Я использую NetworkInterface.getNetworkInterfaces() для запроса сетевых интерфейсов на моей машине. По сути, я пытаюсь найти сетевые карты. Обычно они называются что-то вроде eth0, eth1 и т. д.
Он отлично работает на Win XP и даже Vista с небольшой фильтрацией.
Я только что заметил, что в некоторых конфигурациях Windows 7 я получаю большое количество перечисленных сетевых адаптеров. Намного больше, чем на xp и vista. У меня настроена только одна карта, но, похоже, у меня есть три разных сетевых интерфейса.
- Intel(R) 82567LM-3 Гигабитное сетевое соединение
- Intel(R) 82567LM-3 Gigabit Network Connection-QoS Packet Scheduler-0000
- Intel(R) 82567LM-3 Gigabit Network Connection-WFP LightWeight Filter-0000
Зачем 3 разных очка по сути одно и то же.
У меня также есть шесть записей для чего-то под названием WAN MINIPORT. (См. ниже вывод)
Я могу их отфильтровать, но, конечно же, такое количество дерьма снижает производительность. Кто-нибудь знает, почему эти записи создаются и как их минимизировать?
В качестве примера в моей системе я написал такой код
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Arrays;
import java.util.Collections;
import java.util.Enumeration;
import static java.lang.System.out;
public class ListNetsEx {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Enumeration<NetworkInterface> nets;
try {
nets = NetworkInterface.getNetworkInterfaces();
for (NetworkInterface netint : Collections.list(nets))
displayInterfaceInformation(netint);
} catch (SocketException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
// TODO Auto-generated method stub
out.printf("Display name: %s\n", netint.getDisplayName());
out.printf("Name: %s\n", netint.getName());
Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
for (InetAddress inetAddress : Collections.list(inetAddresses)) {
out.printf("InetAddress: %s\n", inetAddress);
}
out.printf("Up? %s\n", netint.isUp());
out.printf("Loopback? %s\n", netint.isLoopback());
out.printf("PointToPoint? %s\n", netint.isPointToPoint());
out.printf("Supports multicast? %s\n", netint.supportsMulticast());
out.printf("Virtual? %s\n", netint.isVirtual());
out.printf("Hardware address: %s\n",
Arrays.toString(netint.getHardwareAddress()));
out.printf("MTU: %s\n", netint.getMTU());
out.printf("\n");
}
}
В Windows 7 вывод
Display name: Software Loopback Interface 1 Name: lo InetAddress: /0:0:0:0:0:0:0:1 InetAddress: /127.0.0.1 Up? true Loopback? true PointToPoint? false Supports multicast? true Virtual? false Hardware address: [] MTU: -1 Display name: WAN Miniport (SSTP) Name: net0 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (IKEv2) Name: net1 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (L2TP) Name: net2 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (PPTP) Name: net3 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (PPPOE) Name: ppp0 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (IPv6) Name: eth0 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (Network Monitor) Name: eth1 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (IP) Name: eth2 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: RAS Async Adapter Name: ppp1 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: Intel(R) 82567LM-3 Gigabit Network Connection Name: eth3 InetAddress: /fe80:0:0:0:b1b1:7531:17b1:bf26%11 InetAddress: /172.24.9.148 Up? true Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: [120, 43, -53, 125, -80, 74] MTU: 1500 Display name: Microsoft ISATAP Adapter Name: net4 Up? false Loopback? false PointToPoint? true Supports multicast? false Virtual? false Hardware address: [0, 0, 0, 0, 0, 0, 0, -32] MTU: 1280 Display name: Teredo Tunneling Pseudo-Interface Name: net5 InetAddress: /fe80:0:0:0:e0:0:0:0%13 Up? false Loopback? false PointToPoint? true Supports multicast? false Virtual? false Hardware address: [0, 0, 0, 0, 0, 0, 0, -32] MTU: 1280 Display name: Microsoft ISATAP Adapter #2 Name: net6 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: Intel(R) 82567LM-3 Gigabit Network Connection-QoS Packet Scheduler-0000 Name: eth4 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: Intel(R) 82567LM-3 Gigabit Network Connection-WFP LightWeight Filter-0000 Name: eth5 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (Network Monitor)-QoS Packet Scheduler-0000 Name: eth6 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (IP)-QoS Packet Scheduler-0000 Name: eth7 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1 Display name: WAN Miniport (IPv6)-QoS Packet Scheduler-0000 Name: eth8 Up? false Loopback? false PointToPoint? false Supports multicast? true Virtual? false Hardware address: null MTU: -1
