使用以下内容： -

 HttpRequest currentRequest = HttpContext.Current 。请求; 
字符串 clientIP = currentRequest.ServerVariables [  REMOTE_ADDR]; 

您尝试过什么？我什么都没想:(

如何在asp.net（C＃）中获取客户端IP。 [ ^ ]

Request.UserHostAddress为您提供客户端的IP地址

How to get IP address of client machine in ASP.NET?

[edit(zorgoz): case corrected]

Use the following :-

HttpRequest currentRequest = HttpContext.Current.Request;
String    clientIP = currentRequest.ServerVariables["REMOTE_ADDR"];

What have you tried? I suppose nothing :(
How to get client IP in asp.net(C#).[^]

Request.UserHostAddress gives you the client''s IP address