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D-Link DSL-2750U User Manual
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D-Link DSL-2750U User Manual

Wireless n adsl2+ usb modem router
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User Manual
DSL-2750U
Wireless N ADSL2+ USB Modem Router
November 2013

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Summary of Contents for D-Link DSL-2750U

  • Page 1 User Manual DSL-2750U Wireless N ADSL2+ USB Modem Router November 2013...

  • Page 2: Table Of Contents

    DSL-2750U Wireless N ADSL2+ USB Modem Router User Manual Contents Chapter 1. Introduction..........4 Contents and Audience............4 Conventions..............4 Document Structure............4 Chapter 2. Overview..........5 General Information............5 Specifications..............6 Product Appearance............11 Front Panel..............11 Side Panel...............13 Back Panel...............14 Delivery Package............15 Chapter 3. Installation and Connection......16 Before You Begin............16...
  • Page 3 DSL-2750U Wireless N ADSL2+ USB Modem Router User Manual Wi-Fi..............104 Basic Settings............104 Security Settings............106 MAC Filter..............109 Station List............111 WPS..............112 Using WPS Function via Web-based Interface......114 Using WPS Function without Web-based Interface......114 Additional Settings.............116 Advanced..............118 SNMP..............119 UPnP..............120 Interface Grouping............121 DDNS..............125 DNS..............126 Routing..............127...

  • Page 4: Chapter 1. Introduction

    Chapter 2 gives an overview of the router's hardware and software features and describes its appearance and the package contents. Chapter 3 explains how to install the router DSL-2750U and configure a PC in order to access its web-based interface.

  • Page 5: Chapter 2. Overview

    You can configure and manage the settings of DSL-2750U via the user-friendly web-based interface (the interface is available in several languages). 1 Not included in the delivery package. D-Link does not guarantee compatibility with all USB modems. Please, refer to the Supported USB Modems section, page 167.

  • Page 6: Specifications

    DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Specifications Hardware 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, and n wireless interface • USB: USB 2.0 type A port •...
  • Page 7 DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual ADSL Standards ADSL • ◦ Multi-mode, ANSI T1.413 Issue 2, ITU-T G.992.1 (G.dmt) Annex A, ITU-T G.992.2 (G.lite) Annex A, ITU-T G.994.1 (G.hs) ADSL2 • ◦ ITU-T G.992.3 (G.dmt.bis) Annex A/L/M, ITU-T G.992.4 (G.lite.bis) Annex A ADSL2+ •...
  • Page 8 DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual 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 •...
  • Page 9 DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual USB Modem Auto connection to available type of supported network (3G/2G) • Enabling/disabling PIN code check, changing PIN code • USB Storage SMB-based access via accounts • File browser •...
  • Page 10 DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Storage Temperature From -20 to 70 °C (from -4 to 158 °F) • Humidity From 5% to 95% non-condensing • Page 10 of 174...

  • Page 11: Product Appearance

    DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Product Appearance Front Panel Figure 1. Front panel view. Mode Description The router is powered on. Solid green POWER The router is powered off. No light The router is in the crash recovery mode.
  • Page 12 DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Mode Description The router's WLAN is on. Solid green WLAN The WLAN interface is active (upstream or downstream traffic). Blinking green A device is connected to the port of the router (for the LAN port...

  • Page 13: Side Panel

    DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Side Panel Figure 2. Side panel view. Name Description A button to enable/disable the router's wireless network and to quickly add wireless devices to the router's WLAN (the WPS function).

  • Page 14: Back Panel

    DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Back Panel Figure 3. Back panel view. Port 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 LAN 1-4 private Ethernet line.

  • Page 15: Delivery Package

    DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Delivery Package The following should be included: Router DSL-2750U • Power adapter DC 12V/1A • RJ-11 telephone cable • Ethernet cable (CAT 5E) • Splitter • “Quick Installation Guide” (brochure).

  • Page 16: Chapter 3. Installation And Connection

    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. The web-based interface is available from any operating system that supports a web browser.

  • Page 17: Connecting To Pc

    DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual Connecting to PC 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.

  • Page 18: Obtaining Ip Address Automatically In Os Windows Xp

    DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual Obtaining IP Address Automatically in OS Windows XP 1. Click the Start button and proceed to the Control Panel > Network and Internet Connections > Network Connections window.
  • Page 19 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual 3. In the Local Area Connection Properties window, on the General tab, select the Internet Protocol (TCP/IP) line. Click the Properties button. Figure 5. The Local Area Connection Properties window.
  • Page 20 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual 4. Select the Obtain an IP address automatically and Obtain DNS server address automatically radio buttons. Click the OK button. Figure 6. The Internet Protocol (TCP/IP) Properties window.

  • Page 21: Obtaining Ip Address Automatically In Os Windows 7

    DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual Obtaining IP Address Automatically in OS Windows 7 1. Click the Start button and proceed to the Control Panel window. 2. Select the Network and Sharing Center section. (If the Control Panel has the category...
  • Page 22 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual 3. In the menu located on the left part of the window, select the Change adapter settings line. Figure 8. The Network and Sharing Center window. Page 22 of 174...
  • Page 23 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual 4. In the opened window, right-click the relevant Local Area Connection icon and select the Properties line in the menu displayed. Figure 9. The Network Connections window. Page 23 of 174...
  • Page 24 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual 5. In the Local Area Connection Properties window, on the Networking tab, select the Internet Protocol Version 4 (TCP/IPv4) line. Click the Properties button. Figure 10. The Local Area Connection Properties window.
  • Page 25 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual 6. Select the Obtain an IP address automatically and Obtain DNS server address automatically radio buttons. Click the OK button. Figure 11. The Internet Protocol Version 4 (TCP/IPv4) Properties window.

  • Page 26: Pc With Wi-Fi Adapter

    DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual PC with Wi-Fi Adapter 1. To connect via 3G network: connect your USB modem to the USB port located on the left side panel of the router. If you need to connect or change a USB modem to another one when the router is powered on, power off the device, connect the modem to the USB port, and power on the router.

  • Page 27: Configuring Wi-Fi Adapter In Os Windows Xp

    DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual Configuring Wi-Fi Adapter in OS Windows XP 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 network connection and make sure that your Wi-Fi adapter is Figure 12.

  • Page 28: Configuring Wi-Fi Adapter In Os Windows 7

    DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual Configuring Wi-Fi Adapter in OS Windows 7 1. Click the Start button and proceed to the Control Panel window. 2. Select the Network and Sharing Center section. (If the Control Panel has the category...
  • Page 29 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual 6. In the opened window, in the list of available wireless networks, select the wireless network DSL-2750U and click the Connect button. Figure 15. The list of available networks.

  • Page 30: Connecting To Web-Based Interface

    2. In the address bar of the web browser, enter the IP address of the router (by default, the following IP address is specified: 192.168.1.1). Press the Enter key. Figure 16. Connecting to the web-based interface of the DSL-2750U device. 3. On the opened page, enter the username and password for the administrator account in the Login and Password fields correspondingly (by default, the following username and password are specified: admin, admin).

  • Page 31: Web-Based Interface Structure

    DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual Web-based Interface Structure After successful registration the router's quick settings page opens. Figure 18. The quick settings 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.
  • Page 32 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual After selecting the language, the notification on unsaved changes will be displayed. Click the Save icon ( ) to save the current language of the web-based interface as the default language.
  • Page 33 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual Figure 20. The advanced settings page. The pages of the Status section display data on the current state of the router (for the description of the pages, see the Status section, page 76).

  • Page 34: Saving And Restoring Settings

    DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual The pages of the System section provide functions for managing the internal system of the router (for the description of the pages, see the System section, page 158).
  • Page 35 DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual You can save the router's settings via the top-page menu displayed when the mouse pointer is over the System caption. Figure 23. The top-page menu. Click the Reboot line if you have already saved the router's settings.

  • Page 36: Chapter 4. Configuring Via Web-Based Interface

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual CHAPTER 4. CONFIGURING WEB-BASED INTERFACE Click'n'Connect To configure a WAN connection, click the Click'n'Connect link in the Net section. Figure 24. Configuring a WAN connection. Connect a phone cable, Ethernet cable, or USB modem to the router (see the Connecting to PC section, page 17).
  • Page 37 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 25. The page for selecting a 3G network operator. On the opened page, from the Provider drop-down list, select your country and operator if you are...
  • Page 38 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 26. The page for selecting the connection type. On the opened page, select the needed choice of the radio button and click the Next button. Figure 27. The page for selecting a port or interface.

  • Page 39: Creating Wan Connection

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Creating WAN Connection PPPoE or PPPoA Connection Figure 28. Configuring PPPoE WAN connection. In the Connection name field, specify a name for the connection for easier identification.
  • Page 40 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 29. Configuring PPPoE WAN connection. The expert settings mode. The ATM section. Parameter Description Connection name A name for connection for easier identification. Virtual Path Identifier.
  • Page 41 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description the Peak Cell Rate field is displayed. Specify a required value (in cells per second). (Constant Bit Rate): This service is used for applications that require a constant data rate.
  • Page 42 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 30. Configuring PPPoE WAN connection. The expert settings mode. The Ethernet section. Parameter Description Ethernet The maximum size of units transmitted by the interface. A MAC address assigned to the interface. This parameter is mandatory if your ISP uses MAC address binding.
  • Page 43 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 31. Configuring PPPoE WAN connection. The expert settings mode. The PPP section. Parameter Description Username A username (login) to access the Internet. Select the checkbox if you don't need to enter a username and Without authorization password to access the Internet.
  • Page 44 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Select the checkbox if you want the router to establish connection to the Internet on demand. In the Maximum idle time field, specify a Dial on demand period of inactivity (in seconds) after which the connection should be terminated.
  • Page 45 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 32. Configuring PPPoE WAN connection. The expert settings mode. The Miscellaneous and VLAN sections. Parameter Description Miscellaneous Enable RIP Select the checkbox to allow using RIP for this connection.
  • Page 46 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description A priority tag for the type of traffic transmitted. The field is VLAN priority displayed when the Use VLAN checkbox is selected. Click the Next button to continue.

  • Page 47: Ipoa Or Static Ip Connection

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual IPoA or Static IP Connection Figure 33. Configuring Static IP WAN connection. In the Connection name field, specify a name for the connection for easier identification. For ADSL WAN connection, fill in the VPI and VCI fields.
  • Page 48 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 34. Configuring Static IP WAN connection. The expert settings mode. The ATM and IP sections. Parameter Description Connection name A name for connection for easier identification.
  • Page 49 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description the Peak Cell Rate field is displayed. Specify a required value (in cells per second). (Constant Bit Rate): This service is used for applications that require a constant data rate.
  • Page 50 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 35. Configuring Static IP WAN connection. The expert settings mode. The Ethernet section. Parameter Description Ethernet The maximum size of units transmitted by the interface. A MAC address assigned to the interface. This parameter is mandatory if your ISP uses MAC address binding.
  • Page 51 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 36. Configuring Static IP WAN connection. The expert settings mode. The Miscellaneous and VLAN sections. Parameter Description Miscellaneous Enable RIP Select the checkbox to allow using RIP for this connection.
  • Page 52 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description A priority tag for the type of traffic transmitted. The field is VLAN priority displayed when the Use VLAN checkbox is selected. Click the Next button to continue.

  • Page 53: Dynamic Ip Connection

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Dynamic IP Connection Figure 37. Configuring Dynamic IP WAN connection. In the Connection name field, specify a name for the connection for easier identification. For ADSL WAN connection, fill in the VPI and VCI fields.
  • Page 54 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 38. Configuring Dynamic IP WAN connection. The expert settings mode. The ATM and IP sections. Parameter Description Connection name A name for connection for easier identification.
  • Page 55 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description the Peak Cell Rate field is displayed. Specify a required value (in cells per second). (Constant Bit Rate): This service is used for applications that require a constant data rate.
  • Page 56 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 39. Configuring Dynamic IP WAN connection. The expert settings mode. The Ethernet section. Parameter Description Ethernet The maximum size of units transmitted by the interface. A MAC address assigned to the interface. This parameter is mandatory if your ISP uses MAC address binding.
  • Page 57 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 40. Configuring Dynamic IP WAN connection. The expert settings mode. The Miscellaneous and VLAN sections. Parameter Description Miscellaneous Enable RIP Select the checkbox to allow using RIP for this connection.
  • Page 58 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description A priority tag for the type of traffic transmitted. The field is VLAN priority displayed when the Use VLAN checkbox is selected. Click the Next button to continue.

  • Page 59: Bridge Connection

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Bridge Connection Figure 41. Configuring Bridge WAN connection. In the Connection name field, specify a name for the connection for easier identification. For ADSL WAN connection, fill in the VPI and VCI fields.
  • Page 60 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 42. Configuring Bridge WAN connection. The expert settings mode. The ATM and VLAN sections. Parameter Description Connection name A name for connection for easier identification. Virtual Path Identifier.
  • Page 61 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description the Peak Cell Rate field is displayed. Specify a required value (in cells per second). (Constant Bit Rate): This service is used for applications that require a constant data rate.
  • Page 62 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 43. Configuring Bridge WAN connection. The expert settings mode. The Ethernet section. Parameter Description Ethernet The maximum size of units transmitted by the interface. A MAC address assigned to the interface. This parameter is mandatory if your ISP uses MAC address binding.

  • Page 63: 3G Connection

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual 3G Connection Figure 44. Configuring 3G WAN connection. In the Connection name field, specify a name for the connection for easier identification. In the Username field, enter your login, and in the Password and Password confirmation fields –...
  • Page 64 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 45. Configuring 3G WAN connection. The expert settings mode. The PPP section. Parameter Description Connection name A name for connection for easier identification. The value of the field specifies the type of the network to which the router connects.
  • Page 65 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Select the checkbox if you want the router to keep you connected to the network of your operator even when the connection has been Keep Alive inactive for a specified period of time.
  • Page 66 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual After that the page displaying all specified settings opens. Click the Apply button to create the connection or the Back button to specify other settings. After clicking the Apply button, the page for checking the Internet availability opens (see the Checking Internet Availability section, page 67).

  • Page 67: Checking Internet Availability

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Checking Internet Availability On the page, you can check the WAN connection you have created. Figure 47. Checking the Internet availability. In the Result section, the status of the WAN connection and possible causes of malfunctions are displayed.

  • Page 68: Configuring Wireless Connection

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Configuring Wireless Connection Figure 48. The page for selecting the operating mode for the wireless network. If you are not going to use the wireless connection, select the Turn off choice of the Mode radio button.
  • Page 69 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual On the opened page, in the SSID field, specify a new name for the network (use digits and Latin characters). Figure 49. Page for changing the name of the wireless LAN.
  • Page 70 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual On the next page, you can modify security settings of the WLAN. The default security settings do not provide sufficient protection for the WLAN. Please, specify your own security settings for the WLAN.

  • Page 71: Wireless Network Settings Wizard

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Wireless Network Settings Wizard To specify all needed settings for your wireless network, click the Wireless network settings wizard in the Wi-Fi section. Figure 51. The page for selecting the operating mode for the wireless network.
  • Page 72 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual On the opened page, in the SSID field, specify a new name for the network (use digits and Latin characters). Figure 52. Page for changing the name of the wireless LAN.
  • Page 73 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual On the next page, you can modify security settings of the WLAN. The default security settings do not provide sufficient protection for the WLAN. Please, specify your own security settings for the WLAN.

  • Page 74: Virtual Server Settings Wizard

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Virtual Server Settings Wizard To create a virtual server for redirecting incoming Internet traffic to a specified IP address in the LAN, click the Virtual server settings wizard link in the Firewall section.
  • Page 75 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Enter the IP address of the server from the local area network. To Private port (begin)/ choose a device connected to the router's LAN at the moment, select...

  • Page 76: Status

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Status The pages of this section display data on the current state of the router: network statistics • DSL connection status • active WAN connections • IP addresses leased by the DHCP server •...

  • Page 77: Dsl Status

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 56. The Status / DSL status page.

  • Page 78: Wan Status

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual WAN Status The Status / WAN status page displays active WAN connections. Figure 57. The Status / WAN status page. Page 78 of 174...

  • Page 79: Dhcp

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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).

  • Page 80: Routing Table

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 59. The Status / Routing table page.

  • Page 81: Clients

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Clients On the Status / Clients page, you can view the list of devices connected to the router and devices accessing its web-based interface. Figure 60. The Status / Clients page.

  • Page 82: Net

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual In this menu you can configure basic parameters of the router's local area network and configure connection to the Internet (a WAN connection). On the Net / WAN page, you can create and edit connections used by the router.

  • Page 83: Creating Adsl Wan Connection

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Creating ADSL WAN Connection Figure 62. The page for creating a new connection. The General settings and ATM sections. Parameter Description General settings Provider Leave the Manually value.
  • Page 84 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Enable Select the checkbox to enable the connection. Direction The direction of this connection. Virtual Path Identifier. The valid range is from 0 to 250.
  • Page 85 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description displayed. Specify required values. Realtime VBR (Real-time Variable Bit Rate): This service is used for delay- sensitive applications such as real time video. The Rt-VBR provides higher network flexibility than the CBR service.
  • Page 86 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description An identifier for the VLAN. The field is displayed when the Use VLAN ID VLAN checkbox is selected. A priority tag for the type of traffic transmitted. The field is VLAN priority displayed when the Use VLAN checkbox is selected.
  • Page 87 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual The PPP section is displayed for the PPPoE and PPPoA connection types. Figure 65. The page for creating a new connection. The PPP section. Parameter Description Username A username (login) to access the Internet.
  • Page 88 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Select the checkbox if you want the router to establish connection to the Internet on demand. In the Maximum idle time field, specify a Dial on demand period of inactivity (in seconds) after which the connection should be terminated.
  • Page 89 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Displayed for the Static IP and IPoA types only. IP Address Enter an IP address for this WAN connection. Displayed for the Static IP and IPoA types only.

  • Page 90: Creating Ethernet Wan Connection

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 121).
  • Page 91 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Direction The direction of this connection. Ethernet The maximum size of units transmitted by the interface. A MAC address assigned to the interface. This parameter is mandatory if your ISP uses MAC address binding.
  • Page 92 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual The Miscellaneous section is displayed for all connection types except for Bridge. Figure 68. The page for creating a new connection. The Miscellaneous section. Parameter Description Miscellaneous Enable RIP Select the checkbox to allow using RIP for this connection.
  • Page 93 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual The PPP section is displayed for the PPPoE connection type. Figure 69. The page for creating a new connection. The PPP section. Parameter Description Username A username (login) to access the Internet.
  • Page 94 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Select the checkbox if you want the router to establish connection to the Internet on demand. In the Maximum idle time field, specify a Dial on demand period of inactivity (in seconds) after which the connection should be terminated.
  • Page 95 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Displayed for the Static IP type only. IP Address Enter an IP address for this WAN connection. Displayed for the Static IP type only. Netmask Enter a subnet mask for this WAN connection.

  • Page 96: Creating 3G Wan Connection

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 145).
  • Page 97 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description The value of the field specifies the type of the network to which the router connects. Leave the auto value to let the router connect...
  • Page 98 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Select the checkbox if you want the router to keep you connected to the network of your operator even when the connection has been Keep Alive inactive for a specified period of time.

  • Page 99: Lan

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To configure the router's local interface, proceed to the Net / LAN page. Figure 73. Basic settings of the local interface. If needed, edit the basic parameters of the local interface.
  • Page 100 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual In the DHCP server section, you can configure the built-in DHCP server of the router. The built-in DHCP server automatically assigns IP addresses to computers of the main local subnet (you need to specify IP addresses manually for computers of the additional local subnet).
  • Page 101 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual When all needed settings are configured, click the Save button. In the Static DHCP section, you can specify MAC address and IP address pairs (set a fixed IP address in the local area network for a device with a certain MAC address).

  • Page 102: Watchdog

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Watchdog On the Net / Watchdog page, you can enable the WAN backup function, which provides you with uninterrupted access to the Internet. When your main connection breaks down, the router activates the backup connection;...
  • Page 103 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description The minimum quality of the main connection when the router considers the connection as active. Possible values are from 0 to Connection quality level 255. By default, the value 32 is specified.

  • Page 104: Wi-Fi

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Wi-Fi In this menu you can specify all needed settings for your wireless network. Basic Settings On the Wi-Fi / Basic settings page, you can enable your wireless local area network (WLAN) and configure its basic parameters.
  • Page 105 (It is recommended not to select this checkbox in order to simplify initial configuration of your WLAN.) A name for the WLAN. By default, the value DSL-2750U is SSID specified. It is recommended to specify another name for the network upon initial configuration (use digits and Latin characters).

  • Page 106: Security Settings

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 79. The default security settings. By default, the Open network authentication type with no encryption is specified for the WLAN.
  • Page 107 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual When the Open value is selected, the WEP Encryption settings section is displayed: Figure 80. The Open value is selected from the Network Authentication drop-down list. Parameter Description The checkbox activating WEP encryption.
  • Page 108 DSL-2750U Wireless N ADSL2+ USB Modem Router 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 81. The WPA2-PSK value is selected from the Network Authentication drop-down list.

  • Page 109: Mac Filter

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.
  • Page 110 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 83. The tab for adding a MAC address. Click the Add button and enter an address in the field displayed. Also you can enter the MAC address of a device connected to the router's LAN at the moment.

  • Page 111: Station List

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Station List On the Wi-Fi / Station List page, you can view the list of wireless clients connected to the router. Figure 84. The list of the router's wireless clients.

  • Page 112: Wps

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual 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.
  • Page 113 DSL-2750U Wireless N ADSL2+ USB Modem Router 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.

  • Page 114: Using Wps Function Via Web-Based Interface

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Using WPS Function via Web-based Interface To add a wireless device via the PIN method of the WPS function, follow the next steps: 1. Select the WPS Enable checkbox.
  • Page 115 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Later you will be able to add wireless devices to the WLAN by pressing the WPS/WLAN button of the router. 1. Select the PBC method in the software of the wireless device that you want to connect to the router's WLAN.

  • Page 116: Additional Settings

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 86.
  • Page 117 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual The following fields are available on the page: Parameter Description The time interval (in milliseconds) between packets sent to synchronize Beacon Period the wireless network. The minimum size (in bites) of a packet for which an RTS frame is RTS Threshold transmitted.

  • Page 118: Advanced

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Advanced In this menu you can configure advanced settings of the router: enable and configure the SNMP agent • enable the UPnP function • define interface groups and allow the router to connect to a private Ethernet line •...

  • Page 119: Snmp

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual SNMP On the Advanced / SNMP page, you can enable and configure the SNMP agent. The agent is used to collect data on the state of the router and manage the device via the SNMP protocol.

  • Page 120: Upnp

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual UPnP On the Advanced / UPnP page, you can enable and disable 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.

  • Page 121: Interface Grouping

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.
  • Page 122 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To change the operating parameters of a LAN port of the router, place the mouse pointer on the relevant LAN port and click the Setup speed and stream line in the menu displayed (the line is not available if the LAN port is used as the WAN port).
  • Page 123 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To enable the Ethernet WAN function, follow the steps below. 1. Place the mouse pointer on the router's LAN port that will be used as the WAN port and click the Make WAN line in the menu displayed.
  • Page 124 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual You can specify the following parameters: Parameter Description A name for the group for easier identification. You can specify any Name name. The list of available internal interfaces is displayed in the left drop- down list.

  • Page 125: Ddns

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 92. The Advanced / DDNS page.

  • Page 126: Dns

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual On the Advanced / DNS page, you can add DNS servers to the system. Figure 93. 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).

  • Page 127: Routing

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.
  • Page 128 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To edit an existing route, select a needed field in the relevant line of the table, change its value, and click the Save button. To remove an existing route, select the checkbox located to the left of the relevant line in the table and click the Save button.

  • Page 129: Adsl

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.

  • Page 130: Remote Access

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.
  • Page 131 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To edit a rule for remote access, select a needed field in the relevant line of the table, change its value, and click the Save button. To remove a rule for remote access, select the checkbox located to the left of the relevant line in the table and click the Save button.

  • Page 132: Tr-069 Client

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual TR-069 Client On the Advanced / TR-069 Client page, you can configure the router for communication with a remote Auto Configuration Server (ACS). The TR-069 client is used for remote monitoring and management of the device.

  • Page 133: Connection Settings

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual The username to connect to the ACS. The username can contain User name digits, Latin letters (uppercase and/or lowercase), and characters available on the keyboard. The password to connect to the ACS. The password can contain...

  • Page 134: Firewall

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Firewall In this menu you can configure the firewall of the router: add rules for IP filtering • create virtual servers • define a DMZ • configure the Port Triggering function •...
  • Page 135 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 99. The page for adding a rule for IP filtering. You can specify the following parameters: Parameter Description General Name A name for the rule for easier identification.

  • Page 136: Destination Ip Address

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description The source host/subnet IP address. To choose a device connected to the router's LAN at the moment, select the relevant IP address from the drop-down list (the field will be filled in automatically).

  • Page 137: Virtual Servers

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.
  • Page 138 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 101. The page for adding a virtual server. You can specify the following parameters: Parameter Description Select a virtual server template from the drop-down list, or select...
  • Page 139 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description The IP address of the server from the local area network. To choose a device connected to the router's LAN at the moment, select the...

  • Page 140: Dmz

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual 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.

  • Page 141: Application Rules

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 103. The Firewall / Application rules page. To add a new rule for the Port Triggering function, click the Add button. In the line displayed, you...
  • Page 142 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description A protocol to which this rule will be applied upon transferring data Outgoing from the specified port range. After specifying the needed parameters, click the Save button.

  • Page 143: Mac Filter

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual MAC Filter The MAC-address-based filtering allows 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).
  • Page 144 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual After specifying the needed parameters, click the Save button. To edit a rule for filtering, select a needed field in the relevant line of the table, change its value, and click the Save button.

  • Page 145: Usb Modem

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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...

  • Page 146: Pin

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description IMEI The code stored in the memory of the USB modem. The signal level at the input of the modem's receiver. The zero signal Signal level level shows that you are out of the coverage area of the selected operator's network.
  • Page 147 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To change the PIN code, enable the PIN code check, enter the current code in the PIN code field, then enter a new code in New PIN code and New PIN code confirmation fields and click the Enter button.

  • Page 148: Usb Storage

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual USB Storage This menu is designed to operate USB storages. Here you can do the following: view data on the connected USB storage • view content of the connected USB storage •...

  • Page 149: Filebrowser

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Filebrowser On the USB storage / Filebrowser page, you can view the content of your USB storage connected to the router and remove separate folders and files from the USB storage.

  • Page 150: Print Server

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.

  • Page 151: Samba

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 111. The USB storage / Samba page.
  • Page 152 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 112. 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.

  • Page 153: Control

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.
  • Page 154 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 114. The page for adding a new parental control rule. You can specify the following parameters: Parameter Description Parent control editing Select the checkbox to enable the rule.
  • Page 155 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Click the Change button. To edit an existing rule, select the relevant rule in the table. On the opened page, change the needed parameters and click the Change button.

  • Page 156: Url Filter

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 115. The Control / URL filter page. The Configuration tab.
  • Page 157 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 116. The Control / URL filter page. The URL addresses tab. Click the Add button and 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.

  • Page 158: System

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual System In this menu you can do the following: change the password used to access the router's settings • save the current settings to the non-volatile memory •...

  • Page 159: Administrator Password

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Administrator Password On the System / Administrator password page, you can change the password for the administrator account used to access the web-based interface of the router and to access the device via TELNET.

  • Page 160: Configuration

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.

  • Page 161: System Log

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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 119. The System / System log page. The Configuration tab.
  • Page 162 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Control Description Select a type of messages and alerts/notifications to be sent to the remote host specified in the Server field. The field is available, Remote logging level when the Remote or Local and remote value is selected from the Logging type drop-down list.

  • Page 163: Firmware Upgrade

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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.
  • Page 164 DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual 6. Select the Factory line in the top-page menu displayed when the mouse pointer is over the System caption. 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).

  • Page 165: Ntp Client

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual NTP Client On the System / NTP client page, you can manually set the time and date of the router or configure automatic synchronization of the system time with a time server on the Internet.

  • Page 166: Ping

    DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Ping On the System / Ping page, you can check availability of a host from the local or global network via the Ping utility. The Ping utility sends echo requests to a specified host and receives echo replies.

  • Page 167: Chapter 5. Operation Guidelines

    DSL-2750U Wireless N ADSL2+ USB Modem Router Operation Guidelines User Manual CHAPTER 5. OPERATION GUIDELINES Supported USB Modems GSM modems: Huawei E171 • ZTE MF192 • ZTE MF626 • ZTE MF652 • CDMA modems Airplus MCD-650 • Airplus MCD-800 •...

  • Page 168: Safety Instructions

    DSL-2750U Wireless N ADSL2+ USB Modem Router Operation Guidelines User Manual Safety Instructions Place your router on a flat horizontal surface or mount the router on the wall (the mounting holes are located on the back panel of the device). Make sure that the router is provided with sufficient ventilation.

  • Page 169: Wireless Installation Considerations

    RF noise in your home or office. To maximize your wireless range, follow the guidelines below. 1. Keep the number of walls and ceilings between the DSL-2750U device and other network devices to a minimum – each wall or ceiling can reduce your wireless network range by 3- 90 feet (1-30 meters).

  • Page 170: Creating Two Connections On One Channel

    DSL-2750U Wireless N ADSL2+ USB Modem Router 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/Static IP/Dynamic IP type) to one virtual channel (that is, to specify the same values of the VPI/VCI).

  • Page 171: Ethernet Wan Connections

    DSL-2750U Wireless N ADSL2+ USB Modem Router Operation Guidelines User Manual 11. Go to the Advanced / Interface grouping page. 12. Create a group containing the WAN connection of the Bridge type and the LAN 2 port. 13. Create another group containing the WAN connection of the Dynamic IP type, the LAN 3 port, and the wireless interface.
  • Page 172 DSL-2750U Wireless N ADSL2+ USB Modem Router Operation Guidelines User Manual 13. In the VLAN section, select the Allow to create several connections assigned to this port checkbox. 14. Click the Save button. Figure 126. Two WAN connections for one physical interface.

  • Page 173: Chapter 6. Abbreviations And Acronyms

    DSL-2750U Wireless N ADSL2+ USB Modem Router Abbreviations and Acronyms User Manual CHAPTER 6. ABBREVIATIONS AND ACRONYMS Third Generation Advanced Encryption Standard Address Resolution Protocol BSSID Basic Service Set Identifier CDMA Code Division Multiple Access Cyclic Redundancy Check DDNS Dynamic Domain Name System...
  • Page 174 DSL-2750U Wireless N ADSL2+ USB Modem Router Abbreviations and Acronyms User Manual Personal Identification Number PPPoA Point-to-Point Protocol over ATM PPPoE Point-to-point protocol over Ethernet Pre-shared key PIN Unlock Key Quality of Service R-UIM Removable User Identity Module Routing Information Protocol...

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