TP-Link SafeStream TL-ER6120 User Manual

TP-Link SafeStream TL-ER6120 User Manual

Multi-wan vpn router
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TL-ER6120
Multi-WAN VPN Router
Rev: 1.0.0
1910010516

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Summary of Contents for TP-Link SafeStream TL-ER6120

  • Page 1 TL-ER6120 Multi-WAN VPN Router Rev: 1.0.0 1910010516...
  • Page 2: Fcc Statement

    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 © 2011 TP-LINK TECHNOLOGIES CO., LTD. All rights reserved. http://www.tp-link.com FCC STATEMENT This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.
  • Page 3: Table Of Contents

    CONTENTS ........................1 Package Contents ....................2 Chapter 1 About this Guide Intended Readers ........................2 Conventions ...........................2 Overview of this Guide ......................2 ......................4 Chapter 2 Introduction Overview of the Router ......................4 Features..........................5 Appearance..........................6 2.3.1 Front Panel ........................6 2.3.2 Rear Panel.........................8 ......................9 Chapter 3 Configuration Network..........................9 3.1.1 Status.........................9...
  • Page 4 3.3.3 Session Limit ......................59 3.3.4 Load Balance......................60 3.3.5 Routing ........................65 Firewall..........................70 3.4.1 Anti ARP Spoofing ....................70 3.4.2 Attack Defense ......................73 3.4.3 MAC Filtering ......................75 3.4.4 Access Control......................76 3.4.5 App Control......................82 VPN............................84 3.5.1 IKE...........................85 3.5.2 IPsec........................89 3.5.3 L2TP/PPTP......................96 Services ..........................100 3.6.1 PPPoE Server......................100 3.6.2 E-Bulletin .......................106...
  • Page 5 Network Topology.......................129 Configurations........................129 4.3.1 Internet Setting ......................129 4.3.2 VPN Setting ......................132 4.3.3 Network Management....................137 4.3.4 Network Security....................141 ........................147 Chapter 5 CLI…. Configuration........................147 Interface Mode ........................150 Online Help ........................151 Command Introduction.......................152 5.4.1 ip..........................153 5.4.2 ip-mac ........................153 5.4.3 sys .........................153 5.4.4 user........................155 5.4.5 history ........................156 5.4.6...
  • Page 6: Package Contents

    One TL-ER6120 Router One power cord One console cable One ground cable Two mounting brackets and other fittings Installation Guide Resource CD for TL-ER6120 Router, including: • This User Guide • Other Helpful Information Note: Make sure that the package contains the above items. If any of the listed items are damaged or...
  • Page 7: Chapter 1 About This Guide

    Chapter 1 About this Guide This User Guide contains information for setup and management of TL-ER6120 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: The Router or TL-ER6120 mentioned in this Guide stands for TL-ER6120 SafeStream Multi-WAN VPN Router without any explanation.
  • Page 8 Appendix A Hardware Lists the hardware specifications of this Router. Specifications 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.
  • Page 9: Chapter 2 Introduction

    2.1 Overview of the Router The SafeStream Multi-WAN VPN Router TL-ER6120 from TP-LINK possesses excellent data processing capability and multiple powerful functions including IPsec/PPTP/L2TP VPN, Load Balance, Access Control, Bandwidth Control, Session Limit, IM/P2P Blocking, PPPoE Server and so on, which consumedly meet the needs of small and medium enterprise, hotels and communities with volumes of users demanding a efficient and easy-to-manage network with high security.
  • Page 10: Features

    Multi-WAN Ports + Providing three adjustable 10/100/1000M WAN/LAN ports for users to configure the amount of WAN ports based on need and connect multiple Internet lines for bandwidth expansion. + Supporting multiple Load Balance modes, including Bandwidth Based Balance Routing, Application Optimized Routing, and Policy Routing to optimize bandwidth usage.
  • Page 11: Appearance

    Built-in firewall supporting URL/MAC Filtering Supports Access Control Supports Attack Defense Supports IP-MAC Binding Supports GARP (Gratuitous ARP) Deploys One-Click restricting of IM/P2P applications 2.3 Appearance 2.3.1 Front Panel The front panel of TL-ER6120 is shown as the following figure.
  • Page 12: Led Status Indication

    LEDs Status Indication The Router is powered on The Router is powered off or power supply is abnormal Flashing The Router works properly On/Off The Router works improperly There is a device linked to the corresponding port Link/Act There is no device linked to the corresponding port Flashing The corresponding port is transmitting or receiving data On (Green) The linked device is running at 1000Mbps...
  • Page 13: Rear Panel

    If the SYS LED is flashing with a high frequency about two or three seconds, it means the Router is restored successfully. 2.3.2 Rear Panel The rear panel of TL-ER6120 is shown as the following figure. Power Socket Connect the female connector of the power cord to this power socket, and the male connector to the AC power outlet.
  • Page 14: Chapter 3 Configuration

    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.
  • Page 15: System Mode

    Figure 3-1 Status 3.1.2 System Mode The TL-ER6120 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 shown, you can set it to NAT mode.
  • Page 16 Figure 3-2 Network Topology - NAT Mode If your Router is connecting the two networks of different areas in a large network environment with a network topology as the Figure 3-3 shown, and forwards the packets between these two networks by the Routing rules, you can set it to Non-NAT mode.
  • Page 17 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. NAT Mode NAT (Network Address Translation) mode allows the Router to translate private IP addresses within internal networks to public IP addresses for traffic transport over external networks, such as the Internet.
  • Page 18: Wan

    3.1.3 WAN 3.1.3.1 WAN Mode TL-ER6120 provides four available WAN ports. You can set the number of WAN ports on this page. Choose the menu Network→WAN→WAN Mode to load the following page. Figure 3-6 WAN Mode WAN Mode WAN Ports: Select the total number of WAN ports you prefer to use.
  • Page 19 Note: By default, TL-ER6120 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.
  • Page 20 The following items are displayed on this screen: 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. If you are not clear, please consult your ISP.
  • Page 21 Figure 3-8 WAN – Dynamic IP The following items are displayed on this screen: Dynamic IP Connection Type: Select Dynamic IP if your ISP assigns the IP address automatically. Click <Obtain> to get the IP address from your ISP’s server. Click <Release> to release the current IP address of WAN port.
  • Page 22 Address The broadcast requirement may not be supported by Unicast: a few ISPs. Select this option if you can not get the IP address from your ISP even with a normal network connection. This option is not required generally. Use the following DNS Select this option to enter the DNS (Domain Name Server) address manually.
  • Page 23 IP Address: Displays the IP address assigned by your ISP. Subnet Mask: Displays the Subnet Mask assigned by your ISP. Displays the Gateway Address assigned by your ISP. Gateway Address: Primary DNS: Displays the IP address of your ISP’s Primary DNS. Displays the IP address of your ISP’s Secondary Secondary DNS: DNS.
  • Page 24 Figure 3-9 WAN - PPPoE The following items are displayed on this screen: PPPoE Settings Connection Type: Select PPPoE if your ISP provides xDSL Virtual Dial-up connection. Click <Connect> to dial-up to the Internet obtain address. Click <Disconnect> to disconnect the Internet connection and release the current IP address.
  • Page 25 Account Name: Enter the Account Name provided by your ISP. If you are not clear, please consult your ISP. Enter the Password provided by your ISP. Password: Active Mode: You can select the proper Active mode according to your need. Manual: Select this option to manually activate or terminate Internet...
  • Page 26 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. If Static IP is selected, configure the IP address of IP Address: WAN port. If Dynamic IP is selected, the obtained IP address of WAN port is displayed.
  • Page 27 this problem remains. IP Address: Displays the IP address assigned by your ISP. Gateway Address: Displays the Gateway Address assigned by your ISP. Displays the IP address of your ISP’s Primary DNS. Primary DNS: Secondary DNS: Displays the IP address of your ISP’s Secondary DNS.
  • Page 28 Figure 3-10 WAN - L2TP The following items are displayed on this screen: L2TP Settings Connection Type: Select L2TP if your ISP provides a L2TP connection. Click <Connect> to dial-up to the Internet and obtain the IP address. Click <Disconnect> to disconnect the Internet connection and release the current IP address.
  • Page 29 not clear, please consult your ISP. Password: Enter the Password provided by your ISP. Server IP: Enter the Server IP provided by your ISP. MTU (Maximum Transmission Unit) is the maximum data MTU: unit transmitted by the physical network. It can be set in the range of 576-1460.
  • Page 30 Primary If Static IP is selected, configure the DNS. If Dynamic IP DNS/Secondary DNS: is selected, the obtained DNS is displayed. Specify the bandwidth for transmitting packets on the Upstream port. Bandwidth: Specify the bandwidth for receiving packets on the port. Downstream Bandwidth: L2TP Status...
  • Page 31 Figure 3-11 WAN - PPTP The following items are displayed on this screen: PPTP Settings Connection Type: Select PPTP if your ISP provides a PPTP connection. Click <Connect> to dial-up to the Internet and obtain the IP address. Click <Disconnect> to disconnect the Internet connection and release the current IP address.
  • Page 32 Account Name: Enter the Account Name provided by your ISP. If you are not clear, please consult your ISP. Enter the Password provided by your ISP. Password: Server IP: Enter the Server IP provided by your ISP. MTU: MTU (Maximum Transmission Unit) is the maximum data unit transmitted by the physical network.
  • Page 33 displayed. Primary If Static IP is selected, configure the DNS. If Dynamic IP DNS/Secondary DNS: is selected, the obtained DNS is displayed. Specify the bandwidth for transmitting packets on the Upstream Bandwidth: port. Downstream Specify the bandwidth for receiving packets on the port. Bandwidth: PPTP Status Displays the status of PPTP connection.
  • Page 34 The following items are displayed on this screen: BigPond Settings Connection Type: Select BigPond if your ISP provides a BigPond connection. Click <Connect> to dial-up to the Internet and obtain the IP address. Click <Disconnect> to disconnect the Internet connection and release the current IP address.
  • Page 35 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. Manual: Select this option to manually activate or terminate the Internet connection by the <Connect>...
  • Page 36: Lan

    IP Address: Displays the IP address assigned by your ISP. Subnet Mask: Displays the Subnet Mask assigned by your ISP. Displays the IP address of the default gateway assigned by Default Gateway: your ISP. Note: To ensure the BigPond connection re-established normally, please restart the connection at least 5 seconds after the connection is off.
  • Page 37 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. Figure 3-13 DHCP Settings The following items are displayed on this screen: DHCP Settings Enable or disable the DHCP server on your Router.
  • Page 38: Dhcp Reservation

    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. Optional. Enter the domain name of your network. Default Domain: Primary DNS: Optional. Enter the Primary DNS server address provided by your ISP.
  • Page 39 Figure 3-15 DHCP Reservation The following items are displayed on this screen: DHCP Reservation MAC Address: Enter the MAC address of the computer for which you want to reserve the IP address. Enter the reserved IP address. IP Address: Description: Optional.
  • Page 40: Dmz

    DMZ (Demilitarized Zone) is a network which has fewer default firewall restrictions than the LAN does. TL-ER6120 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.
  • Page 41: Mac Address

    Choose the menu Network→DMZ→DMZ to load the following page. Figure 3-18 DMZ The following items are displayed on this screen: Status: Activate or inactivate this entry. The DMZ port functions as a normal LAN port when it’s disabled. Select the mode for DMZ port to control the connection Mode: way among DMZ, LAN and Internet.
  • Page 42 TL-ER6120 instead of the current router in a network node, you can just set the MAC address of TL-ER6120 ‘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.
  • Page 43: Switch

    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. 3.1.7 Switch Some basic switch port management functions are provided by TL-ER6120, which facilitates you to monitor the traffic and manage the network effectively. 3.1.7.1...
  • Page 44: Port Mirror

    Unicast: Displays the number of normal unicast packets received or transmitted on the port. Displays the number of normal broadcast packets received Broadcast: 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.
  • Page 45 Figure 3-21 Port Mirror The following items are displayed on this screen: 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: Ingress: When this mode is selected, only the incoming packets sent by the mirrored port will be...
  • Page 46: Rate Control

    The entry in Figure 3-21 indicates: The outgoing packets sent by port 1, port 2, port 3 and port 5 (mirrored ports) will be copied to port 4 (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.
  • Page 47: Port Config

    Figure 3-22 Rate Control The following items are displayed on this screen: Rate Control Port: Displays the port number. Specify whether to enable the Ingress Limit feature. Ingress Limit: Ingress Mode: Select the Ingress Mode for each port. Options include: All Frames: Select this option to limit all the frames.
  • Page 48: Port Status

    Figure 3-23 Port Config The following items are displayed on this screen: 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. Select the Negotiation Mode for the port.
  • Page 49: User Group

    LAN. However, hosts in different VLANs cannot communicate with one another directly. Therefore, broadcast packets are limited in a VLAN. TL-ER6120 provides the Port VLAN function, which allows you to create multiple logical VLANs for the LAN ports based on their port numbers.
  • Page 50: Group

    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 3-26 Group Configuration The following items are displayed on this screen: Group Config Group Name: Specify a unique name for the group. Description: Give a description for the group.
  • Page 51: View

    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: 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.
  • Page 52: Advanced

    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. Available Member: Displays the Users and the Groups which can be added into this group. Selected Member: Displays the members of this group, including Users and Groups.
  • Page 53 Choose the menu Advanced→NAT→One-to-One NAT to load the following page. Mapping IP Address: Enter the Original IP Address in the first checkbox and Translated IP Address in the second checkbox. TL-ER6120 allows mapping from LAN port to WAN port and DMZ in LAN Mode. Interface: Select an interface for forwarding data packets.
  • Page 54 The first entry in Figure 3-29 indicates: The IP address of host1 in local network is 1.1.1.1 and the WAN IP address after NAT mapping is specified to be 2.2.2.2. The data packets are transmitted from WAN1 port. DMZ Forwarding and this entry are both activated. Note: One-to-One NAT entries take effect only when the Connection Type of WAN is Static IP.
  • Page 55 Application Example: Network Requirements The LAN subnet of TL-ER6120 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. The IP of VLAN for cascading the switch to the Router is 192.168.0.2. Now the hosts within VLAN2 and VLAN3 desire to access the Internet.
  • Page 56 Configuration procedure Establish the Multi-Nets NAT entries with Subnet/Mask of VLAN2 and VLAN3. The configured entries are as follows: 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.
  • Page 57: Virtual Server

    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.
  • Page 58: Port Triggering

    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. List of Rules In this table, you can view the information of the entries and edit them by the Action buttons.
  • Page 59 Port Triggering Enter a name for Port Triggering entries. Up to 28 characters can be Name: 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.
  • Page 60: Traffic Control

    Choose the menu Advanced→NAT→ALG to load the following page. Figure 3-33 ALG The following items are displayed on this screen: FTP ALG: Enable or disable FTP ALG. The default setting is enabled. It is recommended to keep the default setting if no special requirement.
  • Page 61 Figure 3-34 Configuration The following items are displayed on this screen: General Select this option to disable Bandwidth Control. Disable Bandwidth Control: Enable Bandwidth Select this option to enable Bandwidth Control all the time. Control all the time: With this option selected, the Bandwidth Control will take effect when the Enable Bandwidth Control When:...
  • Page 62: Bandwidth Control

    Interface: Displays the current enabled WAN port(s). The Total bandwidth is equal to the sum of bandwidth of the enabled WAN ports. Displays the bandwidth of each WAN port for transmitting data. The Upstream Bandwidth: Upstream Bandwidth of WAN port can be configured on WAN page. Downstream Displays the bandwidth of each WAN port for receiving data.
  • Page 63 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.
  • Page 64: Session Limit

    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.
  • Page 65: Load Balance

    Enable Session Check here to enable Session Limit, otherwise all the Session Limit entries will be disabled. Limit: Session Limit Select a group to define the controlled user. Group: Enter the max. Sessions for the users. Max. Sessions: Description: Give a description for the entry. Status: Activate or inactivate the entry.
  • Page 66: Policy Routing

    Figure 3-38 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.
  • Page 67: Link Backup

    The following items are displayed on this screen: 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.
  • Page 68 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 3-40 Link Backup The following items are displayed on this screen: General WAN Ports:...
  • Page 69 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.
  • Page 70: Routing

    Figure 3-41 Protocol The following items are displayed on this screen: Protocol Name: Enter a name to indicate a protocol. The name will display in the drop-down list of Protocol on Access Rule page. Enter the Number of the protocol in the range of 0-255. Number: List of Protocol You can view the information of the entries and edit them by the Action buttons.
  • Page 71 Choose the menu Advanced→Routing→Static Route to load the following page. Figure 3-42 Static Route The following items are displayed on this screen: Static Route Destination: Enter the destination host the route leads to. Enter the Subnet Mask of the destination network. Subnet Mask: Next Hop: Enter the gateway IP address to which the packet should be sent next.
  • Page 72 You can set a Static Route entry: Enter the WAN IP address of R1 (116.31.88.16) in the Next Hop field on the Static Route page of TL-ER6120 as the following figure shown, then click the <Add> button to save the entry.
  • Page 73 (Variable Length Subnet Mask), simple plain text authentication, MD5 cryptograph authentication, CIDR (Classless Inter-Domain Routing) and multicast. TL-ER6120 supports both RIPv1 version and RIPv2 version, thus you can configure the RIP version based on the actual need to improve the network performance.
  • Page 74: Route Table

    Status: Enable or disable RIP protocol. RIP Version: Select RIPv1 or RIPv2. RIPv2 supports multicast and broadcast. If RIPv2 is enabled, set the Password Authentication according to the actual Password Authentication: network situation, and the password should not be more than 15 characters. All Interfaces: Here you can operate all the interfaces in bulk.
  • Page 75: Firewall

    The Destination of route entry. Destination: Gateway: The Gateway of route entry. The Flags of route entry. The Flags describe certain characteristics of the Flags: route. Logical Interface: The logical interface of route entry. The physical interface of route entry. Physical Interface: The Metric of route entry.
  • Page 76 Figure 3-45 IP-MAC Binding The following items are displayed on this screen: 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”.
  • Page 77: Arp Scanning

    List of Rules You can view the information of the entries and edit them by the Action buttons. The first entry in Figure 3-45 indicates: The IP address of 192.168.1.101 and MAC address of 00-19-66-83-53-CF have been bound and this entry is activated. Note: If all the entries in the binding list are disabled and “Permit the packets of IP-MAC Binding entries only”...
  • Page 78: Attack Defense

    Indicates that the IP and MAC address of this entry is already bound. To bind the entries in the list, check these entries and click the <Import> button, then the settings will take effect if the entries do not conflict with the existed entries. Note: If the local hosts suffered from ARP attack, you cannot add IP-MAC Binding entries on this page.
  • Page 79 Figure 3-48 Attack Defense The following items are displayed on this screen: 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.
  • Page 80: Mac Filtering

    not sure. Packet Anomaly Packet Anomaly refers to the abnormal packets. It is Defense: recommended to select all the Packet Anomaly Defense options. With this box checked, the Router will record the defense logs. Enable Attack Defense Logs: MAC Filtering 3.4.3 On this page, you can control the access to the Internet of local host by specifying their MAC addresses.
  • Page 81: Access Control

    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 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.
  • Page 82 URL Filtering Rule Select the range in which the URL Filtering takes effect: Object: ANY: URL Filtering will take effect to all the users. Group: URL Filtering will take effect to all the users in group. Select the mode for URL Filtering. “Keyword’’ indicates that all the Mode: URL addresses including the specified keywords will be filtered.
  • Page 83 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 3-51 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.
  • Page 84 Figure 3-52 Access Rule The following items are displayed on this screen: Access Rules Policy: Select a policy for the entry: Block: When this option is selected, the packets obeyed the rule will not be allowed to pass through the Router. Allow: When this option is selected, the packets obeyed the rule will be allowed to pass through the Router.
  • Page 85 DMZ refers to all the WAN, LAN or DMZ interfaces. Source: Select the Source IP Range for the entries, including the following three ways: IP/MASK: Enter an IP address or subnet mask. ("0.0.0.0/32" means any IP). Group: Select a predefined group of users. You can set the group on3.2.1 Group.
  • Page 86 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 3-52 indicates: The TELNET packets transmitted from the hosts within the network of 192.168.0.0/24 will be not allowed to pass through the Router at 8:00-20:00 from Tuesday to Saturday.
  • Page 87: App Control

    The following items are displayed on this screen: Service Enter a name for the service. The name should not be more than 28 Name: characters. The name will display in the drop-down list of Protocol on Access Rule page. Select the protocol for the service. The system predefined protocols Protocol: include TCP, UDP and TCP/UDP.
  • Page 88 Figure 3-54 Application Rules The following items are displayed on this screen: General Check the box before Enable Application Control to make the Application Control function take effect. The specified application used by the specified local users will be not allowed to access the Internet if the Application Control entry is enabled.
  • Page 89: Vpn

    The database refers to all the applications in the application list on the Application Rules page, you can download the latest database from http://www.tp-link.com, Click the <Browse> button and select the file, and then click the <Upgrade> button to upgrade the database.
  • Page 90: Ike

    As the packets are encapsulated and de-encapsulated in the Router, the tunneling topology implemented by encapsulating packets is transparent to users. The tunneling protocols supported by TL-ER6120 contain Layer 3 IPsec and Layer 2 L2TP/PPTP. 3.5.1 IKE In the IPsec VPN, to ensure a secure communication, the two peers should encapsulate and de-encapsulate the packets using the information both known.
  • Page 91 Figure 3-57 IKE Policy The following items are displayed on this screen: IKE Policy Policy Name: Specify a unique name to the IKE policy for identification and management purposes. The IKE policy can be applied to IPsec policy. Exchange Mode: Select the IKE Exchange Mode in phase 1, and ensure the remote VPN peer uses the same mode.
  • Page 92: Ike Proposal

    scenarios with lower requirement for identity protection. Local ID Type: Select the local ID type for IKE negotiation. IP Address: uses an IP address as the ID in IKE negotiation. FQDN: uses a name as the ID. The local WAN IP will be inputted automatically if IP Address Local ID: type is selected.
  • Page 93 Figure 3-58 IKE Proposal The following items are displayed on this screen: IKE Proposal Proposal Name: Specify a unique name to the IKE proposal for identification and management purposes. The IKE proposal can be applied to IPsec proposal. Select the authentication algorithm for IKE negotiation. Authentication: Options include: MD5: MD5 (Message Digest Algorithm) takes a...
  • Page 94: Ipsec

    AES192: Uses the AES algorithm and 192-bit key for encryption. AES256: Uses the AES algorithm and 256-bit key for encryption. DH Group: Select the DH (Diffie-Hellman) group to be used in key negotiation phase 1. The DH Group sets the strength of the algorithm in bits.
  • Page 95 Figure 3-59 IPsec Policy The following items are displayed on this screen: General You can enable/disable IPsec function for the Router here. IPsec Policy Specify a unique name to the IPsec policy. Up to 28 Policy Name: characters can be entered. Mode: Select the network mode for IPsec policy.
  • Page 96 host. Local Subnet: Specify IP address range on your local LAN to identify which PCs on your LAN are covered by this policy. It's formed by IP address and subnet mask. Specify IP address range on your remote network to Remote Subnet: identify which PCs on the remote network are covered by this policy.
  • Page 97 Phase1 is de-encrypted. Without PFS, the key in Phase2 is created based on the key in Phase1 and thus once the key in Phase1 is de-encrypted, the key in Phase2 is easy to be de-encrypted, in this case, the communication secrecy is threatened.
  • Page 98: Ipsec Proposal

    Outgoing SPI: Specify the Outgoing SPI (Security Parameter Index) manually. The Outgoing SPI here must match the Incoming SPI value at the other end of the tunnel, and vice versa. Authentication Specify the outbound AH Authentication Key manually if AH protocol is used in the corresponding IPsec Proposal. Key-Out: The outbound key here must match the inbound AH authentication key at the other end of the tunnel, and vice...
  • Page 99 Figure 3-60 IPsec Proposal The following items are displayed on this screen: IPsec Proposal Proposal Name: Specify a unique name to the IPsec Proposal for identification and management purposes. The IPsec proposal can be applied to IPsec policy. Select the security protocol to be used. Options include: Security Protocol: AH: AH (Authentication Header) provides data origin authentication, data integrity, and anti-replay services.
  • Page 100 for ESP authentication. Options include: MD5: MD5 (Message Digest Algorithm) takes a message of arbitrary length and generates a 128-bit message digest. SHA: SHA (Secure Hash Algorithm) takes a message less than the 64th power of 2 in bits and generates a 160-bit message digest.
  • Page 101: L2Tp/Pptp

    and the default gateway of remote peer are 172.30.70.151 and 172.30.70.161 respectively. Security protocol and other parameters for IPsec tunnel and the remote router should be configured the same. As Security Association is unidirectional, an ingoing SA and an outgoing SA are created to protect data flows for each tunnel after IPsec tunnel is successfully established.
  • Page 102 Figure 3-62 L2TP/PPTP Tunnel The following items are displayed on this screen: General Enable Specify whether to enable VPN-to-Internet function. If VPN-to-Internet: enabled, the VPN client is permitted to access the LAN of the server and Internet. Hello Interval: Specify the interval to send hello packets. L2TP/PPTP Tunnel Protocol: Select the protocol for VPN tunnel.
  • Page 103 tunnel. Server: In this mode, the Router responds the request from the remote client for establishing a tunnel. Account Name: Enter the account name of L2TP/PPTP tunnel. It should be configured identically on server and client. Enter the password of L2TP/PPTP tunnel. It should be Password: configured identically on server and client.
  • Page 104 IP Pool: Select the IP Pool Name to specify the address range for the server's IP assignment. This item is available for Server mode. Remote Subnet: Enter the IP address range of your remote network. (It's always the IP address range of LAN on the remote peer of VPN tunnel.) It’s the combination of IP address and subnet mask.
  • Page 105: Services

    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 ranges must not overlap. List of IP Pool In this table, you can view the information of IP Pools and edit them by the action buttons. 3.5.3.3 List of L2TP/PPTP Tunnel This page displays the information and status of the tunnels.
  • Page 106 3.6.1.1 General On this page, you can configure PPPoE function globally. Choose the menu Services→PPPoE Server→General to load the following page. Figure 3-65 General The following items are displayed on this screen: General PPPoE Server: Specify whether to enable the PPPoE Server function. Dial-up Access Only: Specify whether to enable the Dial-up Access Only function.
  • Page 107 Idle Timeout: Enter the maximum idle time. The session will be terminated after it has been inactive for this specified period. It can be 0-10080 minutes. If you want your Internet connection to remain on at all times, enter 0 in the Idle Timeout field.
  • Page 108 Figure 3-66 IP Address Pool The following items are displayed on this screen: 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.
  • Page 109 Figure 3-67 Account The following items are displayed on this screen: 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: Static: Select this option to assign a static IP address to the client.
  • Page 110: Exceptional Ip

    Status: Activate or inactivate the entry. MAC Binding: Select a MAC Binding type from the pull-down list. Options include: Disable: Select this option to disable the MAC Binding function. Manual: Select this option to bind the account to a MAC address manually.
  • Page 111: E-Bulletin

    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.
  • Page 112 Figure 3-70 E-Bulletin The following items are displayed on this screen: General Enable E-Bulletin: Specify whether to enable electronic bulletin function. Interval: Specify the interval to release the bulletin. Enable Logs: Specify whether to log the E-Bulletin. E-Bulletin Title: Enter a title for the bulletin. -107-...
  • Page 113: Dynamic Dns

    Content: Enter the content of the bulletin. Object: Select the object of this bulletin. Options include: 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 <...
  • Page 114 The Router, as a DDNS client, cannot provide DDNS service. Prior to using this function, be sure you have registered on the official websites of DDNS service providers for username, password and domain name. TL-ER6120 Router offers PeanutHull DDNS client, Dyndns DDNS client, NO-IP DDNS client and Comexe DDNS client.
  • Page 115 DDNS Status: Displays the current status of DDNS service Offline: DDNS service is disabled. Connecting: client is connecting to the server. Online: DDNS works normally. Authorization fails: The Account Name or Password is incorrect. Please check and enter it again. List of DynDNS Account In this table, you can view the existing DDNS entries or edit them by the Action button.
  • Page 116 DDNS Status: Displays the current status of DDNS service Offline: DDNS service is disabled. Connecting: client is connecting to the server. Online: DDNS works normally. Authorization fails: The Account Name or Password is incorrect. Please check and enter it again. List of No-IP Account In this table, you can view the existing DDNS entries or edit them by the Action button.
  • Page 117 DDNS Status: Displays the current status of DDNS service Offline: DDNS service is disabled. Connecting: client is connecting to the server. Online: DDNS works normally. Authorization fails: The Account Name or Password is incorrect. Please check and enter it again. Domain Name: Displays the domain names obtained from the DDNS server.
  • Page 118: Upnp

    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. Enter the Domain Name that you registered with your DDNS service provider.
  • Page 119: Maintenance

    After UPnP is enabled, all UPnP connection rules will be displayed in the list of UPnP Mapping. Up to 64 UPnP service connections are supported in TL-ER6120. The NO.1 entry in Figure 3-75 indicates: TCP data received on port 12856 of the WAN port in the Router will be forwarded to port 12856 in 192.168.0.101 server in LAN.
  • Page 120 Figure 3-76 Password The following items are displayed on this screen: 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. New Password: Enter a new password for the Router.
  • Page 121 General Web Management Port: Enter the Web Management Port for the Router. Telnet Management Port: Enter the Telnet Management Port for the Router. Web Idle Timeout: Enter a timeout period that the Router will log you out of the Web-based Utility after a specified period (Web Idle Timeout) of inactivity.
  • Page 122: Management

    3.7.1.3 Remote Management On this page you can configure the Remote Management function. This feature allows managing your Router from a remote location via the Internet. Choose the menu Maintenance→Setup→Remote Management to load the following page. Figure 3-78 Remote Management The following items are displayed on this screen: Remote Management Subnet/Mask:...
  • Page 123 3.7.2.2 Export and Import Choose the menu Maintenance→Management→Export and Import to load the following page. Figure 3-80 Export and Import The following items are displayed on this screen: Configuration Version Displays the current Configuration version of the Router. Export Click the <Export> 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.
  • Page 124: License

    Figure 3-82 Firmware Upgrade To upgrade the Router is to get more functions and better performance. Go to http://www.tp-link.com download the updated firmware. Type the path and file name of the update file into the “File” field. Or click the <Browse> button to locate the update file.
  • Page 125: Statistics

    Figure 3-83 License 3.7.4 Statistics 3.7.4.1 Interface Traffic Statistics Interface Traffic Statistics screen displays the detailed traffic information of each port and extra information of WAN ports. Choose the menu Maintenance→Statistics→Interface Traffic Statistics to load the following page. Figure 3-84 Interface Traffic Statistics The following items are displayed on this screen: Interface Traffic Statistics Interface:...
  • Page 126 Displays the rate for receiving data frames. Rate Rx: Rate Tx: Displays the rate for transmitting data frames. Packets Rx: Displays the number of packets received on the interface. Packets Tx: Displays the number of packets transmitted on the interface. Bytes Rx: Displays the bytes of packets received on the interface.
  • Page 127: Diagnostics

    Direction: Select the direction in the drop-down list to get the Flow Statistics of the specified direction. IP Traffic Statistics This table displays the detailed traffic information of corresponding PCs. Sorted by: Select the rule for displaying the traffic information. 3.7.5 Diagnostics 3.7.5.1 Diagnostics...
  • Page 128 Figure 3-86 Diagnostics The following items are displayed on this screen: Ping Destination IP/Domain: 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 <Start> 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.
  • Page 129 Tracert Destination IP/Domain: Enter destination IP address or Domain name here. Then select a port for testing, if Auto is selected, the Router will select the interface of destination automatically. After clicking the <Start> button, the Router will send Tracert packets to test the connectivity of the gateways during the journey from the source to destination of the test data and the results will be displayed in the box below.
  • Page 130: Time

    DNS Lookup: Enter the IP address of DNS server in Manual mode. 0.0.0.0 means DNS Lookup is disabled. List of WAN status Port: Displays the detected WAN port. Detection: Displays whether the Online Detection is enabled. WAN Status: Display the detecting results. Time 3.7.6 System Time is the time displayed while the Router is running.
  • Page 131: Logs

    Get GMT: When this option is selected, you can configure the time zone and the IP Address for the NTP Server. The Router will get GMT automatically if it has connected to a NTP Server. Time Zone: Select your local time. Primary/Secondary NTP Server: Enter the IP Address for the NTP Server.
  • Page 132 Send System Logs: Select Send System Logs and specify the server IP, then the new added logs will be sent to the specified server. The Logs of switch are classified into the following eight levels. Level Description Severity The system is unusable. emergencies Action must be taken immediately.
  • Page 133: Chapter 4 Application

    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 in the headquarters and the branch offices, and to transmit the commercial confidential data to its partners.
  • Page 134: Network Topology

    4.2 Network Topology 4.3 Configurations You can configure the Router via the PC connected to the LAN port of this Router. To log in to the Router, the IP address of your PC should be in the same subnet of the LAN port of this Router. (The default subnet of LAN port is 192.168.0.0/24.).
  • Page 135: Internet Connection

    4.3.1.1 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 <Save> button to apply. Figure 4-1 System Mode 4.3.1.2 WAN Mode Set the Router to work in the mode of dual WAN ports.
  • Page 136 Figure 4-3 WAN – Static IP 4.3.1.4 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 4-4 shown, and then click the <Add>...
  • Page 137: Vpn Setting

    To enable the hosts in the remote branch office (WAN: 116.31.85.133, LAN: 172.31.10.1) to access the servers in the headquarters, you can create the VPN tunnel via the TP-LINK VPN routers between the headquarters and the remote branch office to guarantee a secured communication. The following takes IPsec settings of the Router in the headquarters for example.
  • Page 138 Policy Name: IKE_1 Exchange Mode: Main IKE Proposal: proposal_IKE_1 (you just created) Pre-shared Key: aabbccddee SA Lifetime: 3600 DPD: Enable DPD Interval: Click the <Add> button to apply. Figure 4-7 IKE Policy Tips: For the VPN Router in the remote branch office, the IKE settings should be the same as the Router in -133-...
  • Page 139: Ipsec Policy

    the headquarters. IPsec Setting To configure the IPsec function, you should create an IPsec Proposal firstly. IPsec Proposal Choose the menu VPN→IPsec→IPsec Proposal to load the following page. Settings: Proposal Name: proposal_IPsec_1 Security Protocol: ESP Authentication: ESP Encryption: 3DES Click the <Save> button to apply. Figure 4-8 IPsec Proposal IPsec Policy Choose the menu VPN→IPsec→IPsec Policy to load the configuration page.
  • Page 140 WAN: WAN1 Remote Gateway: 116.31.85.133 Exchange Mode IKE Policy: IKE_1 IPsec Proposal: proposal_IPsec_1 (you just created) PFS: SA Lifetime: 3600 Click the <Add> button to add the new entry to the list and click the <Save> button to apply. Figure 4-9 IPsec Policy Tips: For the VPN Router in the remote branch office, the IPsec settings should be consistent with the Router in the headquarters.
  • Page 141 After the IPsec VPN tunnel of the two peers is established successfully, you can view the connection information on the VPN→IPsec→IPsec SA page. Figure 4-10 List of IPsec SA 4.3.2.2 PPTP VPN Setting IP Address Pool Choose the menu VPN→L2TP/PPTP→IP Address Pool to load the following page. Enter the Pool Name and the IP Address Range as the following figure shown.
  • Page 142: Network Management

    Tunnel: Client-to-LAN IP Pool: PPTP_Dialup_User (you just created) Click the <Save> button to apply. 4.3.3 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.
  • Page 143 Figure 4-11 Group Config User Choose the menu User Group→User to load the configuration page. Click the <Batch> button to enter the batch processing screen. Then continue with the following settings: Settings: Action: Start IP Address: 192.168.0.30 End IP Address: 192.168.0.50 Prefix Username: User...
  • Page 144 4.3.3.2 App Control Choose the menu Firewall→App Control→Control Rules to load the configuration page. Check the box before Enable Application Control and click <Save> to apply. Then continue with the following settings: Settings: Object: Group Group: group1 Click the <Application List> button and select the Application: applications desired to be blocked on the popup window.
  • Page 145 Figure 4-14 Bandwidth Setup 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 4-15 shows. The entered bandwidth value should be consistent with the actual bandwidth value. Bandwidth Control Rule Choose the menu Advanced→Traffic Control→Bandwidth Control to load the configuration page.
  • Page 146: Network Security

    Figure 4-16 Bandwidth Control Rule 4.3.3.4 Session Limit Choose the menu Advanced→Session Limit→Session Limit to load the configuration page. Check the box before Enable Session Limit and click the <Save> button to apply. Then continue with the following settings: Settings: Group: group1 Max.
  • Page 147 4.3.4.1 LAN ARP Defense You can configure IP-MAC Binding manually or by ARP Scanning. For the first time configuration, please bind most of the ARP information by ARP Scanning. For some special items not bound, you can bind them manually. Scan and import the entries to ARP List Specify ARP Scanning range.
  • Page 148 Choose the menu Firewall→Anti ARP Spoofing→IP-MAC Binding to load the configuration page. To add the host with IP address of 192.168.1.20 and MAC address of 00-11-22-33-44-aa to the list, you can follow the settings below: Settings: IP Address: 192.168.0.20 MAC Address: 00-11-22-33-44-aa Status: Activate...
  • Page 149: Traffic Monitoring

    4.3.4.3 Attack Defense Choose the menu Firewall→Attack Defense→Attack Defense to load the configuration page. Select the options desired to be enabled as Figure 4-21 shows, and then click the <Save> button. Figure 4-22 Attack Defense 4.3.4.4 Traffic Monitoring Port Mirror Choose the menu Network→Switch→Port Mirror to load the configuration page.
  • Page 150 Figure 4-23 Port Mirror 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 4-23 shows. Figure 4-24 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 <Save>...
  • Page 151 Figure 4-25 IP Traffic Statistics After all the above steps, the enterprise network will be operated based on planning. -146-...
  • Page 152: Chapter 5 Cli

    Chapter 5 CLI TL-ER6120 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.
  • Page 153 Figure 5-2 Connection Description 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 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.
  • Page 154 Figure 5-4 Port Settings 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. Figure 5-5 Connection Properties Settings -149-...
  • Page 155: Interface Mode

    Figure 5-6 Log in the Router 5.2 Interface Mode The CLI of TL-ER6120 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.
  • Page 156: Online Help

    User EXEC mode. As Figure 5-7 shown: Figure 5-7 Interface Mode 5.3 Online Help TL-ER6120 functions with CLI Online Help: Type a question mark to get all commands of this view and their brief description in either mode. ←Type ? TP-LINK >...
  • Page 157: Command Introduction

    TP-LINK # enable <cr> 5.4 Command Introduction TL-ER6120 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.
  • Page 158: Ip-Mac

    LAN port. Lan Ip: 192.168.0.1 Lan Mask: 255.255.255.0 Set the LAN IP address of the TP-LINK # ip set lan address 192.168.0.20 Router as 192.168.0.20. Operation succeeded! Indicates the operation is successful. It will be prompted if an error occurs.
  • Page 159 The parameters in the brackets are default setting and you can enter the actual parameters behind them. Press Enter key directly if there are no changes. ● TL-ER6120 connects to the FTP server using port 21 by default. ● 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.
  • Page 160: User

    Import the configuration file. TP-LINK # sys import config The steps are as the above Server address: [192.168.1.101] item shown. Username: [admin] Password: [admin] File name: [config.bin] Try to get the configuration file < config.bin > ... Get configuration file < config bin > succeed, file size is 7104 bytes.
  • Page 161: History

    Modify the password of the TP-LINK > user set password Guest. Enter old password: Enter new password: Confirm new password: Query the user name and TP-LINK # user get password Username: admin Administrator. Password: admin Modify the password of the TP-LINK # user set password Administrator.
  • Page 162: Exit

    View the history command. TP-LINK > history 1. history 2. sys show 3. history Clear the history command. TP-LINK > history clear 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.
  • Page 163: Appendix A Hardware Specifications

    Appendix A Hardware Specifications IEEE 802.3、IEEE 802.3u、IEEE 802.3x、TCP/ IP、DHCP、ICMP、NAT、 Standards PPPoE、SNTP、HTTP、DNS、L2TP、PPTP、IPsec One 10/100/1000M Auto-Negotiation WAN RJ45 port (Auto MDI/MDIX) Three adjustable 10/100/1000M Auto-Negotiation WAN/LAN RJ45 ports (Auto MDI/MDIX) Ports One 10/100/1000M Auto-Negotiation LAN RJ45 port (Auto MDI/MDIX) One Console Port 10Base-T: UTP/STP of Cat.
  • Page 164: Appendix Bfaq

    192.168.0.x ("x" is any number between 2 to 254) for the IP address and 255.255.255.0 for the Subnet Mask. Test the connection between your PC and TL-ER6120 via Ping command. If you still cannot access the configuration page, please restore your Router to its factory default settings and try to log in again.
  • Page 165 Q3: What can I do if the Router with the remote management function enabled cannot be accessed by the remote computer? Make sure that the IP address of the remote computer is in the subnet allowed to remotely access the router. 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”...
  • Page 166: Glossary

    Appendix C Glossary Glossary Description A technology that allows data to be sent or received over DSL (Digital Subscriber existing traditional phone lines. Line) Application Level Gateway (ALG) is application specific translation agent that allows an application on a host in one ALG (...
  • Page 167 Glossary Description H.323 allows dissimilar communication devices to communicate with each other by using a standardized communication H.323 protocol. H.323 defines a common set of CODECs, call setup and negotiating procedures, and basic data transport methods. The protocol used by Web browsers and Web servers to HTTP(Hypertext Transfer transfer files, such as text and graphic files.
  • Page 168 Glossary Description 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. Transmission Unit) Mechanism for reducing the need for globally unique IP NAT(Network Address addresses.
  • Page 169 Glossary Description processing and retransmission be handled by other protocols. Protocol) UPnP is a set of networking protocols for primarily residential UPnP(Universal Plug and networks without enterprise class devices that permits Play) networked devices. URL(Uniform Resource URL describes the access method and the location of an Locator)...

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