asp.net(C#)怎么取得访问者的ip地址呢？

Question

如题!

Answer 1

wmi
用system.management.managementobject.Invoke()来执行下面的对象进行配置
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/win32_networkadapterconfiguration.asp

Answer 2

穿过代理服务器取远程用户真实IP地址： 
if(Request.ServerVariables["HTTP_VIA"]!=null){ 
string user_IP=Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString(); 
}else{ 
string user_IP=Request.ServerVariables["REMOTE_ADDR"].ToString(); 
} 

Answer 3

纠正一下：
string user_IP = "";
if(Request.ServerVariables["HTTP_VIA"] != null){ 
   user_IP = Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString(); 
}else{ 
   user_IP = Request.ServerVariables["REMOTE_ADDR"].ToString(); 
}