TL-ER5120 Gigabit Load Balance Broadband Router REV2.0.
COPYRIGHT & TRADEMARKS Specifications are subject to change without notice. is a registered trademark of TP-LINK TECHNOLOGIES CO., LTD. Other brands and product names are trademarks of their respective holders. No part of the specifications may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from TP-LINK TECHNOLOGIES CO., LTD. Copyright © 2013 TP-LINK TECHNOLOGIES CO., LTD. All rights reserved. http://www.tp-link.
Продукт сертифіковано згідно с правилами системи УкрСЕПРО на відповідність вимогам нормативних документів та вимогам, що передбачені чинними законодавчими актами України. Safety Information z When product has power button, the power button is one of the way to shut off the product; When there is no power button, the only way to completely shut off power is to disconnect the product or the power adapter from the power source. z Don’t disassemble the product, or make repairs yourself.
CONTENTS Package Contents ..................................................................................................................1 Chapter 1 About this Guide ...................................................................................................2 1.1 Intended Readers ..................................................................................................................2 1.2 Conventions ......................................................................................
3.4 3.5 3.6 3.3.3 Session Limit ...........................................................................................................58 3.3.4 Load Balance...........................................................................................................59 3.3.5 Routing ....................................................................................................................64 Firewall............................................................................................
5.1 Configuration......................................................................................................................125 5.2 Interface Mode ...................................................................................................................128 5.3 Online Help ........................................................................................................................129 5.4 Command Introduction................................................................
Package Contents The following items should be found in your box: ¾ One TL-ER5120 Router ¾ One Power Cord ¾ One Console Cable ¾ Two mounting brackets and other fittings ¾ Quick Installation Guide ¾ Resource CD Note: Make sure that the package contains the above items. If any of the listed items are damaged or missing, please contact with your distributor.
Chapter 1 About this Guide This User Guide contains information for setup and management of TL-ER5120 router. Please read this guide carefully before operation. 1.1 Intended Readers This Guide is intended for Network Engineer and Network Administrator. 1.2 Conventions In this Guide the following conventions are used: ¾ The router or TL-ER5120 mentioned in this Guide stands for TL-ER5120 Gigabit Load Balance Broadband Router without any explanation.
Appendix A Hardware Specifications Lists the hardware specifications of this router. Appendix B FAQ Provides the possible solutions to the problems that may occur during the installation and operation of the router. Appendix C Glossary Lists the glossary used in this guide.
Chapter 2 Introduction Thanks for choosing the Gigabit Load Balance Broadband Router TL-ER5120. 2.
+ Featured Link Backup to switch all the new sessions from dropped line automatically to another for keeping an always on-line network. z Easy-to-use + Providing easy-to-use GUI with clear configuration steps and detailed help information for the users to configure the router simply. + Helping administrators to monitor the whole network status and take actions to malfunctions according to the recorded log information. + Supporting remote management to manage the router from remote places. 2.
¾ Supports Access Control ¾ Supports Attack Defense ¾ Supports IP-MAC Binding ¾ Supports GARP (Gratuitous ARP) ¾ Deploys One-Click restricting of IM/P2P applications 2.3 Appearance 2.3.1 Front Panel The front panel of TL-ER5120 is shown as the following figure.
z z Interface Description Interface Port Description WAN 1~4 The WAN port is for connecting the router to a DSL/Cable modem or Ethernet by the RJ45 cable LAN 2~5 The LAN port is for connecting the router to the local PCs or switches by the RJ45 cable DMZ 5 The DMZ port is for connecting the router to the servers Console / The Console port is for connecting with the serial port of a computer or terminal to monitor and configure the router Reset button Use the button to restore the router to
Chapter 3 Configuration 3.1 Network 3.1.1 Status The Status page shows the system information, the port connection status and other information related to this router. Choose the menu Network→Status to load the following page.
3.1.2 System Mode The TL-ER5120 router can work in three modes: NAT, Non-NAT and Classic. If your router is hosting your local network’s connection to the Internet with a network topology as the Figure 3-2 shows, you can set it to NAT mode.
If your router is connected in a combined network topology as the Figure 3-4 shows, you can set it to Classic Mode. Figure 3-4 Network Topology – Classic Mode Choose the menu Network→System Mode to load the following page. Figure 3-5 System Mode You can select a System Mode for your router according to your network need.
then the subnet of LAN port is 192.168.0.0/24. The packet with 192.168.0.123 as its source IP address can be transported by NAT, whereas the packet with 20.31.76.80 as its source IP address will be dropped. z Non-NAT Mode In this mode, the router functions as the traditional Gateway and forwards the packets via routing protocol. The Hosts in different subnets can communicate with one another via the routing rules whereas no NAT is employed.
¾ WAN Mode WAN Ports: Select the total number of WAN ports you prefer to use. And the router will adjust the physical ports accordingly, which can be illustrated on the following port sketch. Note: ● By default, TL-ER5120 is set to work in the mode of dual WAN ports. ● Any change to the number of WAN ports may lead to a loss of current configurations. Please be sure to backup your configurations in advance. ● The DMZ port will not be available if four WAN ports are enabled. 3.1.3.
Choose the menu Network→WAN→WAN1 to load the configuration page. 1) Static IP If a static IP address has been provided by your ISP, please choose the Static IP connection type to configure the parameters for WAN port manually. Figure 3-7 WAN – Static IP The following items are displayed on this screen: ¾ Static IP Connection Type: Select Static IP if your ISP has assigned a static IP address for your computer. IP Address: Enter the IP address assigned by your ISP.
Primary DNS: Enter the IP address of your ISP’s Primary DNS (Domain Name Server). If you are not clear, please consult your ISP. It’s not allowed to access the Internet via domain name if the Primary DNS field is blank. Secondary DNS: Optional. If a Secondary DNS Server address is available, enter it. Upstream Bandwidth: Specify the bandwidth for transmitting packets on the port. Downstream Specify the bandwidth for receiving packets on the port.
The following items are displayed on this screen: ¾ Dynamic IP Connection Type: Select Dynamic IP if your ISP assigns the IP address automatically. Click to get the IP address from your ISP’s server. Click to release the current IP address of WAN port. Host Name: Optional. This field allows you to give a name for the router. It's blank by default. MTU: MTU (Maximum Transmission Unit) is the maximum data unit transmitted by the physical network.
¾ Dynamic IP Status Status: Displays the status of obtaining an IP address from your ISP. z “Disabled” indicates that the Dynamic IP connection type is not applied. z “Connecting” indicates that the router is obtaining the IP parameters from your ISP. z “Connected” indicates that the router has successfully obtained the IP parameters from your ISP. z “Disconnected” indicates that the IP address has been manually released or the request of the router gets no response from your ISP.
3) PPPoE If your ISP (Internet Service Provider) has provided the account information for the PPPoE connection, please choose the PPPoE/Russian PPPoE connection type (Used mainly for DSL Internet service).
¾ PPPoE Settings Connection Type: Select PPPoE/Russian PPPoE if your ISP provides xDSL Virtual Dial-up connection. Click to dial-up to the Internet and obtain the IP address. Click to disconnect the Internet connection and release the current IP address. Account Name: Enter the Account Name provided by your ISP. If you are not clear, please consult your ISP. Password: Enter the Password provided by your ISP.
Service Name: Optional. Enter the Service Name provided by your ISP. It's null by default. Primary DNS: Enter the IP address of your ISP’s Primary DNS. Secondary DNS: Optional. Enter the IP address of your ISP’s Secondary DNS. Secondary Connection: Here allows you to configure the secondary connection. Dynamic IP and Static IP connection types are provided. Connection Type: Select the secondary connection type. Options include Disable, Dynamic IP and Static IP.
¾ PPPoE Status Status: Displays the status of PPPoE connection. z “Disabled” indicates that the PPPoE connection type is not applied. z “Connecting” indicates that the router is obtaining the IP parameters from your ISP. z “Connected” indicates that the router has successfully obtained the IP parameters from your ISP. z “Disconnected” indicates that the connection has been manually terminated or the request of the router has no response from your ISP.
4) L2TP If your ISP (Internet Service Provider) has provided the account information for the L2TP connection, please choose the L2TP/Russian L2TP connection type.
The following items are displayed on this screen: ¾ L2TP Settings Connection Type: Select L2TP/Russian L2TP if your ISP provides a L2TP connection. Click to dial-up to the Internet and obtain the IP address. Click to disconnect the Internet connection and release the current IP address. Account Name: Enter the Account Name provided by your ISP. If you are not clear, please consult your ISP. Password: Enter the Password provided by your ISP.
IP Address: If Static IP is selected, configure the IP address of WAN port. If Dynamic IP is selected, the IP address of WAN port obtained is displayed. Subnet Mask: If Static IP is selected, configure the subnet mask of WAN port. If Dynamic IP is select, the subnet mask of WAN port obtained is displayed. Default Gateway: If Static IP is selected, configure the default gateway. If Dynamic IP is selected, the obtained default gateway is displayed.
5) Primary DNS: Displays the IP address of your ISP’s Primary DNS. Secondary DNS: Displays the IP address of your ISP’s Secondary DNS. PPTP If your ISP (Internet Service Provider) has provided the account information for the PPTP connection, please choose the PPTP/Russian PPTP connection type.
¾ PPTP Settings Connection Type: Select PPTP/Russian PPTP if your ISP provides a PPTP connection. Click to dial-up to the Internet and obtain the IP address. Click to disconnect the Internet connection and release the current IP address. Account Name: Enter the Account Name provided by your ISP. If you are not clear, please consult your ISP. Password: Enter the Password provided by your ISP. Server IP: Enter the Server IP provided by your ISP.
Subnet Mask: If Static IP is selected, configure the subnet mask of WAN port. If Dynamic IP is select, the subnet mask of WAN port obtained is displayed. Default Gateway: If Static IP is selected, configure the default gateway. If Dynamic IP is selected, the obtained default gateway is displayed. Primary DNS/Secondary DNS: If Static IP is selected, configure the DNS. If Dynamic IP is selected, the obtained DNS is displayed.
6) BigPond If your ISP (Internet Service Provider) has provided the account information for the BigPond connection, please choose the BigPond connection type. Figure 3-12 WAN – Bigpond The following items are displayed on this screen: ¾ BigPond Settings Connection Type: Select BigPond if your ISP provides a BigPond connection. Click to dial-up to the Internet and obtain the IP address. Click to disconnect the Internet connection and release the current IP address.
Password: Enter the Password provided by your ISP. If you are not clear, please consult your ISP. Auth Server: Enter the address of authentication server. It can be IP address or server name. Auth Domain: Enter the domain name of authentication server. It's only required when the address of Auth Server is a server name. Auth Mode: You can select the proper Active mode according to your need.
correct and your network is connected well. Consult your ISP if this problem remains. IP Address: Displays the IP address assigned by your ISP. Subnet Mask: Displays the Subnet Mask assigned by your ISP. Default Gateway: Displays the IP address of the default gateway assigned by your ISP. Note: To ensure the BigPond connection re-established normally, please restart the connection at least 5 seconds after the connection is off. 3.1.4 LAN 3.1.4.
Note: If the LAN IP address is changed, you must use the new IP address to log into the router. To guarantee a normal communication, be sure to set the Gateway address and the Subnet Mask of the Hosts on the LAN to the new LAN IP address and the Subnet Mask of the router. 3.1.4.2 DHCP The router with its DHCP (Dynamic Host Configuration Protocol) server enabled can automatically assign an IP address to the computers in the LAN. Choose the menu Network→LAN→DHCP to load the following page.
Lease Time: Specify the length of time the DHCP server will reserve the IP address for each computer. After the IP address expired, the client will be automatically assigned a new one. Default Gateway: Optional. Enter the Gateway address to be assigned. It is recommended to enter the IP address of the LAN port of the router. Default Domain: Optional. Enter the domain name of your network. Primary DNS: Optional. Enter the Primary DNS server address provided by your ISP.
Figure 3-16 DHCP Reservation The following items are displayed on this screen: ¾ DHCP Reservation MAC Address: Enter the MAC address of the computer for which you want to reserve the IP address. IP Address: Enter the reserved IP address. Description: Optional. Enter a description for the entry. Up to 28 characters can be entered. Status: ¾ Activate or Inactivate the corresponding entry.
3.1.5 DMZ DMZ (Demilitarized Zone) is a network which has fewer default firewall restrictions than the LAN does. TL-ER5120 provides a DMZ port to allow all the local hosts connected to this port to be exposed to the Internet for some special-purpose services, such as such as Internet gaming and video-conferencing. The DMZ physical port can work in Public mode and Private mode. In Public mode, the DMZ port allows the Hosts in DMZ to directly communicate with Internet via routing mode using public IP address.
Choose the menu Network→DMZ→DMZ to load the following page. Figure 3-19 DMZ The following items are displayed on this screen: ¾ DMZ Status: Activate or inactivate this entry. The DMZ port functions as a normal LAN port when it’s disabled. Mode: Select the mode for DMZ port to control the connection way among DMZ, LAN and Internet. Options include: Public and Private. IP Address: Enter the IP address of DMZ port. Subnet Mask: Enter the Subnet Mask of DMZ port.
Set the MAC Address for LAN port: In a complex network topology with all the ARP bound devices, if you want to change to use TL-ER5120 instead of the current router in a network node, you can just set the MAC address of TL-ER5120 ‘s LAN port the same to the MAC address of the previous router, which can avoid all the devices under this network node to update their ARP binding tables.
MAC Clone: It’s only available for WAN port. Click the button to restore the MAC address to the factory default value or click the button to clone the MAC address of the PC you are currently using to configure the router. Then click to apply. Note: To avoid a conflict of MAC address on the LAN, it’s not allowed to set the MAC address of the router’s LAN port to the MAC address of the current management PC. 3.1.
The following items are displayed on this screen: ¾ Statistics Unicast: Displays the number of normal unicast packets received or transmitted on the port. Broadcast: Displays the number of normal broadcast packets received or transmitted on the port. Pause: Displays the number of flow control frames received or transmitted on the port. Multicast: Displays the number of normal multicast packets received or transmitted on the port.
Figure 3-22 Port Mirror The following items are displayed on this screen: ¾ General Enable Port Mirror: Check the box to enable the Port Mirror function. If unchecked, it will be disabled. Mode: Select the mode for the port mirror function. Options include: z Ingress: When this mode is selected, only the incoming packets sent by the mirrored port will be copied to the mirroring port.
Tips: If both the mirrored port and the mirroring port are the LAN ports, these two LAN ports should be in the same Port VLAN. For example, if port 3 (the mirroring port) and port 4 (the mirrored port) are the LAN ports, the Port Mirror function can take effect only when port 3 and port 4 are in the same Port VLAN.
Figure 3-23 Rate Control The following items are displayed on this screen: ¾ Rate Control Port: Displays the port number. Ingress Limit: Specify whether to enable the Ingress Limit feature. Ingress Mode: Select the Ingress Mode for each port. Options include: z All Frames: Select this option to limit all the frames. z Broadcast&Multicast: Select this option to limit broadcast frame and multicast frame.
Figure 3-24 Port Config The following items are displayed on this screen: ¾ Port Config Status: Specify whether to enable the port. The packets can be transported via this port after being enabled. Flow Control: Allows you to enable/disable the Flow Control function. Negotiation Mode: Select the Negotiation Mode for the port. All Ports: Allows you to configure the parameters for all the ports at one time. 3.1.7.5 Port Status On this page, you can view the current status of each port.
3.1.7.6 Port VLAN A VLAN (Virtual Local Area Network) is a network topology configured according to a logical scheme rather than the physical layout, which allows you to divide the physical LAN into multiple logical LANs so as to control the communication among the ports. The VLAN function can prevent the broadcast storm in LANs and enhance the network security. By creating VLANs in a physical LAN, you can divide the LAN into multiple logical LANs, each of which has a broadcast domain of its own.
3.2.1 Group On this page you can define the group for management. Choose the menu User Group→Group to load the following page. Figure 3-27 Group Configuration The following items are displayed on this screen: ¾ ¾ Group Config Group Name: Specify a unique name for the group. Description: Give a description for the group. It's optional. List of Group In this table, you can view the information of the Groups and edit them by the Action buttons. 3.2.
The following items are displayed on this screen: ¾ User Config User Name: Specify a unique name for the user. IP Address: Enter the IP Address of the user. It cannot be the network address or broadcast address of the port. Description: ¾ Give a description to the user for identification. It's optional. List of User In this table, you can view the information of the Users and edit them by the Action buttons. 3.2.3 View On this page, you can configure the User View or Group View.
¾ View Config View: Select the desired view for configuration. User Name: Select the name of the desired User. Available Group: Displays the Groups that the User can join. Selected Group: Displays the Groups to which this User belongs. Group Name: Select the name of the desired Group. Group Structure: Click this button to view the tree structure of this group. All the members of this group will be displayed, including Users and sub-Groups. The Group Names are displayed in bold.
Figure 3-30 NAT Setup The following items are displayed on this screen: ¾ NAPT Source Port Range: Enter the source port range between 2049 and 65000, the span of which must be not less than 100. ¾ NAT-DMZ NAT-DMZ: Enable or disable NAT-DMZ. NAT DMZ is a special service of NAT application, which can be considered as a default forwarding rule.
Figure 3-31 NAT Setup The following items are displayed on this screen: ¾ One-to-One NAT Mapping IP Address: Enter the Original IP Address in the first checkbox and Translated IP Address in the second checkbox. TL-ER5120 allows mapping from LAN port to WAN port and DMZ in LAN Mode. Interface: Select an interface for forwarding data packets. DMZ Forwarding: Enable or disable DMZ Forwarding.
3.3.1.3 Multi-Nets NAT Multi-Nets NAT functions to allow the IP under LAN or DMZ port within multiple subnets to access the Internet via NAT. Choose the menu Advanced→NAT→Multi-Nets NAT to load the following page. Figure 3-32 Multi-Nets NAT The following items are displayed on this screen: ¾ ¾ Multi-Nets NAT Subnet/Mask: Enter the subnet/mask to make the address range for the entry. Interface: Select the interface for the entry. You can select LAN or DMZ port.
Note: ● Multi-Nets NAT entry takes effect only when cooperating with the corresponding Static Route entries. ● The DMZ port will display in the drop-down list only when the DMZ port is enabled. ● For detailed setting of subnet mask, please refer to the Appendix B FAQ Application Example: Network Requirements The LAN subnet of TL-ER5120 is 192.168.0.0 /24, the subnet of VLAN2 under a three layer switch is 192.168.2.0 /24, while the subnet of VLAN3 is 192.168.3.0 /24.
Configuration procedure 1. Establish the Multi-Nets NAT entries with Subnet/Mask of VLAN2 and VLAN3. The configured entries are as follows: 2. Then set the corresponding Static Route entry, enter the IP address of the interface connecting the router and the three layer switch into the Next Hop field. Choose the menu Advanced→Routing→Static Route to load the following page.
3.3.1.4 Virtual Server Virtual server can be used for setting up public services in your private network, such as DNS, Email and FTP. Virtual server can define a service port. All the service requests to this port will be transmitted to the LAN server appointed by the router via IP address. Choose the menu Advanced→NAT→Virtual Server to load the following page. Figure 3-33 Virtual Server The following items are displayed on this screen: ¾ Virtual Server Name: Enter a name for Virtual Server entries.
Status: Activate or inactivate the entry. Note: ● The External port and Internal Port should be set in the range of 1-65535. ● The external ports of different entries should be different, whereas the internal ports can be the same. ¾ List of Rules In this table, you can view the information of the entries and edit them by the Action buttons.
¾ Port Triggering Name: Enter a name for Port Triggering entries. Up to 28 characters can be entered. Trigger Port: Enter the trigger port number or range of port numbers. Only when the trigger port initiates connection will all the corresponding incoming ports open and provide service for the applications, otherwise the incoming ports will not open. Trigger Protocol: Select the protocol used for trigger port. Incoming Port: Enter the incoming port number or range of port numbers.
Choose the menu Advanced→NAT→ALG to load the following page. Figure 3-35 ALG The following items are displayed on this screen: ¾ ALG FTP ALG: Enable or disable FTP ALG. The default setting is enabled. It is recommended to keep the default setting if no special requirement. H.323 ALG: Enable or disable H.323 ALG. The default setting is enabled. H.323 is used for various applications such as NetMeeting and VoIP. SIP ALG: Enable or disable SIP ALG. The default setting is enabled.
Figure 3-36 Configuration The following items are displayed on this screen: ¾ General Disable Bandwidth Select this option to disable Bandwidth Control. Control: Enable Bandwidth Select this option to enable Bandwidth Control all the time. Control all the time: Enable Bandwidth Control When: ¾ With this option selected, the Bandwidth Control will take effect when the bandwidth usage reaches the specified value.
¾ Interface Bandwidth Interface: Displays the current enabled WAN port(s). The Total bandwidth is equal to the sum of bandwidth of the enabled WAN ports. Upstream Displays the bandwidth of each WAN port for transmitting data. The Bandwidth: Upstream Bandwidth of WAN port can be configured on WAN page. Downstream Displays the bandwidth of each WAN port for receiving data. The Bandwidth: Downstream Bandwidth of WAN port can be configured on WAN page.
¾ Bandwidth Control Rule Direction: Select the data stream direction for the entry. The direction of arrowhead indicates the data stream direction The DMZ port displays in the drop-down list only when the DMZ port is enabled. WAN-ALL means all WAN ports through which the data flow might pass. Individual WAN port cannot be selected after WAN-ALL rules are added. Group: Select the group to define the controlled users.
Note: ● The premise for single rule taking effect is that the bandwidth of the interface for this rule is sufficient and not used up. ● It is impossible to satisfy all the guaranteed bandwidth if the total guaranteed bandwidth specified by all Bandwidth Control rules for certain interface exceeds the physical bandwidth of this interface. ● When DMZ port is disabled, it is only allowed deleting operation to the related rules. 3.3.
¾ ¾ Session Limit Group: Select a group to define the controlled user. Max. Sessions: Enter the max. Sessions for the users. Description: Give a description for the entry. Status: Activate or inactivate the entry. List of Session Limit You can view the information of the entries and edit them by the Action buttons. The first entry in Figure 3-38 indicates: The amount of maximum sessions for the hosts within group1 is 100 and this entry is enabled.
Figure 3-40 Configuration With the box before Enable Application Optimized Routing checked, the router will consider the source IP address and destination IP address of the packets as a whole and record the WAN port they pass through. And then the packets with the same source IP address and destination IP address or destination port will be forwarded to the recorded WAN port. This feature is to ensure the multi-connected applications to work properly.
The following items are displayed on this screen: ¾ General Protocol: Select the protocol for the entry in the drop-down list. If the protocol you want to set is not in the list, you can add it to the list on 3.3.4.4 Protocol page. Source IP: Enter the source IP range for the entry. 0.0.0.0 - 0.0.0.0 means any IP is acceptable. Destination IP: Enter the destination IP range for the entry. 0.0.0.0 - 0.0.0.0 means any IP is acceptable.
On this page, you can configure the Link Backup function based on actual need to reduce the traffic burden of WAN port and improve the network efficiency. Choose the menu Advanced→Load Balance→Link Backup to load the following page. Figure 3-42 Link Backup The following items are displayed on this screen: ¾ General WAN Ports: Displays all the WAN ports in use. You can drag the light-blue WAN button to primary and backup WAN list.
Timing: Link Backup will be enabled if the specified effective time is reached. All the traffic on the primary WAN will switch to the backup WAN at the beginning of the effective time; the traffic on the backup WAN will switch to the primary WAN at the ending of the effective time. Failover: Specify the premise for Failover Mode. The backup WAN port will be enabled only when the premise is met. Backup Specify the backup effective time if Timing Mode has been selected.
Figure 3-43 Protocol The following items are displayed on this screen: ¾ Protocol Name: Enter a name to indicate a protocol. The name will display in the drop-down list of Protocol on Access Rule page. Number: ¾ Enter the Number of the protocol in the range of 0-255. List of Protocol You can view the information of the entries and edit them by the Action buttons. Note: The system predefined protocols cannot be configured. 3.3.5 Routing 3.3.5.
Choose the menu Advanced→Routing→Static Route to load the following page. Figure 3-44 Static Route The following items are displayed on this screen: ¾ Static Route Destination: Enter the destination host the route leads to. Subnet Mask: Enter the Subnet Mask of the destination network. Next Hop: Enter the gateway IP address to which the packet should be sent next. Interface: Select the physical network interface, through which this route is accessible. Metric: Defines the priority of the route.
The first entry in Figure 3-44 indicates: If there are packets being sent to a device with IP address of 211.162.1.0 and subnet mask of 255.255.255.0, the router will forward the packets from WAN1 port to the next hop of 211.200.1.1. Application Example Network Requirements LAN1 is under the router and it uses network segment 192.168.0.0 /24. LAN2 and LAN3 are under a layer 3 switch and they use network segments 192.168.2.0 /24 and 192.168.3.0 /24 respectively.
2. Add a static routing rule for LAN3 by referring to step 2. The static routing rules are shown in the following figure. 3.3.5.2 RIP RIP (Routing Information Protocol) is a dynamic route protocol using distance vector algorithm to select the optimal path. With features of easy configuration, management and implementation, it is widely used in small and medium-sized networks such as the campus network.
Figure 3-45 RIP The following items are displayed on this screen: ¾ General Interface: Displays the interfaces which has been physically connected or assigned static IP. Status: Enable or disable RIP protocol. RIP Version: Select RIPv1 or RIPv2. RIPv2 supports multicast and broadcast. Password If RIPv2 is enabled, set the Password Authentication according to the actual Authentication: network situation, and the password should not be more than 15 characters.
data via this port. The IP address of next hop is 116.10.1.254 and the hop count is 1. The effective time of this entry is 1 second. Note: ● RIP function cannot be set if the router is in NAT Mode. To set RIP function, please change the System Mode to Routing or Full Mode. ● The RIP function of WAN port takes effects only when the Connection Type of this WAN port is Static IP. 3.3.5.3 Route Table This page displays the information of the system route table.
Metric The Metric of route entry. 3.4 Firewall 3.4.1 Anti ARP Spoofing ARP (Address Resolution Protocol) is used to analyze and map IP addresses to the corresponding MAC addresses so that packets can be delivered to their destinations correctly. ARP functions to translate the IP address into the corresponding MAC address and maintain an ARP Table, where the latest used IP address-to-MAC address mapping entries are stored.
The following items are displayed on this screen: ¾ General It is recommended to check all the options. You should import the IP and MAC address of the host to List of IP-MAC Binding and enable the corresponding entry before enabling “Permit the packets matching the IP-MAC Binding entries only”. When suffered ARP attack, the correct ARP information will be sent to the device suffering attack initiatively by GARP (Gratuitous ARP) packets, thus the error ARP information of the device will be replaced.
Figure 3-48 ARP Scanning Enter the start and the end IP addresses in the Scanning IP Range field. Then click the button, the router will scan all the active hosts within the scanning range and display the result in the list. The entries displayed on the List of Scanning Result do not mean the IP and MAC addresses are already bound. The current status for the entry will display in the “Status” field.
Figure 3-49 ARP List The configurations for the entries is the same as the configuration of List of Scanning Result on 3.4.1.2 ARP Scanning page. The unbound IP-MAC information will be replaced by new IP-MAC information or be automatically removed from the list if it has not been communicated with others for a long time. This period is regarded as the aging time of the ARP information. 3.4.
Figure 3-50 Attack Defense The following items are displayed on this screen: ¾ General Flood Defense: Flood attack is a kind of commonly used DoS (Denial of Service), which including TCP SYN, UDP, ICMP and so on. It is recommended to check all the Flood Defense options and specify the corresponding thresholds. Keep the default settings if you are not sure.
Packet Anomaly Packet Anomaly refers to the abnormal packets. It is Defense: recommended to select all the Packet Anomaly Defense options. Enable Attack With this box checked, the router will record the defense logs. Defense Logs: 3.4.3 MAC Filtering On this page, you can control the access to the Internet of local host by specifying their MAC addresses. Choose the menu Firewall→MAC Filtering→MAC Filtering to load the following page.
¾ List of Rules You can view the information of the entries and edit them by the Action buttons. 3.4.4 Access Control 3.4.4.1 URL Filtering URL (Uniform Resource Locator) specifies where an identified resource is available and the mechanism for retrieving it. URL Filter functions to filter the Internet URL address, so as to provide a convenient way for controlling the access to Internet from LAN hosts. Choose the menu Firewall→Access Control→URL Filtering to load the following page.
Mode: Select the mode for URL Filtering. “Keywords’’ indicates that all the URL addresses including the specified keywords will be filtered. “URL Path” indicates that the URL address will be filtered only when it exactly matches the specified URL. ¾ Effective Time: Specify the time for the entry to take effect. Description: Give a description for the entry. List of Rules You can view the information of the entries and edit them by the Action buttons.
3.4.4.2 Web Filtering On this page, you can filter the desired web components. Choose the menu Firewall→Access Control→Web Filtering to load the following page. Figure 3-53 Web Filtering Check the box before Enable Web Filtering and select the web components to be filtered. 3.4.4.3 Access Rules Choose the menu Firewall→Access Control→Access Rules to load the following page.
¾ Access Rules Policy: Select a policy for the entry: z Block: When this option is selected, the packets obeyed the rule will not be allowed to pass through the router. z Allow: When this option is selected, the packets obeyed the rule will be allowed to pass through the router. Service: Select the service for the entry. Only the service belonging to the specified service type is limited by the entry.
Priority: Select this option to specify the priority for the added entries. The latest enabled entry will be displayed at the end of the list by default. ¾ List of Rules You can view the information of the entries and edit them by the Action buttons. The smaller the value is, the higher the priority is. The first entry in Figure 3-54 indicates: The TELNET packets transmitted from the hosts within the network of 192.168.0.
Figure 3-55 Service The following items are displayed on this screen: ¾ Service Name: Enter a name for the service. The name should not be more than 28 characters. The name will display in the drop-down list of Protocol on Access Rule page. Protocol: Select the protocol for the service. The system predefined protocols include TCP, UDP and TCP/UDP. Dest. Port: Enter the start and end ports to make a destination port range for the service.
3.4.5 App Control 3.4.5.1 Control Rules On this page, you can enable the Application Rules function. Choose the menu Firewall→App Control→Control Rules to load the following page. Figure 3-56 Application Rules The following items are displayed on this screen: ¾ General Check the box before Enable Application Control to make the Application Control function take effect.
Application: Click the button to select applications from the popup checkbox. The applications include IM, Web IM, SNS, P2P, Media, Basic and Proxy. The default setting is to limit all the applications in the application list except for Basic and Proxy. ¾ Effective Time: Specify the time for the entry to take effect. Description: Give a description for the entry. Status: Activate or inactivate the entry.
3.5 Services 3.5.1 PPPoE Server The router can be configured as a PPPoE server to specify account and IP address to users in LAN and thus you can control the dial-up of users for a high efficiency in network management. The PPPoE configuration can be implemented on General, IP Address Pool, Account, Exceptional IP and List of Account pages. 3.5.1.1 General On this page, you can configure PPPoE function globally. Choose the menu Services→PPPoE Server→General to load the following page.
Primary/Secondary Enter the Primary/Secondary DNS server address. The default is DNS: 0.0.0.0. Max Sessions: Specify the maximum number of the sessions for PPPoE server. The default is 256. Max Echo-Requests: Specify the maximum number of Echo-Requests sent by the server to wait for response. The default is 10. The link will be dropped when the number of the unacknowledged LCP echo requests reaches your specified Max Echo-Requests. Idle Timeout: Enter the maximum idle time.
Figure 3-59 IP Address Pool The following items are displayed on this screen: ¾ IP Address Pool Pool Name: Specify a unique name to the IP Address Pool for identification and management purposes. IP Address Range: Specify the start and the end IP address for IP Pool. The start IP address should not exceed the end address and the IP address ranges must not overlap. ¾ List of IP Pool In this table, you can view the information of IP Address Pools and edit them by the Action buttons. 3.5.1.
Figure 3-60 Account The following items are displayed on this screen: ¾ Account Account Name: Enter the account name. This name should not be the same with the one in L2TP/PPTP connection settings. Password: Enter the password. IP Address Assigned Select the IP Address Assigned Mode for IP assignment. Mode: z Static: Select this option to assign a static IP address to the client. z Dynamic: Select this option to assign available IP addresses to the client automatically.
Description: Enter the description for management and search purposes. Up to 28 characters can be entered. Status: Activate or inactivate the entry. MAC Binding: Select a MAC Binding type from the pull-down list. Options include: MAC Address: z Disable: Select this option to disable the MAC Binding function. z Manual: Select this option to bind the account to a MAC address manually. Only from the Host with this MAC address can the account log on to the server.
Figure 3-61 Exceptional IP The following items are displayed on this screen: ¾ Exceptional IP IP Address Range: Specify the start and the end IP address to make an exceptional IP address range. This range should be in the same IP range with LAN port or DMZ port of the router. The start IP address should not exceed the end address and the IP address ranges must not overlap. ¾ Description: Give a description to the exceptional IP address range for identification.
3.5.2 E-Bulletin With E-Bulletin function, bulletin information can be released to the specified users. On this page you can edit the bulletin content and specify the receiving user group. Choose the menu Services→E-Bulletin to load the following page. Figure 3-63 E-Bulletin The following items are displayed on this screen: ¾ General Enable E-Bulletin: Specify whether to enable electronic bulletin function. Interval: Specify the interval to release the bulletin.
Enable Logs: ¾ Specify whether to log the E-Bulletin. E-Bulletin Title: Enter a title for the bulletin. Content: Enter the content of the bulletin. Object: Select the object of this bulletin. Options include: z z ANY: The bulletin will be released to all the users and the PCs on the LAN. Group: The bulletin will be released to the users in the selected group. You can click < and click < > button to add a group to the selected group > to remove a group from the selected group.
As many ISPs use DHCP to assign public IP addresses in WAN, the public IP address assigned to the client is unfixed. In this way, it’s very difficult for other clients to get the latest IP address of this client for access. DDNS (Dynamic DNS) server provides a fixed domain name for DDNS client and maps its latest IP address to this domain name.
¾ Dyndns DDNS Account Name: Enter the Account Name of your DDNS account. If you have not registered, click to go to the website of Dyndns for register. Password: Enter the password of your DDNS account. Domain Name: Enter the Domain Name that you registered with your DDNS service provider. ¾ DDNS Service: Activate or inactivate DDNS service here. WAN Port: Displays the WAN port for which Dyndns DDNS is selected.
Figure 3-65 NO-IP DDNS The following items are displayed on this screen: ¾ No-IP DDNS Account Name: Enter the Account Name of your DDNS account. If you have not registered, click to go to the website of No-IP for register. Password: Enter the password of your DDNS account. Domain Name: Enter the Domain Name that you registered with your DDNS service provider. ¾ DDNS Service: Activate or inactivate DDNS service here.
3.5.3.3 PeanutHull On this page you can configure PeanutHull DDNS client. Choose the menu Services→Dynamic DNS→PeanutHull to load the following page. Figure 3-66 PeanutHull DDNS The following items are displayed on this screen: ¾ PeanutHull DDNS Account Name: Enter the Account Name of your DDNS account. If you have not registered, click to go to the website of PeanutHull for register. Password: Enter the password of your DDNS account.
DDNS Status: Domain Name: Displays the current status of DDNS service z Offline: DDNS service is disabled. z Connecting: client is connecting to the server. z Online: DDNS works normally. z Authorization fails: The Account Name or Password is incorrect. Please check and enter it again. Displays the domain names obtained from the DDNS server. Up to 16 domain names can be displayed here.
¾ Comexe DDNS Account Name: Enter the Account Name of your DDNS account. If you have not registered, click to go to the website of Comexe for register. Password: Enter the password of your DDNS account. Domain Name 1: Enter the Domain Name that you registered with your DDNS service provider. Domain Name 2: Optional. Enter the Domain Name that you registered with your DDNS service provider. Domain Name 3: Optional.
If UPnP groupware are installed in the host in LAN and UPnP function is enabled for the router, the host in LAN can automatically open the corresponding port to allow the UPnP application in WAN to access the resource of the host in LAN via this port, so that the functions limited to NAT can work normally. For example, MSN Messenger installed in Windows XP and Windows ME system is using UPnP protocol when audio and video communications are processing. On this page you can configure UPnP service.
3.6 Maintenance 3.6.1 Admin Setup 3.6.1.1 Administrator On this page, you can modify the factory default user name and password of the router. Choose the menu Maintenance→Admin Setup→Administrator to load the following page. Figure 3-69 Administrator The following items are displayed on this screen: ¾ Administrator Current User Name: Enter the current user name of the router. Current Password: Enter the current password of the router. New User Name: Enter a new user name for the router.
3.6.1.2 Login Parameter On this page, you can configure and modify the Web and Telnet port. Choose the menu Maintenance→Admin Setup→Login Parameter to load the following page. Figure 3-70 Login Parameter The following items are displayed on this screen: ¾ General Web Management Port: Enter the Web Management Port for the router. Telnet Management Port: Enter the Telnet Management Port for the router.
Configuration Procedure Type 210.10.10.0/24 in the Subnet/Mask field on Remote Management page and enable the entry as the following figure shows. Then type the corresponding port number in Web Management Port and Telnet Management Port fields as the following figure shows. Finally, start the web browser and type 210.10.10.50 in the URL field to log in the Web management page of the router. 3.6.1.3 Remote Management On this page you can configure the Remote Management function.
Status: ¾ Activate or inactivate the entry. List of Subnet In this list, you can view the Remote Management entries and edit them by the Action buttons. The first entry in Figure 3-71 indicates that: The hosts with IP address in subnet of 192.168.2.0/24 are allowed to access the router and this entry is activated. 3.6.2 Management 3.6.2.1 Factory Defaults Choose the menu Maintenance→Management→Factory Defaults to load the following page.
¾ Configuration Version Displays the current Configuration version of the router. ¾ Export Click the button to save the current configuration as a file to your computer. You are suggested to take this measure before upgrading or modifying the configuration. ¾ Import Click the button to locate the update file for the device, or enter the exact path to the saved file in the text box. Then click the button to restore the saved setting.
To upgrade the router is to get more functions and better performance. Go to http://www.tp-link.com to download the updated firmware. Type the path and file name of the update file into the “File” field. Or click the button to locate the update file. Then click the button to complete. Note: ● After upgrading, the device will reboot automatically. ● To avoid damage, please don't turn off the device while upgrading. ● You are suggested to backup the configuration before upgrading. 3.
¾ Bytes Rx: Displays the bytes of packets received on the interface. Bytes Tx: Displays the bytes of packets transmitted on the interface. Advanced WAN Information Interface: Displays the interface. IP Fragment Rx: Displays the amount of IP Fragments received by WAN port. Abnormal IP Packets Rx: Displays the rate for transmitting data frames. 3.6.3.2 IP Traffic Statistics IP Traffic Statistics screen displays the detailed traffic information of each PC on LAN or DMZ.
Sorted by: Select the rule for displaying the traffic information. 3.6.4 Diagnostics 3.6.4.1 Diagnostics This router provides Ping test and Tracert test functions for network diagnose. Choose the menu Maintenance→Diagnostics→Diagnostics to load the following page.
¾ Ping Destination IP/Domain: ¾ Enter destination IP address or Domain name here. Then select a port for testing, if you select “Auto”, the router will select the interface of destination automatically. After clicking button, the router will send Ping packets to test the network connectivity and reachability of the host and the results will be displayed in the box below. Tracert Destination IP/Domain: 3.6.4.2 Enter destination IP address or Domain name here.
¾ Mode: Detect automatically or Manually. In Auto mode, gateway will be selected as destination for PING detection, DNS server of WAN port will be selected as destination for DNS Lookup. In Manual Mode, you can configure the destination for PING and DNS Lookup manually. Ping: Enter the destination IP for Ping in Manual mode. 0.0.0.0 means PING detection is disabled. DNS Lookup: Enter the IP address of DNS server in Manual mode. 0.0.0.0 means DNS Lookup is disabled.
¾ Config Get UTC: When this option is selected, you can configure the time zone and the IP address for the NTP server. The router will get UTC automatically if it has connected to an NTP server. z Time Zone: Select the time zone for the router. z Primary/Secondary NTP Server: Enter the IP address or domain name of the NTP server. Manual: With this option selected, you can set the date and time manually.
¾ Daylight Saving Time(DST) Config DST Status: Enable or disable the DST. Predefined Mode: Select a predefined DST configuration. Recurring Mode: z USA: Second Sunday in March, 02:00 ~ First Sunday in November, 02:00. z European: Last Sunday in March, 01:00 ~ Last Sunday in October, 01:00. z Australia: First Sunday in October, 02:00 ~ Fisrt Sunday in April, 03:00. z New Zealand: Last Sunday in September, 02:00 ~ First Sunday in April, 03:00. Specify the DST configuration in recurring mode.
Figure 3-82 Logs ¾ List of Logs List of Logs displays the system log information in log buffer. An entry of log contains the following four parts: ¾ Config Enable Auto-refresh: With this option selected, the page will refresh automatically every 5 seconds. Severity: Displays the severity level of the log information. You can select a severity level to display the log information with the same level.
Chapter 4 Application 4.1 Network Requirements The company has established the server farms in the headquarters to provide the Web, Mail and FTP services for all the staff. The dedicated line access service was used by this company, which costs greatly in network maintain and cable layout. With the business development of the company, it’s required to establish an effective, safe and stable network with low cost for this company.
enables you to set the connection of WAN1 as the main line and the connection of WAN2 as the backup line, which allows the router to switch to the connection of WAN2 once the connection of WAN1 is broken down. The detailed configurations are as follows. 4.2.1.1 System Mode Set the system mode of the router to the NAT mode. Choose the menu Network→System Mode to load the following page. Select the NAT mode and the button to apply. Figure 4-1 System Mode 4.2.1.
Figure 4-3 WAN – Static IP 4.2.1.4 Link Backup Set the connection of WAN1 as the primary link, the connection of WAN 2 as the secondary link. Choose the menu Advanced→Load Balance→Link Backup to load the configuration page. Select WAN1 as Primary WAN, WAN2 as Backup WAN, select the Failover mode as Figure 1-2 shows, and then click the button to apply.
4.2.2 Network Management To manage the enterprise network effectively and forbid the Hosts within the IP range of 192.168.0.30-192.168.0.50 to use IM/P2P application, you can set up a User Group and specify the network bandwidth limit and session limit for this group. The detailed configurations are as follows. 4.2.2.1 User Group Create a User Group with all the Hosts in the IP range of 192.168.0.30-192.168.0.50 as its group members. z Group Choose the menu User Group→Group to load the following page.
Figure 4-6 User Config - Batch z View Choose the menu User Group→View to load the configuration page. Add all the Users you just created into the Group 1 and click the button to apply. 4.2.2.2 App Control Choose the menu Firewall→App Control→Control Rules to load the configuration page. Check the box before Enable Application Control and click to apply.
Figure 4-7 App Rules 4.2.2.3 Bandwidth Control To enable Bandwidth Control, you should configure the total bandwidth of interfaces and the detailed bandwidth control rule first. 1) Enable Bandwidth Control Choose the menu Advanced→Traffic Control→Setup to load the configuration page. Check the box before Enable Bandwidth Control and click the button to apply.
2) Interface Bandwidth Choose the menu Network→WAN→WAN1 to load the configuration page. Configure the Upstream Bandwidth and Downstream Bandwidth of the interface as Figure 4-9 shows. The entered bandwidth value should be consistent with the actual bandwidth value. 3) Bandwidth Control Rule Choose the menu Advanced→Traffic Control→Bandwidth Control to load the configuration page.
Max. Sessions: 250 Status: Activate Click the button to apply. Figure 4-11 Session Limit 4.2.3 Network Security You can enable the IP-MAC Binding function to defend the ARP attack from local or public network and enable Sending GARP packets function to defend ARP attack. Moreover, you can enable DoS Defense function to implement flood defense and Packet Anomaly Defense. Moreover, you can enable Port Mirror function and Statistics function to monitor the real-time traffic of the local network.
Figure 4-13 Scanning Result Choose the menu Firewall→Anti ARP Spoofing→IP-MAC Binding to load the configuration page. Select the ARP entries needed to be bound or click the
Figure 4-15 IP-MAC Binding 4.2.3.2 WAN ARP Defense To prevent the WAN ARP attack, you can bind the default gateway and IP address of WAN port. Obtain the MAC address of WAN port by ARP Scanning first. Choose the menu Firewall→Anti ARP Spoofing→ARP Scanning to load the configuration page. Enter the default gateway of the WAN port such as 58.51.128.254 in the Scanning Range field and click the button, the MAC address of the WAN port will display in the Scanning Result table.
Figure 4-16 Attack Defense 4.2.3.4 1) Traffic Monitoring Port Mirror Choose the menu Network→Switch→Port Mirror to load the configuration page. Check the box before Enable Port Mirror and select the Ingress&Egress mode. Select the Port 5 for the Mirroring Port and the Port 3 and the Port 4 for the Mirrored ports. Click the button to apply.
Figure 4-17 Port Mirror 2) Statistics Choose the menu Maintenance→Statistics to load the page. Load the Interface Traffic Statistics page to view the traffic statistics of each physical interface of the router as Figure 4-18 shows. Figure 4-18 Interface Traffic Statistics Load the IP Traffic Statistics page, and Check the box before Enable IP Traffic Statistics and Enable Auto-refresh, then click the button to apply.
Figure 4-19 IP Traffic Statistics After all the above steps, the enterprise network will be operated based on planning.
Chapter 5 CLI TL-ER5120 provides a Console port for CLI (Command Line Interface) configuration, which enables you to configure the router by accessing the CLI from console (such as Hyper Terminal) or Telnet. The following part will introduce the steps to access CLI via Hyper Terminal and some common CLI commands. 5.1 Configuration To log on to the router by the console port on the router, please take the following steps: 1.
Figure 5-2 Connection Description 4. Select the port (The default port is COM1) to connect in Figure 5-3, and click OK. Figure 5-3 Select the port to connect 5. Configure the port selected in the step above as the following Figure 5-4 shows. Configure Bits per second as 115200, Data bits as 8, Parity as None, Stop bits as 1, Flow control as None, and then click OK.
Figure 5-4 Port Settings 6. Choose File → Properties → Settings on the Hyper Terminal window as Figure 5-5 shows, then choose VT100 or Auto detect for Emulation and click OK.
7. The DOS prompting “TP-LINK>” will appear after pressing the Enter button in the Hyper Terminal window as Figure 5-6 shows. Figure 5-6 Log in the Router 5.2 Interface Mode The CLI of TL-ER5120 offers two command modes: User EXEC Mode and Privileged EXEC Mode. User EXEC Mode only allows users to do some simple operations such as view the system information, while Privileged EXEC Mode allows you to manage and configure the router. Thus different users have different privileges management.
Mode Accessing Path Prompt Logout or Access the next mode User EXEC Primary Mode mode once it is TP-LINK > Use the exit command to disconnect the router (except that the router is connected with the router. connected through the Console port). Use the enable command to access Privileged EXEC mode.
2) enable - Enter the privileged mode exit - Exit the CLI (only for telnet) history - Show command history ip - Display or Set the IP configuration ip-mac - Display or Set the IP mac bind configuration sys - System manager user - User configuration Type a command and a question mark separated by space. If there are keywords in this command, all the keywords and their brief descriptions will display.
5.4 Command Introduction TL-ER5120 provides a number of CLI commands for users to manage the router and user information. For better understanding, each command is followed by notes which will be the meaning of the command. 5.4.1 ip The ip command is used to view or configure the IP address and subnet mask of the interfaces. View command can be used in both User EXEC Mode and Privileged EXEC Mode while configuration function can be only used in Privileged EXEC Mode.
5.4.3 sys The sys command is used for system management, including Backup and Restore, Factory Default, Reboot, Firmware Upgrade and so on. TP-LINK # sys reboot Reboot the system. Y means This command will reboot system, Continue?[Y/N] TP-LINK # sys restore YES, N means NO. Restore to factory default. Y This command will restore system, Continue?[Y/N] means YES, N means NO. TP-LINK # sys export config Export the configuration file. Server address: [192.168.1.101]192.168.1.
● Pay special attention that the specified account must be with appropriate permissions since the functions such as export, import and firmware upgrade require read-write operation on FTP server. TP-LINK # sys import config Import the configuration file. Server address: [192.168.1.101] The steps are as the above item shows. Username: [admin] Password: [admin] File name: [config.bin] Try to get the configuration file < config.bin > ...
TP-LINK > user get Query the user name and password Username: admin of the current Guest. Password: admin TP-LINK > user set password Modify the password of the Guest. Enter old password: Enter new password: Confirm new password: TP-LINK # user get Query the user name and password Username: admin of the Administrator. Password: admin TP-LINK # user set password Modify the password of the Administrator.
TP-LINK > history View the history command. 1. history 2. sys show 3. history TP-LINK > history clear Clear the history command. 1. history 2. sys show 3. history 4. history clear 5.4.6 exit The exit command is used to exit the system only when logging in by Telnet. TP-LINK > exit Exit CLI.
Appendix A Hardware Specifications Standards IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, TCP/IP, DHCP, ICMP, NAT, PPPoE, SNTP, HTTP, DNS One 10/100/1000M Auto-Negotiation WAN RJ45 port (Auto MDI/MDIX) Three adjustable 10/100/1000M Auto-Negotiation WAN/LAN RJ45 ports Ports (Auto MDI/MDIX) One 10/100/1000M Auto-Negotiation LAN RJ45 port (Auto MDI/MDIX) One Console Port 10Base-T: UTP/STP of Cat. 3 or above Transmission Medium 100Base-TX: UTP/STP of Cat. 5 or above 1000Base-T: UTP/STP of Cat.5, Cat.5e, Cat.
Appendix B FAQ Q1. What can I do if I cannot access the web-based configuration page? 1. 2. For the first login, please try the following steps: 1) Make sure the cable is well connected to the LAN port of the router. The corresponding LED should flash or be solid light. 2) Make sure the IP address of your PC is set in the same subnet addresses of the router. It’s recommended to set your PC to get the IP address automatically.
Q3: What can I do if the router with the remote management function enabled cannot be accessed by the remote computer? 1. Make sure that the IP address of the remote computer is in the subnet allowed to remotely access the router. 2. If the router’s management port has been modified, please log into the router with the new address, such as http://192.168.0.1:XX (“XX” is the new management port number). 3.
Appendix C Glossary Glossary Description Application Level Gateway (ALG) is application specific ALG （ Application Layer translation agent that allows an application on a host in one address realm to connect to its counterpart running on a host in Gateway） different realm transparently. A ARP （ Address Resolution Protocol） Internet protocol used to map an IP address to a MAC address. A security protocol that provides data authentication and AH（Authentication Header） optional anti-replay services.
Glossary Description H.323 allows dissimilar communication devices to communicate H.323 H with each other by using a standardized communication protocol. H.323 defines a common set of CODECs, call setup and negotiating procedures, and basic data transport methods. HTTP（Hypertext Transfer The protocol used by Web browsers and Web servers to transfer files, such as text and graphic files.
Glossary Description Standardized data link layer address that is required for every port or device that connects to a LAN. Other devices in the MAC address（Media network use these addresses to locate specific ports in the Access Control address） network and to create and update routing tables and data M structures. MAC addresses are 6 bytes long and are controlled by the IEEE. MTU（Maximum The size in bytes of the largest packet that can be transmitted.
T Glossary Description TCP（Transfer Control Connection-oriented transport layer protocol that provides Protocol） reliable full-duplex data transmission. TCP/IP（Transmission Common name for the suite of protocols to support the Control Protocol/ Internet construction of worldwide Internetworks. TCP and IP are the two Protocol） best-known protocols in the suite.
