function _request_forwarding($ssh)
    {
        $request_channel = $ssh->_get_open_channel();
        if ($request_channel === false) {
            return false;
        }

        $packet = pack(
            'CNNa*C',
            NET_SSH2_MSG_CHANNEL_REQUEST,
            $ssh->server_channels[$request_channel],
            strlen('auth-agent-req@openssh.com'),
            'auth-agent-req@openssh.com',
            1
        );

        $ssh->channel_status[$request_channel] = NET_SSH2_MSG_CHANNEL_REQUEST;

        if (!$ssh->_send_binary_packet($packet)) {
            return false;
        }

        $response = $ssh->_get_channel_packet($request_channel);
        if ($response === false) {
            return false;
        }

        $ssh->channel_status[$request_channel] = NET_SSH2_MSG_CHANNEL_OPEN;
        $this->forward_status = self::FORWARD_ACTIVE;

        return true;
    }