C# IIS Request.UserHostAddress 返回 IPV6 (::1)，即使禁用 IPV6
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IIS Request.UserHostAddress returning IPV6 (::1), even when IPV6 disabled
提问by maxp
In the properties section of my network card, on windows server 2008, i have IPV6 disabled, leaving only IPV4 enabled.
在我的网卡的属性部分，在 Windows Server 2008 上，我禁用了 IPV6，只启用了 IPV4。
However in ASP.NET, Request.UserHostAddress returns '::1', an IPV6 address.
但是在 ASP.NET 中，Request.UserHostAddress 返回 '::1'，一个 IPV6 地址。
Has anyone got any idea how to revert back to IPV4?
有没有人知道如何恢复到 IPV4？
采纳答案by Miguel Ventura
If you're connecting to localhost (::1 / 127.0.0.1), you're not using the network card that your server has, but rather like a virtual card that windows has. I don't think there is anyway to configure the loopback card and removing IPv6 from it, not without removing support from the whole system, but in Win2008 you probably can't do that anymore.
如果您连接到 localhost (::1 / 127.0.0.1)，则您使用的不是服务器的网卡，而是 Windows 的虚拟网卡。我认为无论如何都不需要配置环回卡并从中删除 IPv6，不是不删除整个系统的支持，但在 Win2008 中你可能不能再这样做了。
You can verify that your physical card isn't being used by running network packet capturing utils. In windows, you can never sniff out the traffic that walks the virtual loopback card.
您可以通过运行网络数据包捕获实用程序来验证您的物理卡未被使用。在 Windows 中，您永远无法嗅出经过虚拟环回卡的流量。
That said, should you access from a different machine (through a connection that will be passing through your physical card), you should see an IPv4 address being returned by Request.UserHostAddress
也就是说，如果您从另一台机器访问（通过将通过您的物理卡的连接），您应该看到一个 IPv4 地址由 Request.UserHostAddress
回答by David
The 4 Guys from Rolla website has a solution here, which I've used in my app.
来自 Rolla 网站的 4 Guys 在这里有一个解决方案，我在我的应用程序中使用过。
Update:
更新：
Just in case this link goes dead, here is code based on this link:
以防万一此链接失效，这里是基于此链接的代码：
public string GetIpAddress()
{
string ipAddressString = HttpContext.Current.Request.UserHostAddress;
if (ipAddressString == null)
return null;
IPAddress ipAddress;
IPAddress.TryParse(ipAddressString, out ipAddress);
// If we got an IPV6 address, then we need to ask the network for the IPV4 address
// This usually only happens when the browser is on the same machine as the server.
if (ipAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6)
{
ipAddress = System.Net.Dns.GetHostEntry(ipAddress).AddressList
.First(x => x.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork);
}
return ipAddress.ToString();
}
回答by Rageesh Geetha Raman
Go to Start -> click on Control Panel -> click on
View network status and tasksin Control Panel window -> click onchange adapter settingsinNetwork and Sharing Centerwindow.Network Connectionswindow will appear. Here you right click on thenetwork adapter(can be wireless adapter or wired Ethernet adapter) that you wish to disable IPv6 and clickProperties.In the
network adapter propertieswindow, untickInternet Protocol Version 6 (TCP/IPv6)and click OK.Type
regeditin command prompt to launch registry editor, proceed to locate following registry item in Registry editor.HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\DisabledComponentsIf the
DisabledComponentsitem is unavailable, you must create it in following format by going to Edit -> New -> DWORD (32-bit) Value and set the value to0xffffffff(just typeffffffff). This will disable all IPv6 features except the IPv6 loopback interface, finally clickOK.Restart the computer.
转到开始 -> 单击控制面板 ->
View network status and tasks在控制面板窗口中单击 ->change adapter settings在Network and Sharing Center窗口中单击。Network Connections将出现窗口。在此处右键单击network adapter要禁用 IPv6的（可以是无线适配器或有线以太网适配器），然后单击Properties。在
network adapter properties窗口中，取消勾选Internet Protocol Version 6 (TCP/IPv6)并单击确定。键入
regedit命令提示符以启动注册表编辑器，继续在注册表编辑器中找到以下注册表项。HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\DisabledComponents如果该
DisabledComponents项目不可用，则必须通过转到 Edit -> New -> DWORD (32-bit) Value 并将值设置为0xffffffff（只需键入ffffffff）以以下格式创建它。这将禁用除 IPv6 环回接口之外的所有 IPv6 功能，最后单击OK。重新启动计算机。
