获取连接到VPN网络的机器的IP地址
本文关键字:机器 地址 IP 网络 连接 VPN 获取 | 更新日期: 2023-09-27 18:18:02
我需要知道连接到VPN的机器的IP地址。我使用了以下算法:
if (NetworkInterface.GetIsNetworkAvailable()) { // First check if any connections are present
NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();
bool vpnExists=false;
string ipAddr="?";
foreach (NetworkInterface Interface in interfaces)
{ // Loop through all interfaces present
if (Interface.OperationalStatus == OperationalStatus.Up)
{ // consider only if an interface is currently active
if (Interface.NetworkInterfaceType == NetworkInterfaceType.Tunnel) // refering to vpn
{ // vpn found
vpnExists=true;
foreach (UnicastIPAddressInformation ip in Interface.GetIPProperties().UnicastAddresses) {
// Program control reaches here without any problem
if (ip.Address.AddressFamily==AddressFamily.InterNetwork) { // this block does not execute as expected
ipAddr=ip.Address.ToString();
}
}
}
else
{ // vpn not found
continue; // Goto another interface
}
}
}
}
/*
Final state of variables:
vpnExists: true
ipAddr: "?"
*/
代码功能完美,直到VPN检查部分(对于我尝试过的所有网络),但不显示VPN检测后的IP地址。我不明白为什么语句(ip.Address.AddressFamily==AddressFamily.InterNetwork)
返回false,因为我相信这是获得IP地址的正确方式。
提前感谢。
更新:通过手动映射IP地址可以解决该问题。无论如何,感谢所有关心并帮助解决问题的人。
如果你的网络也支持IPv6,你应该检查两者,即,而不是
if (ip.Address.AddressFamily == AddressFamily.InterNetwork)
使用:
if (ip.Address.AddressFamily == AddressFamily.InterNetwork
|| ip.Address.AddressFamily == AddressFamily.InterNetworkV6)
您可以在MSDN上看到AddressFamily
枚举的所有值。