for _, vid := range []int{1002, 1003, 1004, 1005} {
		ift1, err := Interfaces()
		if err != nil {
			t.Fatal(err)
		}
		ti := &testInterface{local: local, remote: remote}
		if err := ti.setBroadcast(vid); err != nil {
			t.Skipf("test requires external command: %v", err)
		}
		if err := ti.setup(); err != nil {
			t.Fatal(err)
		} else {
			time.Sleep(3 * time.Millisecond)
		}