code: public void callRpcNaked(S request, T response, String ipAddress) throws RpcException {
          Xdr xdr = new Xdr(_maximumRequestSize);
          request.marshalling(xdr);
          response.unmarshalling(callRpc(ipAddress, xdr, request.isUsePrivilegedPort()));
      }
docs: Make the call to a specified IP address.
  
  @param request
  The request to send.
  @param response
  A response to hold the returned data.
  @param ipAddress
  The IP address to use for communication.
  @throws RpcException