ifi.Flags |= FlagBroadcast | FlagMulticast
			case windows.IF_TYPE_PPP, windows.IF_TYPE_TUNNEL:
				ifi.Flags |= FlagPointToPoint | FlagMulticast
			case windows.IF_TYPE_SOFTWARE_LOOPBACK:
				ifi.Flags |= FlagLoopback | FlagMulticast
			case windows.IF_TYPE_ATM:
				ifi.Flags |= FlagBroadcast | FlagPointToPoint | FlagMulticast // assume all services available; LANE, point-to-point and point-to-multipoint

				if !ok {
					ifc.HardwareAddr = ifc.HardwareAddr[:i]
					break
				}
			}
		}

		ifc.Flags = FlagUp | FlagRunning | FlagBroadcast | FlagMulticast
	} else {
		ifc.Flags = FlagUp | FlagRunning | FlagMulticast | FlagLoopback
	}

	return ifc, nil
}

func interfaceCount() (int, error) {
	d, err := os.Open(netdir + "/ipifc")
	if err != nil {
		return -1, err
	}

	Name         string       // e.g., "en0", "lo0", "eth0.100"
	HardwareAddr HardwareAddr // IEEE MAC-48, EUI-48 and EUI-64 form
	Flags        Flags        // e.g., FlagUp, FlagLoopback, FlagMulticast
}

type Flags uint

const (
	FlagUp           Flags = 1 << iota // interface is administratively up
	FlagBroadcast                      // interface supports broadcast access capability

	switch network {
	case "ip", "ip4", "ip6":
	default:
		return nil, errNoAvailableAddress
	}
	if ifi == nil || ifi.Flags&net.FlagUp == 0 || ifi.Flags&net.FlagMulticast == 0 {
		return nil, errNoAvailableAddress
	}
	ip, ok := hasRoutableIP(network, ifi)
	if !ok {
		return nil, errNoAvailableAddress
	}
	return ip, nil
}

		{"Error", Type, 0},
		{"FileConn", Func, 0},
		{"FileListener", Func, 0},
		{"FilePacketConn", Func, 0},
		{"FlagBroadcast", Const, 0},
		{"FlagLoopback", Const, 0},
		{"FlagMulticast", Const, 0},
		{"FlagPointToPoint", Const, 0},
		{"FlagRunning", Const, 20},
		{"FlagUp", Const, 0},
		{"Flags", Type, 0},
		{"HardwareAddr", Type, 0},
		{"IP", Type, 0},
		{"IPAddr", Type, 0},