背景：我的程序啟動，并且必須獲取正在其上運行的計算機的IP地址。它是客戶端-服務器體系結構中的“服務器”，用于接收傳入的tcp-ip消息。我還應該添加機器：有可用的多IP地址正在運行Windows 2008 R2 Server這是獲取IP地址的代碼： public bool IsNetworkAvailable { get { return System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable(); } } public string thisIP { get; private set; } public void GetThisIP() { if (!string.IsNullOrEmpty(thisIP)) { return; } thisIP = "*"; if (IsNetworkAvailable) { using (System.Net.Sockets.Socket socket = new System.Net.Sockets.Socket( System.Net.Sockets.AddressFamily.InterNetwork, System.Net.Sockets.SocketType.Dgram, 0)) { socket.Connect("11.0.1.5", 65530); System.Net.IPEndPoint endPoint = socket.LocalEndPoint as System.Net.IPEndPoint; thisIP = endPoint.Address.ToString(); } } }這是錯誤消息：(0x80004005): A socket operation was attempted to an unreachable network 11.0.1.5:65530 at System.Net.Sockets.Socket.Connect(IPAddress[] addresses, Int32 port)
3 回答
catspeake
TA貢獻1111條經驗 獲得超0個贊
我假設特定的客戶端計算機比收到此錯誤的網絡有些故障。
引用@Stephen Cleary
此錯誤表明網絡未連接或配置不正確。這絕對是客戶端計算機上的錯誤，而不是服務器上的錯誤。您無法做很多事情來“解決”問題。您幾乎可以做的就是升級客戶端的網絡驅動程序并檢查連接問題（也許它們幾乎不在無線范圍內，或者以太網電纜缺少其鎖定選項卡）。
慕慕森
TA貢獻1856條經驗 獲得超17個贊
System.Net.NetworkInformation.UnicastIPAddressInformation mostSuitableIp = null;
var networkInterfaces = System.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces();
foreach (var network in networkInterfaces)
{
if (network.OperationalStatus != System.Net.NetworkInformation.OperationalStatus.Up)
{
continue;
}
var properties = network.GetIPProperties();
if (properties.GatewayAddresses.Count == 0)
{
continue;
}
if (mostSuitableIp != null)
{
break;
}
foreach (var address in properties.UnicastAddresses)
{
if (address.Address.AddressFamily != System.Net.Sockets.AddressFamily.InterNetwork)
{
continue;
}
if (System.Net.IPAddress.IsLoopback(address.Address))
{
continue;
}
if (mostSuitableIp == null && address.IsDnsEligible)
{
mostSuitableIp = address;
break;
}
}
}
thisIP = mostSuitableIp != null ? mostSuitableIp.Address.ToString() : "";- 3 回答
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