D-Link DSL-2740E User Manual Download

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DSL-2740E User Manual

3.3.8 DoS Settings

Denial-of-Service Attack (DoS attack) is a type of attack on a network that is

designed to bring the network to its knees by flooding it with useless traffic.

Choose

Advanced

DoS Settings

. The

DOS Settings

page shown in the

following figure appears. Select the

Enable DoS Prevention

checkbox, select the

options below, and click

Apply Changes

to finish.

Summary of Contents for DSL-2740E

Page 1: ...DSL 2740E User Manual ...

Page 2: ...ent from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help To assure continued compliance any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment Example use only shielded interface cables when connecting to computer or peripheral devices FCC Radiati...

Page 3: ...subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed 5 ATTACHMENT LIMITATIONS STATEMENT Notice This equipment meets telecommunications network protective operational and safety requirements as prescribed in the appropriate Terminal Equipment Technical Requirements document s This is confirmed by marking the equipment with the Industry Ca...

Page 4: ... utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas Caution Users should not attempt to make such connections themselves but should contact the appropriate electric inspection authority or electrician as appropriate ...

Page 5: ...rnet Setup 26 3 2 4 Wireless Setup 34 3 2 5 Time and Date 40 3 3 Advanced 42 3 3 1 Advanced Wireless 42 3 3 2 Access Control List 48 3 3 3 Port Triggering 52 3 3 4 Port Forwarding 54 3 3 5 DMZ 55 3 3 6 Parental Control 56 3 3 7 Filtering Options 60 3 3 8 DoS Settings 64 3 3 9 DNS 65 3 3 10 Dynamic DNS 67 3 3 11 Network Tools 69 3 3 12 Routing 81 3 3 13 NAT 85 3 4 Maintenance 89 3 4 1 System 89 3 4...

Page 6: ...2740E User Manual ii 3 4 6 Logout 98 3 5 Status 98 3 5 1 Device Info 98 3 5 2 Wireless Clients 100 3 5 3 DHCP Clients 101 3 5 4 ADSL Driver 101 3 5 5 Statistics 102 3 5 6 Route Information 103 3 6 Help 104 ...

Page 7: ... package Pay attention to the power load of the outlet or prolonged lines An overburden power outlet or damaged lines or plugs may cause electric shock or fire accidents Check the power cords regularly If you find any damage replace it at once Proper space left for heat dissipation is necessary to avoid damage caused by overheating to the device The long and thin holes on the device are designed f...

Page 8: ...ware is upgrading LAN 1 2 3 4 Green Off The Ethernet interface is not properly connected Blinking The Ethernet interface is properly connected and data is being transmitted On The Ethernet interface is properly connected but no data is being transmitted WLAN Green Blinking The WLAN function is enabled and data is being transmitted on the WLAN On The WLAN function is enabled but no data is being tr...

Page 9: ... up with the physical layer of the office end Internet Green Off The device is under the Bridge mode or powered off On A connection is set up and no traffic is detected Red On The authentication of the PPP dial up is failed or MER is failed to obtain the correct IP address Rear Panel Figure 2 Rear panel The following table describes the interface of the device Interface Button Description DSL RJ 1...

Page 10: ...ore the factory defaults 1 3 System Requirements A 10 baseT 100BaseT Ethernet card installed on your PC A hub or switch attached to several PCs through one of Ethernet interfaces on the device Operating system Windows Vista Windows 7 Windows 98SE Windows 2000 Windows ME or Windows XP Internet Explorer V5 0 or higher Netscape V4 0 or higher or Firefox 1 5 or higher 1 4 Features Various line modes E...

Page 11: ... server DMZ Two level passwords and user names Web user interface Telnet CLI System status display PPP session PAP and CHAP IP filter IP QoS Remote access control Line connection status test Remote management telnet and HTTP Backup and restoration of configuration file Ethernet interface supports crossover detection auto correction and polarity correction UPnP IPV6 ...

Page 12: ...nect to a wall phone port RJ 11 jack Modem Connect to the DSL port of the device Phone Connect to a telephone set Step 2 Connect a LAN port of the device to the network card of the PC through an Ethernet cable MDI MDIX Step 3 Plug one end of the power adapter to the wall outlet and the other end to the Power 12V DC IN port of the device Figure 3 displays the application diagram for the connection ...

Page 13: ...or DSL 2740U DSL 2740E 3 1 Accessing the Device The following is the detailed description of accessing the device for the first time Step 1 Open the Internet Explorer IE browser and enter http 192 168 1 1 Step 2 The Login page shown in the following figure appears Enter the user name and password The user name and password of the super user are admin and admin respectively ...

Page 14: ...sfully the page shown in the following figure divided into two parts appears This page displays a summary overview of the router including the system information DSL information LAN Configuration DNS information and WAN Configuration Figure 4 Device information 1 ...

Page 15: ...DSL 2740E User Manual 9 Figure 5 Device information 2 ...

Page 16: ...parameters When subscribing to a broadband service you should be aware of the method by which you are connected to the Internet Technical information about the properties of your Internet connection is provided by your Internet service provider ISP For example your ISP should inform you that you are connected to the Internet using a static or dynamic IP address and the protocol you use to communic...

Page 17: ...DSL 2740E User Manual 11 There are 5 steps to configure the device Click Next to continue Step 1 Change the device login password Step 2 Set the time and date ...

Page 18: ...12 Step 3 Configure the Internet connection If the internet service you subscribed is PPPoE or PPPoA you can choose the Protocol to be PPPoE or PPPoA Set the VPI and VCI Enter the user name and password provided by your ISP ...

Page 19: ...choose Protocol to be Dynamic IP The page shown in the following figure appears If the Protocol is Static IP you can choose Protocol to be Static IP The page shown in the following figure appears Enter the IP Address Subnet Mask Default Gateway and Primary DNS Server provided by your ISP ...

Page 20: ...DSL 2740E User Manual 14 If the Protocol is Bridge the page shown in the following figure appears ...

Page 21: ...DSL 2740E User Manual 15 Step 4 Configure the wireless network Step 5 Complete and apply the settings Click Apply to save the settings ...

Page 22: ...se the default settings and DHCP service to manage the IP settings for the private network The IP address of the device is the base address used for DHCP To use the device for DHCP on your LAN the IP address pool used for DHCP must be compatible with the IP address of the device The IP address available in the DHCP IP address pool changes automatically if you change the IP address of the device Yo...

Page 23: ...er Manual 17 3 2 2 1 LAN Interface Choose Setup Local Network LAN Interface The LAN Setting page shown in the following figure appears You may configure the LAN interface for example the IP address and subnet mask ...

Page 24: ...bnets LAN Port You may choose the LAN interface you want to configure Link Speed Duplex Mode You may select one mode from the drop down list 100Mbps FullDuplex 100Mbps Half Duplex 10Mbps FullDuplex 10Mbps Half Duplex and Auto Negotiation MAC Address Control It is the access control based on MAC address Select it and the host whose MAC address is listed in the Current Allowed MAC Address Table can ...

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Page 26: ...efix Mode Specify the RA feature prefix mode Auto the RA prefix will use WAN dhcp pd prefix Manual user will specify the prefix address length preferred time and valid time DHCPv6 Mode Specify the dhcpv6 server mode None close dhcpv6 server Manual dhcpv6 server is opened and user specifies the dhcpv6 server address pool and other parameters Auto dhcpv6 server is opened and it use WAN dhcp pd prefi...

Page 27: ...gn IP addresses IP default gateway and DNS servers to the host in Windows95 Windows NT and other operation systems that support the DHCP client IP Pool Range It specifies the first and last IP addresses in the IP address pool The router assigns IP address in the IP pool range to the host Max Lease Time The lease time determines the period that the host ...

Page 28: ... You can configure the DNS server IP addresses for DNS Relay Click the button Show Client to display the page Active DHCP Client Table as shown below It shows the IP addresses assigned to DHCP clients The following table describes the parameters and buttons in this page Field Description IP Address It displays the IP address assigned to the DHCP client from the router MAC Address It displays the M...

Page 29: ... host retains the assigned IP addresses before the IP addresses change Refresh Click it to refresh this page Click the button Set VendorClass IP Range to display the page Device IP Range Set In this page you can configure the IP address range based on the device type In the DHCP Mode field choose None The page shown in the following figure appears ...

Page 30: ...DSL 2740E User Manual 24 In the DHCP Mode field choose DHCP Relay The page shown in the following figure appears ...

Page 31: ... 3 2 2 4 DHCP Reserved Choose Setup Local Network DHCP Reserved The DHCP Static IP Configuration page appears This page lists the fixed IP MAC address on your LAN The device distributes the number configured to hosts on your network as they request Internet access The following table describes the parameters of this page Field Description IP Address Enter the specified IP address in the IP pool ra...

Page 32: ...eted Undo Click it to refresh this page DHCP Static IP Table It shows the assigned IP address based on the MAC address 3 2 3 Internet Setup 3 2 3 1 Channel Configuration Choose Setup Internet Setup Channel Config The Channel Configuration page appears You may configure the parameters for the channel operation modes of your ADSL Router ...

Page 33: ...DSL 2740E User Manual 27 ...

Page 34: ... Select it to enable Network Address Port Translation NAPT function If you do not select it and you want to access the Internet normally you must add a route on the uplink equipment Otherwise the access to the Internet fails Normally it is enabled Enable IGMP You can enable or disable Internet Group Management Protocol IGMP function 802 1q You can select Disable or Enable If enabled you need to en...

Page 35: ...P the router is a DHCP client the WAN IP address is assigned by the remote DHCP server Local IP Address Enter the IP address of WAN interface provided by your ISP Remote IP Address Enter the IP address of gateway provided by your ISP Netmask Enter the subnet mask of the local IP address Default Route Routing table entry is not clearly specified in the routing as to any network prefix forwarding ad...

Page 36: ...CC The ATM virtual circuit connection assigned for this PPP interface VPI VCI Login Name The user name provided by your ISP Password The password provided by your ISP Authentication Method You can choose AUTO CHAP or PAP Connection Type You can choose Continuous Connect on Demand or Manual Idle Time s If choose Connect on Demand you need to enter the idle timeout time Within the preset ...

Page 37: ... to enter the VLAN ID The value ranges from 1 to 4095 Source Mac address The MAC address you want to clone MAC Clone Click it to enable the MAC Clone function with the MAC address that is configured Apply Changes Click it to save the settings of this page temporarily Return Click it to return to the Channel Configuration page Undo Click it to refresh this page 3 2 3 2 ATM Settings Choose Setup Int...

Page 38: ... which cells can be transmitted along a connection in the ATM network Its value ranges from 1 to 65535 CDVT Cell delay variation tolerance CDVT is the amount of delay permitted between ATM cells in microseconds Its value ranges from 0 to 4294967295 SCR Sustained cell rate SCR is the maximum rate that traffic can pass over a PVC without the risk of cell loss Its value ranges from 0 to 65535 MBS Max...

Page 39: ...lation and capability section to be specified by your ISP Consult with your ISP to select the correct settings for each Click Apply Changes to finish 3 2 3 4 PVC Auto Search Choose Setup Internet Setup PVC Auto Search The Auto PVC Configuration page appears You may configure PVC auto detect function Here you can add delete auto PVC search table ...

Page 40: ... Choose Setup Wireless Setup Wireless Basics The Wireless Basic Settings page appears You may configure the parameters for wireless LAN clients which may connect to your access point Here you may change wireless encryption settings as well as wireless network parameters ...

Page 41: ...modem You can choose from the drop down list Mode Choose the network model of the modem which is varied according to the software By default the network model of the modem is AP SSID The service set identification SSID is a unique name to identify the modem in the wireless LAN Wireless stations associating to the modem must have the same ...

Page 42: ...nterference and degrading performance occurs when radio signal from different APs overlap Radio Power Percent You can choose the transmission power of the radio signal The default one is 100 It is recommended to choose the default value100 Show Active Clients Click it to view the information of the wireless clients connected to the modem Channel Width Select the appropriate band of 20MHZ 20 40MHZ ...

Page 43: ... access to your wireless network The following table describes the parameters of this page Field Description Encryption Configure the wireless encryption mode You can choose None WEP WPA TKIP WPA AES WPA2 AES WPA2 TKIP or WPA2 Mixed Wired equivalent privacy WEP encrypts data frames before transmitting over the wireless network Wi Fi protected access WPA is a subset of the IEEE802 11i security spec...

Page 44: ...uthentication Mode Select Personal Pre Shared Key enter the pre shared key in the Pre Shared Key field Select Enterprise RADIUS enter the port IP address and password of the Radius server You need to enter the username and password provided by the Radius server when the wireless client connects the modem If the encryption is set to WEP the modem uses 802 1 X authentication which is Radius authenti...

Page 45: ... choose ASCII 13 characters or Hex 26 characters Default Tx Key Choose the index of WEP Key You can choose Key 1 Key 2 Key 3 or Key 4 Encryption Key 1 to 4 The Encryption keys are used to encrypt the data Both the modem and wireless stations must use the same encryption key for data transmission If you choose 64 bit and ASCII 5 characters enter any 5 ASCII characters If you choose 64 bit and Hex 1...

Page 46: ... of this page permanently click Save in the lower left corner Click Apply Changes to save the settings 3 2 5 Time and Date Choose Setup Time and Date The System Time Configuration page appears In the page you can configure update and maintain the correct time on the internal system clock You can set the time zone that you are in and the Network Time Protocol NTP server You can also configure dayli...

Page 47: ...tically with the Internet or your own computer you may select Set Time Manually Copy Computer Time or Set NTP Server Manually Get GMT Time Synchronize to Greenwich Mean Time When the mode is set to Set NTP Server Manually the following page will appear The following table describes the parameters in this page Field Description State Select Enable to synchronize the time automatically with Internet...

Page 48: ...d not to change the defaults as incorrect settings may reduce the performance of your wireless radio The default settings provide the best wireless radio performance in most environments 3 3 1 1 Advanced Settings Choose Advanced Advanced Wireless Wireless Advanced The page shown in the following figure appears These settings are only for more technically advanced users who have sufficient knowledg...

Page 49: ...which help improve performance in the presence of radio frequency RF interference RTS Threshold Request to Send Threshold Determines the packet size of a transmission through the use of the router to help control traffic flow Beacon Interval A packet of information that is sent from a connected device to all other devices where it announces its ...

Page 50: ...yclic Redundancy Check block for communication between the router and wireless clients High network traffic areas should select Short preamble type Broadcast SSID With Disabled selected no wireless clients will be able to see your wireless network when they scan to see what s available Click Apply Changes to save the settings 3 3 1 2 Access Control Choose Advanced Advanced Wireless Access Control ...

Page 51: ...e modem Set the Wireless Access Control Mode to Deny Listed to enable black list function The devices whose MAC addresses are listed in the Current Access Control List are denied to access the modem 3 3 1 3 WPS Choose Advanced Advanced Wireless WPS The page shown in the following figure appears With this feature your wireless client automatically synchronizes its setting and connects to the Access...

Page 52: ... modem to start connection The client will automatically establish the connection with the modem through the encryption mode and you need not to enter the key For the other method the wireless client generates PIN In the above figure enter PIN of the wireless client in the Client PIN Number field then click Start PIN to establish the connection Note The wireless client establishes the connection w...

Page 53: ... The page shown in the following figure appears In this page you can set virtual access points VAP its SSID and authentication type The device supports four virtual access points VAPs It is a unique name to identify the modem in the wireless LAN Wireless stations associating to the ...

Page 54: ...ed to open multiple ports or a range of ports in your router and redirect data through those ports to a single PC on your network 3 3 2 1 Access Control List Choose Advanced Access Control List Access Control List The page shown in the following figure appears In this page you can permit the data packets from LAN or WAN to access the router You can configure the IP address for Access Control List ...

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Page 56: ...s of the specified interface Only the IP address that is in the same network segment with the IP address of the specified interface can access the router Services Allowed You can choose the following services from LAN Web Telnet SSH FTP TFTP SNMP and PING You can also choose all the services Add After setting the parameters click it to add an entry to the Current ACL Table Reset Click it to refres...

Page 57: ... interface You can select LAN or WAN In this example WAN is selected WAN Setting You can choose Interface or IP Address WAN Interface Choose the interface that permits data packets from WAN to access the router Services Allowed You can choose the following services from WAN Web Telnet SSH FTP TFTP SNMP and PING You can also choose all the services ...

Page 58: ...configuration method refer to 3 3 2 1 Access Control List 3 3 3 Port Triggering Choose Advanced Port Triggering The page shown in the following figure appears Port Triggering is a special form of Port Forwarding in which it requires an outgoing connection before allowing incoming connections on a single or multiple ports Port Triggering is mostly used when your computer is behind a NAT router It g...

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Page 60: ...k the Apply changes button to finish 3 3 4 Port Forwarding This function is used to open ports in your device and redirect data through those ports to a single PC on your network WAN to LAN traffic It allows remote users to access services on your LAN such as FTP for file transfers or SMTP and POP3 for e mail The device accepts remote requests for these services at your global IP address It uses t...

Page 61: ...o button and type in a service name Configure the Protocol WAN Setting WAN Interface WAN Port LAN Open Port and LAN IP Address Click the Apply changes button to finish 3 3 5 DMZ DMZ is the abbreviation of the Demilitarized Zone Since some applications are not compatible with NAT the device supports the use of a DMZ IP address for a single host on the LAN This IP address is not protected by NAT and...

Page 62: ...Internet communication If this computer obtains its address automatically using DHCP then you may want to make a static reservation on the Setup Local Network DHCP Reserved page so that the IP address of the DMZ computer does not change Click Apply to save the settings 3 3 6 Parental Control You may create a list of websites that you would like the devices on your network to be denied access to UR...

Page 63: ...L Block The URL Block page shown in the following figure appears You may deny certain websites from being accessed during the schedule you specified Here you can add delete filtered URL Note To use this feature the time of router must be correct Please set in 3 2 5 Time and Date ...

Page 64: ... Schedule Mode you may select an existing schedule schedule for when the rule will be enabled or manually set a schedule After setting click Add Filter to add the URL into the URL Blocking Table To add schedules refer to 3 3 6 3 Schedules ...

Page 65: ...DSL 2740E User Manual 59 3 3 6 2 Online Time Limit Choose Advanced Parental Control Online Time Limit The ONLINE TIME LIMIT page shown in the following figure appears ...

Page 66: ...e schedule a name that is meaningful to you such as Weekday rule Set the Days and time field and click Add Rules to save the new rule in the following Rules Table 3 3 7 Filtering Options Filters can be configured to manage your incoming and outgoing traffic 3 3 7 1 IP Port Filter When you use the Port Triggering or Port Forwarding features to open specific ports to traffic from the Internet you co...

Page 67: ...s your LAN through the ports that you have opened Choose Advanced Filtering Options IP Port Filter The IP Port Filtering page shown in the following figure appears Direction Upstream Downstream means packets outgoing incoming from to router The Source IP addresses are LAN side WAN side addresses and the Destination IP addresses are WAN side LAN side addresses Select the rule ...

Page 68: ...a finished rule in the Rules List The Current Filter Table shows detailed information about each created IP filter Note The settings only apply when the firewall is enabled 3 3 7 2 IPv6 Port Filter Choose Advanced Filtering Options IPv6 Port Filter The IP Port Filtering page shown in the following figure appears You may restrict certain types of ipv6 data packets between LAN side and WAN side ...

Page 69: ...refer to 3 3 7 1IP Port Filter 3 3 7 3 MAC Filter Choose Advanced Filtering Options MAC Filter The MAC Filtering page shown in the following figure appears You may create a list of MAC addresses that you would either like to allow or deny access to your network ...

Page 70: ...ttack on a network that is designed to bring the network to its knees by flooding it with useless traffic Choose Advanced DoS Settings The DOS Settings page shown in the following figure appears Select the Enable DoS Prevention checkbox select the options below and click Apply Changes to finish ...

Page 71: ...DSL 2740E User Manual 65 3 3 9 DNS Domain Name System DNS is an Internet service that translates the URL domain name into the corresponding IP address Since URL Domain Names are ...

Page 72: ... of DNS servers for DNS Relay The following table describes the parameters and buttons of this page Field Description Attain DNS Automatically Select it the router accepts the first received DNS assignment from one of the PPPoA PPPoE or MER enabled PVC s during the connection establishment Set DNS Manually Select it and enter the IP addresses of the primary and secondary DNS server Apply Changes C...

Page 73: ...E or MER enabled PVC s during the connection establishment Set DNS Manually Select it enter the IP addresses and choose the WAN interface of the primary the secondary and the tertiary DNS server Interface The router accepts received packet assignment from one of the PPPoA PPPoE or MER enabled PVC s Apply Changes Click it to save the settings of this page Reset Selected Click it to start configurin...

Page 74: ...DHCP so locating a specific host on the LAN using the standard DNS is difficult For example if you are running a public web server or VPN server on your LAN DDNS ensures that the host can be located from the Internet even if the public IP address changes DDNS requires that an account be set up with one of the supported DDNS service providers DyndDNS org or dlinkddns com Choose Advanced Dynamic DNS...

Page 75: ...ware Forbidden ARP Bindind and Client Limit 3 3 11 1Port Mapping Port Mapping supports a single LAN port or multiple LAN ports to be formed as a group and mapped to a PVC which is associated w a VLAN As a result each group of LAN ports will perform as an independent logical network like a broadcast domain among whom traffic broadcast would be prevented This feature is useful while you would like t...

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Page 77: ...cted interfaces will be removed from their existing groups and added to the new group 3 3 11 2IGMP Proxy IGMP allows support for efficient multicasting transmission of identical content such as multimedia from a source to a number of recipients IGMP proxy enables the system to issue IGMP host messages on behalf of hosts that the system discovered through standard IGMP interfaces The system acts as...

Page 78: ...d Last Member Query Count This parameter specifies the times the device sends the query message Query Interval The device sends query messages to check IGMP user periodically The unit is second Query Response Interval The device waits for the IGMP user s reply The unit is 100 millisecond Group Leave Delay The duration for the modem to cease forwarding multicast packets after a corresponding IGMP L...

Page 79: ...feature for sensitive applications such as VoIP whereby it will assist in preventing dropped calls Large amounts of non critical data can be scaled so that they do not affect sensitive real time applications such as VoIP or Streaming Choose Advanced Network Tools IP QoS The IP QoS page shown in the following figure appears Step 1 Enable IP QoS and click Apply Changes to enable IP QoS function ...

Page 80: ...t provides compatibility among networking equipment software and peripherals This router has optional UPnP capability and can work with other UPnP devices and software The system acts as a daemon when you enable UPnP Leave the UPnP option enabled as long as the LAN has other UPnP applications Choose Advanced Network Tools UPnP The UPnP Configuration page shown in the following figure appears ...

Page 81: ... and set configuration parameters It enables a management station to configure monitor and receive trap messages from network devices Choose Advanced Network Tools SNMP The SNMP Protocol Configuration page shown in the following figure appears You may change the settings for system description trap IP address and community name ...

Page 82: ...assword to read the information of this router Community Name Read Write The network administrators must use this password to configure the information of the router 3 3 11 6TR 069 TR 069 is a WAN management protocol It is a bidirectional SOAP HTTP based protocol providing the communication between the ADSL router and an Auto Configuration Server ACS to monitor status and performance and to set co...

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Page 84: ...d by TR 069 service Debug Show Message Select Enable to display ACS SOAP messages on the serial console CPE sends GetRPC Select Enable the router contacts the ACS to obtain configuration updates Skip MReboot Specify whether to send an MReboot event code in the inform message Delay Specify whether to start the TR 069 program after a short delay Auto Execution Specify whether to automatically start ...

Page 85: ... application select the application you want to prohibit and input a single IP address or IP addresses in range When Single IP is selected IP 0 0 0 0 represent for any IP In this situation all PCs connected to this router will deny the selected software The following table describes the parameters and buttons of this page Field Description Current Forbidden Software List A list of currently forbid...

Page 86: ... page Field Description IP Address An IP address to be bound Mac Address An MAC address to be bound Add Click this icon to add an ARP binding Delete Selected Delete a selected setting from the list Undo Reconfigure the above setting ARP Binding Table A list of all the current ARP binding settings 3 3 11 9Client Limit Choose Advanced Network Tools Client Limit The Client Limit Configuration page sh...

Page 87: ... 3 12 Routing 3 3 12 1Static Route Choose Advanced Routing Static Route The Routing Configuration page shown in the following figure appears This page is used to configure the routing information You may add or delete IP routes ...

Page 88: ...e specified route Add Route Click it to add the new static route to the Static Route Table Update Select a row in the Static Route Table and modify the parameters Then click it to save the settings temporarily Delete Selected Select a row in the Static Route Table and click it to delete the row Show Routes Click it the IP Route Table appears You can view a list of destination routes commonly acces...

Page 89: ... the parameters and buttons of this page Field Description Destination Enter the IPv6 address of the destination device Prefix Length Enter the prefix length of the IPv6 address Next Hop Enter the IP address of the next hop in the IPv6 route to the destination address Interface The interface for the specified route Add Route Click it to add the new static route to the IPv6 Static Route Table Delet...

Page 90: ... Routing RIP The RIP Configuration page shown in the following figure appears The following table describes the parameters and buttons of this page Field Description RIP Select Enable the router communicates with other RIP enabled devices Apply Click it to save the settings of this page Interface Choose the router interface that uses RIP Receive Version Choose the interface version that receives R...

Page 91: ...e RIP2 indicates the router multicasts RIP2 messages only Add Click it to add the RIP interface to the Rip Config List Delete Select a row in the Rip Config List and click it to delete the row 3 3 13 NAT Under this menu NAT ALG Application Layer Gateway NAT Exclude IP NAT Forwarding FTP ALG Config and NAT IP Mapping can be performed 3 3 13 1NAT ALG Choose Advanced NAT NAT ALG The NAT ALG and Pass ...

Page 92: ... IP Choose Advanced NAT NAT Exclude IP The NAT EXCLUDE IP page shown in the following figure appears In the page you can configure some source IP addresses which use the purge route mode when accessing the Internet through the specified interface ...

Page 93: ...irewall Under 1483MER or 1483Routed mode if NAPT Network Address Port Translation is enabled the Local IP Address is configured as 192 168 1 3 and the Remote IP Address is configured as 202 32 0 2 the PC with the LAN IP192 168 1 3 will use 202 32 0 2 when it is connected to the Internet via the router without NAPT control The following table describes the parameters and buttons of this page Field ...

Page 94: ...hen the FTP server connection port is not a port 21 the FTP ALG module will be informed to monitor other TCP ports to ensure NAT pass through of FTP Choose Advanced NAT FTP ALG Config The FTP ALG Configuration page shown in the following figure appears The following table describes the parameters and buttons of this page Field Description FTP ALG port Set an FTP ALG port Add Dest Ports Add a port ...

Page 95: ... a specified source IP address from LAN so one packet whose source IP is in range of the specified address will select one IP address from the pool for NAT 3 4 Maintenance 3 4 1 System Choose Maintenance System The page shown in the following figure appears In this page you can reboot your router or save your router configuration to a file on your computer in case you have to reset your router to ...

Page 96: ...ings that were in effect at the time the router was shipped from the factory All settings will be lost If you want to save your router configuration settings use the Backup Settings option below Save and reboot This will save all your settings and restart the router Back settings Save your configurations in a file on your computer so that it may be accessed again later if your current settings are...

Page 97: ...ation that will be helpful for D Link technicians should you require any technical support The procedure for updating the firmware is as follows Step 1 Click Browse to search the file Step 2 Click Update Firmware to update the configuration file Step 3 Wait for the router to reboot This can take another minute or more Note Some firmware updates reset the configuration options to the factory defaul...

Page 98: ...sswords of the router The password you choose should be between 1 and 16 characters in length If you forget your device password the only solution is to reset your router to factory default settings and you will lose all your device configuration settings The following table describes the parameters and buttons of this page Field Description Privilege Root The root account is fixed having full acc...

Page 99: ...ing figure appears This page allows you to ping a Host to test whether your router can be connected to the netwrok The following table describes the parameter and button of this page Field Description Host Enter the valid IP address or domain name Ping Click it to start to Ping 3 4 4 2 Ping6 Choose Maintenance Diagnostics Ping6 The page shown in the following figure appears The target Address can ...

Page 100: ...lect an interface through which the Ping6 diagnosis is performed 3 4 4 3 Traceroute Choose Maintenance Diagnostics Traceroute The page shown in the following figure appears You can track the route path through the information which is from your computer to the other side host on the Internet The following table describes the parameters and buttons of this page Field Description ...

Page 101: ...ket size DSCP Differentiated Services Code Point You should set a value between 0 63 MaxHopCount Maximum number of routes Interface Select the interface Traceroute Click start traceroute 3 4 4 4 ADSL Choose Maintenance Diagnostics ADSL The page shown in the following figure appears It is used for ADSL tone diagnostics Click Start to start ADSL tone diagnostics ...

Page 102: ...onnection 3 4 5 System Log Choose Maintenance System Log The page shown in the following figure appears This section when enabled allows the system to begin logging events based on the selected log level The router can only keep a limited number of log entries due to router memory constraints If you have an external SYSLOG server you may choose to configure external logging and all log entries wil...

Page 103: ... the system is likely to result in a module abnormity the system generates an Error log Notice When the system is under attack or logged in or port status changes the system generates a Notice log Remote Log Host Send system log to remote host maybe a domain or an IP Save Log to File You can save current log table to a file ...

Page 104: ...ration page 3 5 Status You can view the system information and monitor performance 3 5 1 Device Info Choose Status Device Info The page shown in the following figure divided into two parts appears This page displays a summary overview of your router including system information DSL information LAN Configuration DNS information WAN Configuration and so on ...

Page 105: ...DSL 2740E User Manual 99 Figure 6 Device information 1 ...

Page 106: ...information 2 3 5 2 Wireless Clients Choose Status Wireless Clients The page shown in the following figure appears This table shows the MAC address transmission reception packet counters and encrypted status for each associated wireless client ...

Page 107: ...client devices that obtain IP addresses from the device You can view the host name IP address MAC address and time expired s 3 5 4 ADSL Driver Choose Status ADSL Driver The page shown in the following page appears This page displays all ADSL statistics information including link down or on downstream and upstream type line coding and so on ...

Page 108: ...ual 102 3 5 5 Statistics Choose Status Statistics The page shown in the following page appears This is a summary of the number of packets that have passed between the WAN and the LAN since the router was last initialized ...

Page 109: ...DSL 2740E User Manual 103 3 5 6 Route Information Choose Status Route Info The page shown in the following page appears This table shows a list of destination routes commonly accessed by your network ...

Page 110: ...104 3 6 Help In the main interface click Help tab to enter the Help menu as shown in the following figure This section provides detailed configuration information for the device Click a link to view corresponding information ...

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