[c#] Get Client IP address using WCF

OperationContext context = OperationContext.Current;
MessageProperties properties = context.IncomingMessageProperties;
RemoteEndpointMessageProperty endpoint = properties[RemoteEndpointMessageProperty.Name] as RemoteEndpointMessageProperty;
string address = string.Empty;
//http://www.simosh.com/article/ddbggghj-get-client-ip-address-using-wcf-4-5-remoteendpointmessageproperty-in-load-balanc.html
if (properties.Keys.Contains(HttpRequestMessageProperty.Name))
{
    HttpRequestMessageProperty endpointLoadBalancer = properties[HttpRequestMessageProperty.Name] as HttpRequestMessageProperty;
    if (endpointLoadBalancer != null && endpointLoadBalancer.Headers["X-Forwarded-For"] != null)
        address = endpointLoadBalancer.Headers["X-Forwarded-For"];
}
if (string.IsNullOrEmpty(address))
{
    address = endpoint.Address;
}
 
 
 
-----------------------------------------------
 
private string GetIP()
{
   OperationContext context = OperationContext.Current;
   MessageProperties prop = context.IncomingMessageProperties;
   RemoteEndpointMessageProperty endpoint =
      prop[RemoteEndpointMessageProperty.Name] as RemoteEndpointMessageProperty;
   string ip = endpoint.Address;
 
   return ip ;
 
}