Getnet Router GR-524WA User Manual
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93 5.4.5. Diagnostic Test The Diagnostic Test page shows the test results for the connectivity of the physical layer and protocol layer for both LAN and WAN sides. 5.4.6. Reboot Whenever you use the Web configuration to change system settings, the changes are initially placed in temporary storage. To save your change for future use, you have to click “Commit and Reboot” to reboot the router. If you have encountered some problems during the configurations, You can click the “Reset” button in the rear panel of the router over 10 seconds to reset default settings.
94 6. Troubleshooting 1. The LAN LED on the front panel does not light up. STEPS CORRECTIVE ACTION 1 Check the Ethernet cable connections between your ADSL2+ Router and the computer or hub. 2 Check for faulty Ethernet cables. 3 Make sure your computer’s Ethernet card is working properly. 4 If these steps fail to correct the problem, contact your local distributor for assistance. 2. The ADSL LED on the front panel does not light up. STEPS CORRECTIVE ACTION 1 Check the telephone wire and connections between ADSL2+ Router DSL port and the wall jack. 2 Make sure that the telephone company has checked your phone line and set it up for DSL service. 3 Reset your ADSL line to reinitialize your link to the DSLAM. 4 If these steps fail to correct the problem, contact your local distributor for assistance. 3. I cannot access the web management. STEPS CORRECTIVE ACTION 1 Make sure you are using the correct IP address of ADSL2+ Router. Check the IP address of ADSL2+ Router. 2 Your computer and ADSL2+ Router’s IP addresses must be on the same subnet for LAN access. 3 If you have changed ADSL2+ Router’s LAN IP address, then enter the new one as the URL.
95 The following procedures will help you to check the current IP Address setting of your computer. You can compare if your computer and router’s IP Addresses are in the same subnet. Step 1: Click “Start” and select “Run”. Step 2: Type in “cmd” and click “OK”. Step 3: Type ipconfig /all and click enter. z Your PC’s IP address is 192.168.1.111. z The PC’s Subnet Mask is 255.255.255.0. z Your PC’s MAC Address is the one entitled Physical Address (00-00-E2- 82-C3-AD).
96 4. I forget my login username and/or password. STEPS CORRECTIVE ACTION 1 If you have changed the password and have now forgotten it, you will need to upload the default configuration file. This will erase all custom configurations and restore all of the factory defaults including the password. 2 Press the Reset/WPS button for over five seconds, and then release it. When the Power LED begins to blink, the defaults have been restored. 3 The default username is “admin”. The default password is “admin”. The Password and Username fields are case-sensitive. Make sure that you enter the correct password and username using the proper casing. 4 It is highly recommended to change the default username and password. Make sure you store the username and password in a save place. 5. I cannot access the Web Management of the router after activating the ACL function. STEPS CORRECTIVE ACTION 1 When ACL is activated, you have to set the ACL rule for allowing some users to use some services. Check if you have set the rules. If not, all the users are forbidden using any of service from LAN or WAN. 2 If you cannot access the Web Management of the router, please press the Reset/WPS button over 5 seconds to restore to defaults. 3 After the router is restarting, log in the router with the default IP Address 192.168.1.1. 6. Initialization of the ADSL connection failed.
97 STEPS CORRECTIVE ACTION 1 Check the cable connections between the ADSL port and the wall jack. The ADSL LED on the rear panel of the router should be on. 2 Check VPI, VCI, type of encapsulation and type of multiplexing settings are the same as what you collected from your ISP. 3 Restart the router. If you still have problems, you may need to verify your VPI, VCI, type of encapsulation and type of multiplexing settings with the ISP. 7. I cannot get a WAN IP address from the ISP. STEPS CORRECTIVE ACTION 1 The ISP provides the WAN IP address after authenticating you. Authentication may be through the user name and password, the MAC address or the host name. 2 The username and password apply to PPPoE and PPoA encapsulation only. Make sure that you have entered the correct Service Type, User Name and Password (be sure to use the correct casing). 8. Internet connection disconnects. STEPS CORRECTIVE ACTION 1 Check the connection type. 2 If you use PPPoA or PPPoE encapsulation, check the idle time- out setting. 3 Contact your ISP.
98 7. Glossary 10Base-T It is an Ethernet standard for Local Area Network (LAN). 10Base-T uses a twisted pair cable with maximum length of 100 meters. AAL ATM Adaptation Layer that defines the rules governing segmentation and reassembly of data into cells. Different AAL types are suited to different traffic classes. ADSL Asymmetric Digital Subscriber Line, as its name showing, is an asymmetrical data transmission technology with high traffic rate downstream and low traffic rate upstream. ADSL technology satisfies the bandwidth requirement of applications, which demand “asymmetric” traffic, such as web surfing, file download and Video-on-demand (VOD). ATM Asynchronous Transfer Mode is a layer 2 protocol supporting high-speed asynchronous data with advanced traffic management and quality of service features. bps Bits per second, a standard measurement of digital transmission speeds. Bridge A device that connects two or more physical networks and forwards packets between them. Bridges can usually be made to filter packets, that is, to forward only certain traffic. Related devices are: repeaters which simply forward electrical signals from one cable to the other and full-fledged routers which make routing decisions based on several criteria. CPE Customer Premises Equipment, such as ADSL router, USB modem.
99 Default Gateway (Router) Every non-router IP device needs to configure a default gateway’s IP address. When the device sends out an IP packet, if the destination is not on the same network, the device has to send the packet to its default gateway, which will then send it out towards the destination. DHCP Dynamic Host Configuration Protocol, this protocol automatically gives every computer on your home network an IP address. DNS Server IP Address DNS stands for Domain Name System, which allows Internet servers to have a domain name (such as www. ADSLrouter.com) and one or more IP addresses (such as 192.34.45.8). A DNS server keeps a database of Internet servers and their respective domain names and IP addresses, so that when a domain name is requested (as in typing ADSLrouter.com into your Internet browser), the user is sent to the proper IP address. The DNS server IP address used by the computers on your home network is the location of the DNS server your ISP has assigned to you. DSL Digital Line Subscriber (DSL) technology provides high-speed access over twisted copper pair for connection to the Internet, LAN interfaces, and to DSL services such as video-on-demand, distance learning, and video conferencing. Ethernet It is a standard for computer networks. Ethernet networks are connected by special cables and hubs or switches, and move data around at up to 10/100 million bits per second (Mbps). FTP File Transfer Protocol. The Internet protocol (and program) used to transfer files between hosts. Idle Timeout
100 Idle Timeout is designed so that after there is no traffic to the Internet for a pre-configured amount of time, the connection will automatically be disconnected. ISP Internet Service Provider is a business that provides connectivity to the Internet for individuals and other businesses or organizations. ISP Gateway Address The ISP Gateway Address is an IP address for the Internet router located at the ISPs office. LAN Local Area Network is a group of computers and devices connected together in a relatively small area (such as a house or an office). Your home network is considered a LAN. MAC Address MAC stands for Media Access Control. A MAC address is the hardware address of a device connected to a network. The MAC address is a unique identifier for a device with an Ethernet interface. It is comprised of two parts: 3 bytes of data that corresponds to the Manufacturer ID (unique for each manufacturer), plus 3 bytes that are often used as the product’s serial number. MTU Maximum Transmission Unit NAT Network Address Translator is defined by RFC 1631. Enable a LAN network to use one set of IP address for internal traffic. A NAT box located where the LAN meets the Internet provides the necessary IP address translation. This helps provide a sort of firewall and allow for a wider address range to be used internally without danger of conflict. Using the router’s NAT capability, you can access the Internet from any computer on your home network without having to purchase more IP addresses from your ISP.
101 Port Network Clients (LAN PC) uses port numbers to distinguish one network application/protocol over another. Below is a list of common applications and protocol/port numbers: Application Protocol Port Number Telnet TCP 23 FTP TCP 21 SMTP TCP 25 POP3 TCP 110 H.323 TCP 1720 SNMP UCP 161 SNMP Trap UDP 162 HTTP TCP 80 PPTP TCP 1723 PC Anywhere TCP 5631 PC Anywhere UDP 5632 PPP PPP is the Point-to-Point-Protocol. The successor to SLIP, PPP provides router-to-router and host-to-network connections over both synchronous and asynchronous circuits. PPPoA (RFC 2364) The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol data grams over point-to-point links. This document describes the use of ATM Adaptation Layer 5 (AAL5) for framing PPP encapsulated packets. PPPoE (RFC 2516) This document describes how to build PPP sessions and encapsulate PPP packets over Ethernet. PPP over Ethernet (PPPoE) provides the ability to connect a network of hosts over a simple bridging access device to a remote Access Concentrator.
102 Protocol A protocol is a set of rules for interaction agreed upon between multiple parties so that when they interface with each other based on such a protocol, the interpretation of their behavior is well defined and can be made objectively, without confusion or misunderstanding. PVC Permanent Virtual Circuit, connection-oriented permanent leased line circuit between end-stations on a network over a separate ATM circuit. RFC Request for Comments. The document series, begun in 1969, which describes the Internet suite of protocols and related experiments. Not all RFCs describe Internet standards, but all Internet standards are written up as RFCs. RFC 1483 Multi-protocol encapsulation over AAL-5. Two encapsulation methods for carrying network interconnect traffic over ATM AAL-5. The first method allows multiplexing of multiple protocols over a single ATM virtual circuit. The protocol of a carried PDU is identified by prefixing the PDU by an IEEE 802.2 Logical Link Control (LLC) header. This method is in the following called LLC Encapsulation. The second method does higher-layer protocol multiplexing implicitly by ATM Virtual Circuits (VCs). It is in the following called VC Based Multiplexing. Router A system responsible for making decisions about which of several paths network (or Internet) traffic will follow. To do this, it uses a routing protocol to gain information about the network and algorithms to choose the best route based on several criteria known as routing metrics. Subnet Mask A subnet mask, which may be a part of the TCP/IP information provided by your ISP, is a set of four numbers (e.g. 255.255.255.0) configured like an IP address. It is used to create IP address numbers used only within a particular network (as opposed to valid IP address numbers recognized by the Internet, which must be assigned by InterNIC).