Welcome to Beetel Modems

Home > FAQs
 
1) What is NAT?
2) What is FIREWALL?
3) What is IP FILTERING?
4) What is MAC Filtering?
5) What is default Gateway?
6) Error Codes
 
 
1) What is NAT?

NAT stands for Network Address Translation/Network Address Translator. Each computer connected to the Internet needs to have a unique IP address. To use the global IP addresses more efficiently, computers belonging to a business can have “local” addresses. NAT would then allow connecting multiple “local” computers to the Internet using one IP address. Each NAT has a ‘table’ of local IP addresses and globally unique addresses by which the NAT box can translate the local IP addresses to global address and vice versa.
Back to Top
 
2) What is FIREWALL?

A firewall is a system designed to prevent unauthorized access to or from a private computer/network. It is highly recommended that all Internet users should have a firewall to protect their computer/network. As ADSL broadband service are always on? it is even more important. Many free firewall soft wares like ZoneAlarm; Sygate Personal Firewall etc are available on the Web for download.
Back to Top
 
3) What is IP FILTERING?

The IP filtering feature enables you to create rules that control the forwarding of incoming and outgoing data between your LAN and the Internet and within your LAN.
You can create IP filtering rules to block attempts by certain computers on your LAN to access certain types of data or Internet locations. You can also forward incoming access to computers on your LAN.

Back to Top
 
4) What is MAC Filtering?

MAC filtering rules can be created to control the forwarding of incoming and outgoing data between your LAN and the Internet and within your LAN. MAC filtering rules make decisions based on the structure of the "layer 2" data packets (e.g., Ethernet packets) received on the device interfaces, unlike IP filtering rules, which are based on the structure of "layer 3" (e.g., IP) packets.
Back to Top
 
5) What is default Gateway?

Default gateway is a common type of route. It defines the IP address where all data is forwarded unless an static IP route has been defined for the particular destination in question. Each time data is passed towards its destination from one Internet address to another, it is said to complete one hop.
On the ADSL router, a default gateway directs all outbound Internet traffic to a router at your ISP. This default gateway can be assigned automatically by your ISP whenever the device negotiates an Internet connection, or you can assign the default gateway manually.
Back to Top
 
6) Error Codes
Codes Meaning
600 An operation is pending.
601 The port handle is invalid.
602 The port is already open.
603 Caller's buffer is too small.
604 Wrong information specified.
605 Cannot set port information.
606 The port is not connected.
607 The event is invalid.
608 The device does not exist.
609 The device type does not exist.
610 The buffer is invalid.
611 The route is not available.
612 The route is not allocated.
613 Invalid compression specified.
614 Out of buffers.
615 The port was not found.
616 An asynchronous request is pending.
617 The port or device is already disconnecting.
618 The port is not open.
619 The port is disconnected.
620 There are no endpoints.
621 Cannot open the phone book file.
622 Cannot load the phone book file.
623 Cannot find the phone book entry.
624 Cannot write the phone book file.
625 Invalid information found in the phone book.
626 Cannot load a string.
627 Cannot find key.
628 The port was disconnected.
629 The port was disconnected by the remote machine.
630 The port was disconnected due to hardware failure.
631 The port was disconnected by the user.
632 The structure size is incorrect.
633 The port is already in use or is not configured for Remote Access dialout.
634 Cannot register your computer on the remote network.
635 Unknown error.
636 The wrong device is attached to the port.
637 The string could not be converted.
638 The request has timed out.
639 No asynchronous net available.
640 A NetBIOS error has occurred.
641 The server cannot allocate NetBIOS resources needed to support the client.
642 One of your NetBIOS names is already registered on the remote network.
643 A network adapter at the server failed.
644 You will not receive network message popups.
645 Internal authentication error.
646 The account is not permitted to log on at this time of day.
647 The account is disabled.
648 The password has expired.
649 The account does not have Remote Access permission.
650 The Remote Access server is not responding.
651 Your modem (or other connecting device) has reported an error.
652 Unrecognized response from the device.
653 A macro required by the device was not found in the device .INF file section.
654 A command or response in the device .INF file section refers to an undefined macro.
655 The macro was not found in the device .INF file section.
656 The macro in the device .INF file section contains an undefined macro.
657 The device .INF file could not be opened.
658 The device name in the device .INF or media .INI file is too long.
659 The media .INI file refers to an unknown device name.
660 The device .INF file contains no responses for the command.
661 The device .INF file is missing a command.
662 Attempted to set a macro not listed in device .INF file section.
663 The media .INI file refers to an unknown device type.
664 Cannot allocate memory.
665 The port is not configured for Remote Access.
666 Your modem (or other connecting device) is not functioning.
667 Cannot read the media .INI file.
668 The connection dropped.
669 The usage parameter in the media .INI file is invalid.
670 Cannot read the section name from the media .INI file.
671 Cannot read the device type from the media .INI file.
672 Cannot read the device name from the media .INI file.
673 Cannot read the usage from the media .INI file.
674 Cannot read the maximum connection BPS rate from the media .INI file.
675 Cannot read the maximum carrier BPS rate from the media .INI file.
676 The line is busy.
 
Codes Meaning
677 A person answered instead of a modem.
678 There is no answer.
679 Cannot detect carrier.
680 There is no dial tone.
681 General error reported by device.
682 ERROR WRITING SECTIONNAME
683 ERROR WRITING DEVICETYPE
684 ERROR WRITING DEVICENAME
685 ERROR WRITING MAXCONNECTBPS
686 ERROR WRITING MAXCARRIERBPS
687 ERROR WRITING USAGE
688 ERROR WRITING DEFAULTOFF
689 ERROR READING DEFAULTOFF
690 ERROR EMPTY INI FILE
691 Access denied because username and/or password is invalid on the domain.
692 Hardware failure in port or attached device.
693 ERROR NOT BINARY MACRO
694 ERROR DCB NOT FOUND
695 ERROR STATE MACHINES NOT STARTED
696 ERROR STATE MACHINES ALREADY STARTED
697 ERROR PARTIAL RESPONSE LOOPING
698 A response keyname in the device .INF file is not in the expected format.
699 The device response caused buffer overflow.
700 The expanded command in the device .INF file is too long.
701 The device moved to a BPS rate not supported by the COM driver.
702 Device response received when none expected.
703 ERROR INTERACTIVE MODE
704 ERROR BAD CALLBACK NUMBER
705 ERROR INVALID AUTH STATE
706 ERROR WRITING INITBPS
707 X.25 diagnostic indication.
708 The account has expired.
709 Error changing password on domain.
710 Serial overrun errors were detected while communicating with your modem.
711 RasMan initialization failure. Check the event log.
712 Biplex port is initializing. Wait a few seconds and redial.
713 No active ISDN lines are available.
714 Not enough ISDN channels are available to make the call.
715 Too many errors occurred because of poor phone line quality.
716 The Remote Access IP configuration is unusable.
717 No IP addresses are available in the static pool of Remote Access IP addresses.
718 PPP timeout.
719 PPP terminated by remote machine.
720 No PPP control protocols configured.
721 Remote PPP peer is not responding.
722 The PPP packet is invalid.
723 The phone number, including prefix and suffix, is too long.
724 The IPX protocol cannot dial-out on the port because the computer is an IPX router.
725 The IPX protocol cannot dial-in on the port because the IPX router is not installed.
726 The IPX protocol cannot be used for dial-out on more than one port at a time.
727 Cannot access TCPCFG.DLL.
728 Cannot find an IP adapter bound to Remote Access.
729 SLIP cannot be used unless the IP protocol is installed.
730 Computer registration is not complete.
731 The protocol is not configured.
732 The PPP negotiation is not converging.
733 The PPP control protocol for this network protocol is not available on the server.
734 The PPP link control protocol terminated.
735 The requested address was rejected by the server.
736 The remote computer terminated the control protocol.
737 Loop back detected.
738 The server did not assign an address.
739 The remote server cannot use the Windows NT encrypted password.
740 The TAPI devices configured for Remote Access failed to initialize or were not installed correctly.
741 The local computer does not support encryption.
742 The remote server does not support encryption.
743 The remote server requires encryption.
744 Cannot use the IPX net number assigned by the remote server. Check the event log.
752 A syntax error was encountered while processing a script.
769 The specific destination is not reachable. (According to Microsoft this behavior may occur if the network card in your computer is not turned on [enabled].)
Back to Top