net.FlagUp != 0 {
		klog.V(4).Infof("Interface %v is up", intf.Name)
		return true
	}
	return false
}

func isLoopbackOrPointToPoint(intf *net.Interface) bool {
	return intf.Flags&(net.FlagLoopback|net.FlagPointToPoint) != 0
}

// getMatchingGlobalIP returns the first valid global unicast address of the given
// 'family' from the list of 'addrs'.

`

const (
	flagUp       = net.FlagUp | net.FlagBroadcast | net.FlagMulticast
	flagDown     = net.FlagBroadcast | net.FlagMulticast
	flagLoopback = net.FlagUp | net.FlagLoopback
	flagP2P      = net.FlagUp | net.FlagPointToPoint
)

func makeIntf(index int, name string, flags net.Flags) net.Interface {
	mac := net.HardwareAddr{0, 0x32, 0x7d, 0x69, 0xf7, byte(0x30 + index)}

	checkGetmac(t)

	ift, err := Interfaces()
	if err != nil {
		t.Fatal(err)
	}
	have := make(map[string]string)
	for _, ifi := range ift {
		if ifi.Flags&FlagLoopback != 0 {
			// no MAC address for loopback interfaces
			continue
		}
		have[ifi.Name] = ifi.HardwareAddr.String()
	}

	out, err := runCmd("getmac", "/fo", "list", "/v")
	if err != nil {