netDebug.append("\t\taddress ");
while (addresses.hasMoreElements()) {
netDebug.append("[").append(addresses.nextElement()).append("] ");
}
netDebug.append('\n');
netDebug.append("\t\tmtu [").append(net.getMTU()).append("] multicast [").append(net.supportsMulticast()).append("] ptp [").append(net.isPointToPoint())
.append("] loopback [").append(net.isLoopback()).append("] up [").append(net.isUp()).append("] virtual [").append(net.isVirtual()).append("]")
.append('\n');
Enumeration<NetworkInterface> subInterfaces = net.getSubInterfaces();
if (subInterfaces != null && subInterfaces.hasMoreElements()) {