User Manual DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch October 2012
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch User Manual Contents Chapter 1. Introduction..........................................4 Contents and Audience.......................................................4 Conventions.................................................................4 Document Structure..........................................................4 Chapter 2. Overview..............................................5 General Information.....................................
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch User Manual Advanced...................................................................60 SNMP.....................................................................60 UPnP.....................................................................62 Interface Grouping.......................................................63 DDNS.....................................................................65 DNS.................................................
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Introduction User Manual CHAPTER 1. INTRODUCTION Contents and Audience This manual describes the router DSL-2750U and explains how to configure and operate it. This manual is intended for users familiar with basic networking concepts, who create an in-home local area network, and system administrators, who install and configure networks in offices. Conventions Example ! Description text The body text of the manual.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual CHAPTER 2. OVERVIEW General Information DSL-2750U is a multifunction 3G/ADSL/Ethernet router with Wi-Fi and built-in switch. The router allows accessing the Internet via 3G GSM network (with a 3G USB modem1,2 connected). In addition, the device allows accessing the Internet via ADSL technology and via Ethernet technology.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual Specifications Interfaces: • ADSL: 1 RJ-11 port • LAN: 4 RJ-45 10/100BASE-TX Fast Ethernet ports with auto-MDI/MDIX • WLAN: built-in 802.11b/g/n wireless interface • USB: USB 2.0 type A port. Wireless Network: • IEEE 802.11n standard*, IEEE 802.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual • Ethernet: ◦ IPoE ◦ PPPoE ◦ Bridge. ATM/PPP Protocols: • Bridged and routed Ethernet encapsulation • VC-based or LLC-based multiplexing • ATM Forum UNI3.1/4.0 PVC (up to 8 PVCs) • ATM Adaptation Layer Type 5 (AAL5) • ITU-T I.610 OAM F4/F5 loopback • ATM QoS • PPP over ATM (RFC 2364) • PPP over Ethernet (PPPoE) • Keep-alive for PPP connections.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual • Intrusion detection system • DMZ • Port Triggering. QoS: • Interface grouping • 3 priority queues. USB: • USB modem: o Enabling/disabling PIN code check o Changing PIN code. • Print server • Shared access to USB storage (Samba).
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual Product Appearance Front Panel Figure 1. Front panel view. LED Power Mode Description Solid green The router is powered on. No light The router is powered off. Solid red A malfunction of the router. Solid green A device is connected to the port of the router (for the LAN port configured as the WAN port: the router is connected to an Ethernet line).
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual Back Panel Figure 2. Back panel view. Port DSL LAN 1-4 Description A DSL port to connect the router to the telephone line. 4 Ethernet ports to connect Ethernet devices. One port can be used to connect to a private Ethernet line. USB A USB port to connect a USB modem, printer, or storage. WPS A button to quickly add wireless devices to the router's WLAN.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual Delivery Package The following should be included: • Router DSL-2750U • Power adapter DC 12V/1A • RJ-11 telephone cable • Straight-through Ethernet cable (CAT 5E) • Splitter • “Quick Installation Guide” (brochure). The “User Manual” and “Quick Installation Guide” documents in Russian and English are available on D-Link website (see ftp.dlink.ru/pub/ADSL/DSL-2750U/Description/).
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual CHAPTER 3. INSTALLATION AND CONNECTION Before You Begin Please, read this manual prior to installing the device. Make sure that you have all the necessary information and equipment. Operating System Configuration of the multifunction 3G/ADSL/Ethernet router DSL-2750U (hereinafter referred to as “the router”) is performed via the built-in web-based interface.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Connecting to PC (in OS Windows XP) PC with Ethernet Adapter 1. Make sure that your PC is powered off. 2. Connect an Ethernet cable between any of four Ethernet ports located on the back panel of the router and the Ethernet port of your PC. 3. To connect via 3G network: connect your USB modem to the USB port located on the back panel of the router.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Figure 3. The Network Connections window. 3. In the Local Area Connection Properties window, on the General tab, in the This connection uses the following items section, select the Internet Protocol (TCP/IP) line. Click the Properties button. Figure 4. The Local Area Connection Properties window. 4. Select the Obtain an IP address automatically radio button. Click the OK button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Figure 5. The Internet Protocol (TCP/IP) Properties window. Click the ОК button. Now your computer is configured to obtain an IP address automatically. PC with Wi-Fi Adapter 1. To connect via 3G network: connect your USB modem to the USB port located on the back panel of the router.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Configuring Wi-Fi Adapter 1. Click the Start button and proceed to the Control Panel > Network and Internet Connections > Network Connections window. 2. Select the icon of the wireless connection and make sure that your Wi-Fi adapter is on. Figure 6. The Network Connections window. 3. Search for available wireless networks. 4.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Connecting to Web-based Interface When you have configured your computer, you can access the web-based interface and configure needed parameters (for example, create an interface to connect to the Internet, configure the connection to 3G network, change the parameters of the wireless network, specify the settings of the firewall, edit the password for the administrator account, etc.) 1.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Figure 9. The system statistics page. ! For security reasons, it is strongly recommended to change the administrator password upon initial configuration of the router. To do this, proceed to the System / Administrator password page. The web-based interface of the router is multilingual. Select a needed language from the menu displayed when the mouse pointer is over the Language caption.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Saving and Restoring Settings ! Note that you should regularly save the changes of the router's settings to the nonvolatile memory. The router's web-based interface displays the notification on unsaved changes at the top of the page. Figure 11. The notification on unsaved changes. You can save the router's settings via the top-page menu displayed when the mouse pointer is over the System caption.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual CHAPTER 4. CONFIGURING INTERFACE VIA WEB-BASED Status This menu displays data on the current state of the router. The following data are represented: DSL connection status, active WAN connections, IP addresses leased by DHCP server, the routing table, network statistics, and data on network devices connected to the router.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual DSL Status The information shown on the tabs of the Status / DSL status page can be used for troubleshooting and diagnosing connection problems. Figure 14. The Status / DSL status page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual WAN Status The Status / WAN status page displays active WAN connections. Figure 15. The Status / WAN status page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual DHCP The Status / DHCP page displays the information on computers that have been identified by hostnames and MAC addresses and have got IP addresses from the DHCP server of the device, as well as the IP address expiration periods (the lease time). Figure 16. The Status / DHCP page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Routing Table The Status / Routing table page displays the information on routes. The table contains destination IP addresses, gateways, subnet masks, and other data. Figure 17. The Status / Routing table page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual LAN Clients On the Status / LAN clients page, you can view data on network devices connected to the router. The page displays devices connected to the wireless network of the router, devices connected to the built-in switch of the router, and devices accessing the web-based interface of the router. Figure 18. The Status / LAN clients page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Net In this menu you can configure basic parameters of the router's local area network and configure connection to the Internet (a WAN connection). Connections On the Net / Connections page, you can create and edit connections used by the router. By default, the LAN connection is configured in the system. It corresponds to the local interface of the router (br0).
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Editing Local Interface Parameters To edit the parameters of the router's local area network, left-click the LAN connection on the Net / Connections page. On the Main tab, you can configure basic parameters of the router's LAN. Figure 20. Basic parameters of the router's LAN.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description General settings Name Connection Type Enable Direction A name for this connection. The type of network protocol used by this connection – IPoE. The checkbox enabling this connection. The direction of this connection. Physical layer Physical interface The physical interface to which this connection is assigned – br0. IP settings IP Address The router's IP address.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description An operating mode of the router's DHCP server. Mode Enable: the router assigns IP addresses to clients automatically in accordance with specified parameters. When this value is selected, the Start IP, End IP, and the Lease time fields are displayed on the tab. If the DHCP server is enabled, you can also specify MACIP pairs on the Static DHCP tab.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual On the Static DHCP tab, you can specify MAC address and IP address pairs. The tab is active when the router's DHCP server is enabled. Figure 22. The tab for configuring MAC-IP pairs. To create a MAC-IP pair (set a fixed IP address in the local area network for a device with a certain MAC address), click the Add button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Creating 3G WAN Connection If the PIN code check is enabled for the SIM card inserted into your USB modem, then prior to creating a 3G WAN connection, proceed to the USB modem menu and enter the PIN code on the page displayed (see the USB Modem section, page 85). Figure 23. The page for creating a new connection. The General settings and Physical layer sections.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 24. The page for creating a new connection. The PPP settings and Miscellaneous sections. Parameter Description PPP settings PPP Username A username (login) to connect to the network of the operator. Without authorization Select the checkbox if your operator does not require authorization. Password A password to connect to the network of the operator.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter MTU Description The maximum size of units transmitted by the interface. Optional. Keep Alive Select the checkbox if you want the router to keep you connected to the network of your operator even when the connection has been inactive for a specified period of time. When the checkbox is selected, the LCP interval and LCP fails fields are available. Specify the required values.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Creating ADSL WAN Connection Figure 25. The page for creating a new connection. The General settings, Physical layer and VLAN settings sections.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description General settings Name A name for connection for easier identification. A type of network protocol to be used by the connection. Available values: Connection Type Enable Direction • PPPoA • PPPoE • IPoE • IPoA • Bridge. Select the checkbox to enable the connection. The direction of this connection.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description CBR (Constant Bit Rate): This service is used for applications that require a constant data rate. It is mostly used for transferring uncompressed audio and video, e.g. videoconferencing, interactive audio (telephony), audio/video distribution (television, distance education, e-shops), and retrieval (video-on demand, audio libraries).
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description Miscellaneous Enable IGMP Multicast Select the checkbox to allow multicast traffic from the external network (e.g. video streaming) to be received. NAT Select the checkbox if you want one WAN IP address to be used for all computers of your LAN. Firewall Select the checkbox to enable protection against ARP and DDoS attacks.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The PPP settings section is displayed for the PPPoE and PPPoA connection types. Figure 27. The page for creating a new connection. The PPP settings section. Parameter Description PPP settings PPP Username Without authorization Password A username (login) to access the Internet. Select the checkbox if you don't need to enter a username and password to access the Internet.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description Password confirmation The confirmation of the entered password (to avoid mistypes). Authentication algorithm Select a required authentication method from the drop-down list or leave the AUTO value. Service name The name of the PPPoE authentication server.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The IP settings section is displayed for the IPoE and IPoA connection types. Figure 28. The page for creating a new connection. The IP settings section. Parameter Description IP settings Displayed for the IPoE type only. Obtain an IP address automatically Select the checkbox to configure automatic IP address assignment for this connection.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Creating Ethernet WAN Connection Prior to creating an Ethernet WAN connection, specify a LAN port that will be used as the WAN port (see the Interface Grouping section, page 63). Figure 29. The page for creating a new connection. The General settings and Physical layer sections. Parameter Description General settings Name A name for connection for easier identification.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description VLAN settings (The section is displayed, if the VLAN MUX Mode choice of the Ethernet WAN type radio button is selected on the Advanced / Interface grouping page.) Use VLAN VLAN priority VLAN ID The checkbox indicates that the router is allowed to apply VLAN tagging. A priority tag for the type of traffic transmitted. An identifier for the VLAN.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The PPP settings section is displayed for the PPPoE connection type. Figure 30. The page for creating a new connection. The PPP settings section.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description PPP settings PPP Username Without authorization Password A username (login) to access the Internet. Select the checkbox if you don't need to enter a username and password to access the Internet. A password to access the Internet. Password confirmation The confirmation of the entered password (to avoid mistypes).
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The IP settings section is displayed for the IPoE connection type. Figure 31. The page for creating a new connection. The IP settings section. Parameter Description IP settings Obtain an IP address automatically Select the checkbox to configure automatic IP address assignment for this connection.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Wi-Fi In this menu you can specify all needed settings for your wireless network. Common settings On the Wi-Fi / Common settings page, you can enable your wireless local area network (WLAN). Figure 32. The page for enabling/disabling the wireless LAN. The Enable Wireless checkbox enables Wi-Fi connections. By default, the checkbox is selected.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Basic Settings On the Wi-Fi / Basic settings page, you can configure basic parameters of the router's WLAN. Figure 33. Basic settings of the wireless LAN.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description Hide Access Point If the checkbox is selected, other users cannot see your Wi-Fi network. (It is recommended not to select this checkbox in order to simplify initial configuration of your WLAN.) SSID A name for the WLAN. By default, the value DSL_2750 is specified.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Security Settings On the Wi-Fi / Security settings page, you can modify security settings of the WLAN. Figure 34. The default security settings. By default, the Open network authentication type with no encryption is specified for the WLAN. ! The default security settings do not provide sufficient protection for the WLAN. Please, specify your own security settings.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual When the Open value is selected, the WEP Encryption settings section is displayed: Figure 35. The Open value is selected from the Network Authentication drop-down list. Parameter Enable Encryption WEP Encryption Key WEP as HEX Description The checkbox activating WEP encryption.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual When the WPA-PSK or WPA2-PSK value is selected, the WPA Encryption settings section is displayed: Figure 36. The WPA2-PSK value is selected from the Network Authentication drop-down list. Parameter Description Encryption Key PSK A key for WPA encryption. The key can contain digits and/or Latin characters.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual MAC Filter On the Wi-Fi / MAC-Filter page, you can define a set of MAC addresses of devices which will be allowed to access the WLAN, or define MAC addresses of devices which will not be allowed to access the WLAN. Figure 37. The MAC filter for the wireless network. By default, MAC filtering is not active (the Disabled choice of the MAC-filter restrict mode radio button is selected).
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 38. The tab for adding a MAC address. To remove a MAC address from the list of MAC addresses, select the checkbox located to the right of the relevant MAC address in the MAC-address list section and click the Delete button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Station List On the Wi-Fi / Station List page, you can view the list of wireless devices connected to the router. Figure 39. The list of the router's wireless clients. To view the latest data on the devices connected to the WLAN, click the Refresh button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual WPS On the Wi-Fi / WPS page, you can enable the function for secure configuration of the WLAN and select a method used to easily add wireless devices to the WLAN. The WPS function helps to configure the protected wireless network automatically. Devices connecting to the wireless network via the WPS function must support the WPS function.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual To activate the WPS function, select the WPS Enable checkbox and click the Change button. When the checkbox is selected, the Information and Connection sections are available on the page. Parameter WPS Status SSID Description The state of connecting the wireless device via the WPS function. The name of the router's WLAN.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual To add a wireless device via the PBC method of the WPS function, follow the next steps: 1. Select the WPS Enable checkbox. 2. Click the Change button. 3. Select the PBC value from the WPS Method drop-down list. 4. Select the PBC method in the software of the wireless device that you want to connect to the router's WLAN. 5.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Additional Settings On the Wi-Fi / Additional settings page, you can define additional parameters for the router's WLAN. ! Changing parameters presented on this page may negatively affect your WLAN! Figure 41. Additional settings of the WLAN.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The following fields are available on the page: Parameter Description Beacon Period The time interval (in milliseconds) between packets sent to synchronize the wireless network. RTS Threshold The minimum size (in bites) of a packet for which an RTS frame is transmitted. Frag Threshold The maximum size (in bites) of a non-fragmented packet. Larger packets are fragmented (divided).
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Advanced This menu provides advanced settings of the router. On the pages of this menu, you can define static routes and rules for remote access to the web-based interface, add name servers, enable the UPnP function, define interface groups and allow the router to connect to a private Ethernet line, configure a DDNS service, enable the SNMP agent, and edit the ADSL connection parameters.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual To allow the router to use the SNMP agent, select the Enable/Disable SNMP checkbox and set the needed values in the fields on the page. Parameter Description Read-only access community name The name of the group of accounts which have read-only access to the router. Read-write access community name The name of the group of accounts which have read/write access to the router.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual UPnP On the Advanced / UPnP page, you can enable the UPnP function. UPnP is a set of networking protocols designed for automatic configuration of network devices. The UPnP function performs automatic configuration of the device's parameters for network applications requiring an incoming connection to the router. Figure 43. The Advanced / UPnP page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Interface Grouping On the Advanced / Interface grouping page, you can assign virtual PVC connections to the router's ports (create groups of interfaces), which allows distinguishing different types of traffic. This function is mostly used in Triple-play networks. Also on the page you can configure the router to connect to a private Ethernet line.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 45. The page for adding a new group of ports. You can specify the following parameters: Parameter Description Name A name for the group for easier identification. You can specify any name. LANs The list of available internal interfaces is displayed in the left column of the line. Use the button ==> to select interfaces.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual DDNS On the Advanced / DDNS page, you can define parameters of the DDNS service, which allows associating a domain name with dynamic IP addresses. Figure 46. The Advanced / DDNS page. To add a new DDNS service, click the Add button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 47. The page for adding a DDNS service. You can specify the following parameters: Parameter DDNS Service Description Select a DDNS provider from the drop-down list. Host name The domain name registered at your DDNS provider. User name The username to authorize for your DDNS provider. User password The password to authorize for your DDNS provider.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual DNS On the Advanced / DNS page, you can add DNS servers to the system. Figure 48. The Advanced / DNS page. DNS servers are used to determine the IP address from the name of a server in Intranets or the Internet (as a rule, they are specified by an ISP or assigned by a network administrator). The device performs the DNS relay function, i.e.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Routing On the Advanced / Routing page, you can add static routes (routes for networks that are not connected directly to the device but are available through the interfaces of the device) into the system. Figure 49. The Advanced / Routing page. To create a new route, click the Add button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 50. The page for adding a static route. You can specify the following parameters: Parameter Description Destination network A destination network to which this route is assigned. Destination netmask The destination network mask. Gateway An IP address through which the destination network can be accessed. Metric A metric for the route.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual ADSL The Advanced / ADSL page includes the set of ADSL standards that should be defined by an ISP. Contact your ISP to set proper parameters. Select the relevant options and click the Change button. Figure 51. The Advanced / ADSL page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Remote Access On the Advanced / Remote access page, you can configure remote access to the web-based interface of the router. By default, the access from external networks to the router is closed. If you need to allow access to the router from the external network, create relevant rules. Figure 52. The Advanced / Remote access page. To create a new rule, click the Add button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 53. The page for adding a rule for remote management. You can specify the following parameters: Parameter Description Name A name for the rule for easier identification. You can specify any name. Interface A physical interface through which the web-based interface of the router is accessed. IP address Mask Protocol A host or a subnet to which the rule is applied.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Firewall In this menu you can configure the firewall of the router: add rules for IP filtering, define a DMZzone, create virtual servers, configure MAC-filters and the Port Triggering function. IP Filters On the Firewall / IP-filters page, you can create new rules for filtering IP packets and edit or remove existing rules. Figure 54. The Firewall / IP-filters page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 55. The page for adding a rule for IP filtering.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual You can specify the following parameters: Parameter Description IP-filter rule editing Name Protocol A name for the rule for easier identification. A protocol for network packet transmission. Select a value from the drop-down list. IP Addresses IP address range Select the checkbox if you want to specify a range of IP addresses as the source or destination IP address.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Virtual Servers On the Firewall / Virtual servers page, you can create virtual servers for redirecting incoming Internet traffic to a specified IP address in the local area network. Figure 56. The Firewall / Virtual servers page. To create a new virtual server, click the Add button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 57. The page for adding a virtual server.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual You can specify the following parameters: Parameter Description Template Select a virtual server template from the drop-down list, or select Custom to specify all parameters of the new virtual server manually. Name A name for the virtual server for easier identification. You can specify any name. Interface A WAN connection to which this virtual server will be assigned.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual DMZ A DMZ is a host or network segment located “between” internal (local) and external (global) networks. In the router, the DMZ implements the capability to transfer a request coming to a port of the DSL router from the external network to a specified host of the internal network. On the Firewall / DMZ page you can specify the IP address of the DMZ host. Figure 58. The Firewall / DMZ page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Application Rules On the Firewall / Application rules page, you can define rules for the Port Triggering function. Figure 59. The Firewall / Application rules page. To add a new rule for the Port Triggering function, click the Add button. Figure 60. The page for adding a rule for the Port Triggering function.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual You can specify the following parameters: Parameter Description Application rule editing Rules name Interface A name for the rule for easier identification. A WAN connection to which this rule will be assigned. Incoming port and protocol settings Protocol Starting port/ Ending port A protocol to which this rule will be applied upon receiving data to the specified port or port range.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual MAC Filter The MAC-address-based filtering allows forwarding and blocking traffic subject to the source and destination MAC addresses. ! MAC-address-based filtering is active only when the device is configured as a transparent bridge (the Bridge mode). On the Configuration tab, you can select the operating mode of the MAC filter.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 62. The Firewall / MAC-filter page. The MAC-addresses tab. On the opened page, specify the needed parameters. Figure 63. The page for adding a rule for MAC-address-based filtering.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Source MAC-address Description The MAC address of the source host. Destination MAC-address The MAC address of the destination host. Direction Select a direction for which the rule will be applied. Protocol Select a protocol for which the rule will be applied. The value means any protocol from those displayed in the list.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual USB Modem This menu is designed to operate USB modems. If the PIN code check for the SIM card inserted into your USB modem is not disabled, then upon the first access to the pages of the USB modem menu (under the current web-interface session) the page for checking the PIN code is displayed. Figure 64. The page for checking the PIN code.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Information On the USB modem / Information page, you can view data on the USB modem connected to the router. Figure 65. The USB modem / Information page. When a USB modem is connected to the router, the following data are displayed on the page: Parameter Description Vendor The manufacturer of your USB modem. Model The alphanumeric code of the model of your USB modem.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual PIN On the USB modem / PIN page, you can change the PIN code of the identification card inserted into your USB modem, disable or enable the check of the PIN code. Figure 66. The USB modem / PIN page. To disable the PIN code check, select the Disable PIN check checkbox, enter the current PIN code in the PIN code field and click the Change button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 67. The USB modem / PIN page. The PUK code check. If upon one of the operations described above you have entered an incorrect value in the PIN code field three times (the number of remaining attempts is displayed in the Attempts left field), the identification card inserted into your USB modem is blocked.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual USB Storage In this menu you can view data on the connected USB storage and configure shared access to it for your LAN users. Also you can configure the router as a print server. Information On the USB storage / Information page, you can view data on the USB storage connected to the router. Figure 68. The USB storage / Information page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Print Server On the USB storage / Print-server page, you can configure the router as a print server. Being configured in this way, the router will allow your LAN users to share the printer connected to the USB port of the router. To connect a printer to the router, power off both devices. Connect printer to the USB port of the router, power on the printer, then power on the router. Figure 69.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Samba On the USB storage / Samba page, you can create accounts used to access the USB storage connected to the router. Figure 70. The USB storage / Samba page. To create a new account, click the Add button. Figure 71. The page for adding an account used to access the USB storage. On the opened page, specify a username and password for the new account. Use Latin characters and/or digits.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual ! You cannot create accounts with the following usernames: admin, support, user, nobody. Then select the USB storage which will be accessed via this account from the USB storage dropdown list. Click the Save button. To edit an account, select the relevant account in the table. On the opened page, change the parameters and click the Save button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Control This menu is designed to create restrictions on access to the Internet for users of your LAN: forbid access for specified computers and limit access to certain web sites. Parent Control On the Control / Parent control page, you can create rules restricting access to the Internet for computers with specified MAC addresses during particular time periods on particular days. Figure 72.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 73. The page for adding a new parental control rule.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual You can specify the following parameters: Parameter Description Parent control editing On Select the checkbox to enable the rule. Name A name for the rule for easier identification. You can specify any name. MAC-address The MAC address of the computer to which this rule will be applied. Days of implementation Select checkboxes corresponding to the needed days of the week.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual URL Filter On the Control / URL-filter page, you can specify restrictions on access to certain web sites. Figure 74. The Control / URL-filter page. The Configuration tab.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 75. The Control / URL-filter page. The URL-addresses tab. On the opened page, specify the needed parameters. Figure 76. The page for adding an address for the URL filter. Enter a URL address in the URL-address field, specify a port (as usual, you need to specify port 80 for HTTP), then click the Save button.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual System In this menu you can save the changed settings to the non-volatile memory, create a backup of the router's configuration, restore the router's configuration from a previously saved file, restore the factory default settings, view the system log, configure automatic synchronization of the system time, update the firmware of the router, and change the password used to access its settings.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Configuration On the System / Configuration page, you can save the changed settings to the non-volatile memory, restore the factory defaults, backup the current configuration, or restore the router's configuration from a previously created file. Figure 78. The System / Configuration page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual System Log On the System / System log page, you can set the system log options and configure sending the system log to a remote host. Figure 79. The System / System log page. The Configuration tab. To enable logging of the system events, select the Logging checkbox on the Configuration tab. Then specify the needed parameters.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Control Description Remote logging level Select a type of messages and alerts/notifications to be sent to the remote host specified in the Server field. The field is available, when the Remote or Local and remote value is selected from the Logging type drop-down list.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Firmware Upgrade On the System / Firmware upgrade page, you can upgrade the firmware of the router. ! Upgrade the firmware only when the router is connected to your PC via a wired connection. Figure 81. The System / Firmware upgrade page. The current version of the router's firmware is displayed in the Firmware version field on the Start page.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual 7. Wait until the router is rebooted. Log into the web-based interface, using the default IP address, login and password (192.168.1.1, admin, admin). NTP Client On the System / NTP client page, you can configure automatic synchronization of the system time with a time server on the Internet. Figure 82. The System / NTP client page. To enable automatic synchronization with a time server: 1.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Operation Guidelines User Manual CHAPTER 5. OPERATION GUIDELINES Supported USB Modems • Huawei E150 • Huawei E1550 • Huawei E220 • ZTE MF626 • ZTE MF627. Safety Instructions Place your router on a flat horizontal surface or mount the router on the wall (the mounting holes are located on the bottom panel of the device). Make sure that the router is provided with sufficient ventilation.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Operation Guidelines User Manual Wireless Installation Considerations The DSL-2750U device lets you access your network using a wireless connection from virtually anywhere within the operating range of your wireless network. Keep in mind, however, that the number, thickness and location of walls, ceilings, or other objects that the wireless signals must pass through, may limit the range.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Operation Guidelines User Manual Creating Two Connections on One Channel ADSL WAN Connections In some cases, it is necessary to assign two WAN connections (of the Bridge/IPoE/IPoA type) to one virtual channel (that is, to specify the same values of the VPI/VCI). For example, your ISP provides the IPTV service (VPI = 8, VCI = 35).
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Operation Guidelines User Manual 12. Go to the Advanced / Interface grouping page. 13. Create a group containing the WAN connection of the Bridge type and the LAN 2 port. 14. Create another group containing the WAN connection of the IPoE type, the LAN 3 port, and the wireless interface. Figure 84. Groups of ports for the created WAN connections. 15. Save the router's settings.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Operation Guidelines User Manual Figure 85. Two WAN connections for one physical interface. 14. Go to the Advanced / Interface grouping page. 15. Create a group containing the WAN connection of the Bridge type and the LAN 2 port. 16. Create another group containing the WAN connection of the IPoE type, the LAN 4 port, and the wireless interface. Figure 86. Groups of ports for the created WAN connections. Save the router's settings.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Abbreviations and Acronyms User Manual CHAPTER 6.
DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Abbreviations and Acronyms User Manual NTP Network Time Protocol PBC Push Button Configuration PIN Personal Identification Number PPPoA Point-to-Point Protocol over ATM PPPoE Point-to-point protocol over Ethernet PSK Pre-shared key PUK PIN Unlock Key QoS Quality of Service RTS Request To Send SIM Subscriber Identification Module SNMP Simple Network Management Protocol SSID Service Set Identifier TKIP Temporal Key In
