Asp.net获取客户端的IP地址排除::1

public static string GetClientIPv4Address()

{

string ipv4 = String.Empty;

foreach (IPAddress ip in Dns.GetHostAddresses(GetClientIP()))

{

if (ip.AddressFamily.ToString() == "InterNetwork")

{

ipv4 = ip.ToString();

break;

}

}

if (ipv4 != String.Empty)

{

return ipv4;

}

// 利用 Dns.GetHostEntry 方法，由获取的 IPv6 位址反查 DNS 纪录，

// 再逐一判断何者为 IPv4 协议，即可转为 IPv4 位址。

foreach (IPAddress ip in Dns.GetHostEntry(GetClientIP()).AddressList)

//foreach (IPAddress ip in Dns.GetHostAddresses(Dns.GetHostName()))

{

if (ip.AddressFamily.ToString() == "InterNetwork")

{

ipv4 = ip.ToString();

break;

}

}

return ipv4;

}

public static string GetClientIP()

{

if (null == HttpContext.Current.Request.ServerVariables["HTTP_VIA"])

{

return HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];

}

else

{

return HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

}

}