Try this..
string CompleteDPath = "ftp://192.168.1.1:3113/YourFolderName/" + filephoto;
string UName = "FTP UserName";
string PWD = "FTP Password";
fu_photo.SaveAs(Server.MapPath("images//") + filephoto);
WebRequest reqObj = WebRequest.Create(CompleteDPath);
reqObj.Method = WebRequestMethods.Ftp.UploadFile;
reqObj.Credentials = new NetworkCredential(UName, PWD);
FileStream streamObj = System.IO.File.OpenRead(Server.MapPath("Images//" + filephoto));
byte[] buffer = new byte[streamObj.Length + 1];
streamObj.Read(buffer, 0, buffer.Length);
streamObj.Close();
streamObj = null;
reqObj.GetRequestStream().Write(buffer, 0, buffer.Length);
reqObj = null;
Regards,
AARIF SHAIKH