DSL-2750U Wireless N ADSL2+ USB Modem Router User Manual Contents Chapter 1. Introduction..........5 Contents and Audience............5 Conventions..............5 Document Structure............5 Chapter 2. Overview..........6 General Information............6 Specifications..............7 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...
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DSL-2750U Wireless N ADSL2+ USB Modem Router User Manual Wi-Fi..............106 Basic Settings............106 Security Settings............108 MAC Filter..............112 Station List............114 WPS..............115 Using WPS Function via Web-based Interface......117 Using WPS Function without Web-based Interface......117 Additional Settings.............119 Advanced..............121 UPnP..............122 Interface Grouping............124 EtherWAN..............127 DDNS..............128 DNS..............129 Routing..............130...
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DSL-2750U Wireless N ADSL2+ USB Modem Router User Manual Chapter 5. Operation Guidelines........176 Supported USB Modems............176 Safety Instructions............178 Wireless Installation Considerations........179 Chapter 6. Abbreviations and Acronyms......180 Page 4 of 182...
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 wireless router DSL-2750U and configure a PC in order to access its web-based interface.
Now you can simply update the firmware: the router itself finds approved firmware on D-Link update server and notifies when ready to install it. 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 176.
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 2.0 type A port •...
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DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Software WAN Connection Types • • ADSL • ◦ PPPoE ◦ PPPoA ◦ IPoA ◦ Static IP ◦ Dynamic IP ◦ Bridge Ethernet • ◦ PPPoE ◦ Static IP ◦ Dynamic IP ◦...
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DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Network Protocols and Functions DHCP server/client/relay • DNS relay • DDNS • Static IP routing • Remote management • Network statistics for each interface • IGMP proxy • IGMP snooping •...
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DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Configuration and Management Multilingual web-based interface for configuration and management • Access via TELNET • Firmware update via web-based interface • Automatic notification on new firmware version • Saving/restoring configuration to/from file •...
DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Product Appearance Front Panel Figure 1. Front panel view. Mode Description Solid green The router is powered on. POWER No light The router is powered off. Solid green DSL has been synchronized.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Mode Description A device is connected to the port of the router (for the LAN port Solid green configured as the WAN port: the router is connected to an Ethernet line).
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).
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.
DSL-2750U Wireless N ADSL2+ USB Modem Router Overview User Manual Delivery Package The following should be included: Wireless router DSL-2750U • Power adapter DC 12V/1A • RJ-11 telephone cable • Ethernet cable (CAT 5E) • Splitter • “Quick Installation Guide” (brochure).
Operating System Configuration of the multifunction wireless LTE/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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual USB Modem To connect to a LTE, 3G GSM or CDMA network, you should use a USB modem. Connect it to the USB port of the router, then access the web-based interface of the router, and you will be able to...
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.
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.
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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.
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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.
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...
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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 23 of 182...
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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 24 of 182...
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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.
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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.
DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual PC with Wi-Fi Adapter 1. To connect via USB modem: 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.
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.
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...
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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.
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).
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DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual Right after the first access to the web-based interface you are forwarded to the page for changing the administrator password specified by default. Figure 18. The page for changing the default administrator password.
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 19. 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual On the quick settings page you can run a needed Wizard, quickly get to some pages of the web- based interface, search for a specific page, or switch to the advanced settings section.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual Figure 21. 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 80).
DSL-2750U Wireless N ADSL2+ USB Modem Router Installation and Connection User Manual The pages of the Control section are designed for creating restrictions on access to the Internet (for the description of the page, see the Control section, page 160).
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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 24. The top-page menu. Click the Reboot line if you have already saved the router's settings.
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 25. Configuring a WAN connection. Connect a phone cable, Ethernet cable, or USB modem to the router (see the Connecting to PC section, page 18).
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 26. 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...
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 27. 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 28. The page for selecting a port or interface.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Creating WAN Connection PPPoE or PPPoA Connection Figure 29. Configuring PPPoE WAN connection. In the Connection name field, specify a name for the connection for easier identification.
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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 ATM section. Parameter Description Connection name A name for connection for easier identification. Virtual Path Identifier.
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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.
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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 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.
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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 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.
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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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Miscellaneous Enable RIP Select the checkbox to allow using RIP for this connection. Select the checkbox to allow multicast traffic from the external Enable IGMP Multicast network (e.g.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual IPoA or Static IP Connection Figure 34. 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.
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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 ATM and IP sections. Parameter Description Connection name A name for connection for easier identification.
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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.
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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 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 37. 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Select the checkbox to allow the router to use tagged VLAN Use VLAN connections. An identifier for the VLAN. The field is displayed when the Use VLAN ID VLAN checkbox is selected.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Dynamic IP Connection Figure 38. 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.
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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 ATM and IP sections. Parameter Description Connection name A name for connection for easier identification.
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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.
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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 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 41. 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Select the checkbox to allow the router to use tagged VLAN Use VLAN connections. An identifier for the VLAN. The field is displayed when the Use VLAN ID VLAN checkbox is selected.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Bridge Connection Figure 42. 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.
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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 ATM and VLAN sections. Parameter Description Connection name A name for connection for easier identification. Virtual Path Identifier.
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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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 44. 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.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual 3G Connection Figure 45. 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 –...
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 46. 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description The maximum size of units transmitted by the interface. Optional. 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Miscellaneous Select the checkbox if you want one WAN IP address to be used for all computers of your LAN. Select the checkbox to enable protection against ARP and DDoS Firewall attacks.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual LTE Connection Figure 48. Configuring LTE WAN connection. In the Connection name field, specify a name for the connection for easier identification. If your ISP has provided the addresses of the DNS servers, deselect the Obtain DNS server addresses automatically checkbox and fill in the Primary DNS server field.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 49. Configuring LTE WAN connection. The expert settings mode. The IP and Miscellaneous sections. 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Select the checkbox if you want one WAN IP address to be used for all computers of your LAN. Select the checkbox to enable protection against ARP and DDoS Firewall attacks.
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 50. Checking the Internet availability. In the Result section, the status of the WAN connection and possible causes of malfunctions are displayed.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Configuring Wireless Connection Figure 51. 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.
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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.
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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.
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 54. The page for selecting the operating mode for the wireless network.
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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 55. Page for changing the name of the wireless LAN.
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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.
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.
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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...
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 • IP addresses leased by the DHCP server •...
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 59. The Status / DSL status page.
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).
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 61. The Status / Routing table page.
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 62. The Status / Clients page.
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.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Creating ADSL WAN Connection Figure 64. The page for creating a new connection. The General settings and ATM sections. Parameter Description General settings Provider Leave the Manually value.
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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.
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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.
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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.
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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 67. The page for creating a new connection. The PPP section. Parameter Description Username A username (login) to access the Internet.
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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.
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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.
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 EtherWAN section, page 127).
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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.
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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 70. 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.
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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 71. The page for creating a new connection. The PPP section. Parameter Description Username A username (login) to access the Internet.
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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.
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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.
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 3G modem menu and enter the PIN code on the page displayed (see the 3G Modem section, page 146).
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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...
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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.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Creating LTE WAN Connection Figure 75. The page for creating a new connection. The General settings and 3G modem sections. Parameter Description General settings Provider Leave the Manually value.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 76. The page for creating a new connection. The IP and Miscellaneous sections. Parameter Description Obtain DNS server Select the checkbox to configure automatic assignment of DNS addresses server addresses.
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 77. Basic settings of the local interface. If needed, edit the basic parameters of the local interface.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Select the checkbox so that the devices connected to the router obtain the address of the router as the DNS server address. DNS Relay Deselect the checkbox so that the devices connected to the router obtain the address transmitted by the ISP or specified on the Advanced / DNS page as the DNS server address.
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.
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(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).
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 81. The default security settings. By default, the Open network authentication type with no encryption is specified for the WLAN.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual The router supports the following authentication types: Authentication type Description Open authentication (with WEP encryption for wireless network Open modes not supporting 802.11n devices). Shared key authentication with encryption.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual When the Open or Shared value is selected, the WEP Encryption settings section is displayed (the section is unavailable for the wireless network operating modes which support the standard 802.11n):...
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Keys for WEP encryption. The router uses the key selected from the Encryption Key WEP (1- Default Key ID drop-down list. It is required to specify all the fields.
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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 85. 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.
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 86. The list of the wireless clients.
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.
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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 Apply button. When the checkbox is selected, the Information and Connection sections are available on the page.
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.
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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.
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 88.
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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.
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 the UPnP function • define interface groups • allow the router to connect to a private Ethernet line •...
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 in the router allows using the UPnP IGD protocol for automatic configuration of the device's parameters for network applications requiring an incoming connection to the router.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description Comments Information transmitted by a client's network application. Page 123 of 182...
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 WAN 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 91. The page for adding a new group of ports. You can specify the following parameters: Parameter Description A name for the group for easier identification. You can specify any Name name.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description In this section the LAN ports of the router are displayed. Ports which cannot be added to the group are highlighted in red. To add a port to the group, click the icon corresponding to this port.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual EtherWAN On the Advanced / EtherWAN page, you can configure the router to connect to a private Ethernet line. The Ethernet WAN function allows using any Ethernet port of the router to access the Internet via Ethernet technology.
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 93. The Advanced / DDNS page.
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 94. 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).
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.
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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 Apply button. To remove an existing route, select the checkbox located to the left of the relevant line in the table and click the Apply button.
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 Apply button.
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.
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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 Apply 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 Apply button.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Miscellaneous On the Advanced / Miscellaneous page, you can enable SIP, RTSP, and the PPPoE pass through function for the router. SIP is used for creating, modifying, and terminating communication sessions. This protocol allows telephone calls via the Internet.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To enable the PPPoE pass through function, select the PPPoE pass through checkbox and click the Apply button. To disable the PPPoE pass through function, deselect the PPPoE pass through checkbox and click the Apply button.
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 MAC filter.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 100. 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.
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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).
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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 102. 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...
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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...
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.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual MAC Filter On the Firewall / MAC filter page, you can configure MAC-address-based filtering for computers of the router's LAN. Figure 104. The Firewall / MAC filter page.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To edit a rule for filtering, select a needed field in the relevant line of the table, change its value, and click the Apply button. To remove a rule for filtering, select the checkbox located to the left of the relevant line in the table and click the Apply button.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual 3G 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...
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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 level signal level shows that you are out of the coverage area of the selected operator's network.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual On the 3G 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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 107. The 3G modem / PIN page. The Changing PIN code tab. 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 Apply button.
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 •...
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To disconnect one volume of the storage, select the needed value from the USB storage drop- down list and click the Unmount volume button. 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.
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.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Samba On the USB storage / Samba page, you can enable the built-in Samba server of the router to provide access to the USB storage for users of your LAN.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual On the USB storage / FTP page, you can enable the built-in FTP server of the router to provide access to the USB storage for users of your LAN.
60 seconds. In the DLNA server name field, specify a new name of the DLNA server for easier identification in your LAN or leave the value specified by default (D-Link DLNA Server). Use digits and/or Latin characters.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual To undo the last changes, click the Reset button. After specifying the needed parameters, click the Apply button. To remove a folder from the list, select the checkbox in the line containing the relevant folder and click the Apply button.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Transmission In this menu you can configure the built-in Transmission torrent client and manage distributing and downloading processes. Transmission Settings On the Transmission / Transmission settings page, you can configure all needed settings for the built-in Transmission client.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Parameter Description The maximum number of files which clients can download Open files limit simultaneously. The maximum number of the service users from which you can Peer limit download files.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Web-interface Page Using the web-based interface of the built-in Transmission torrent client you can manage the process of downloading files to the USB storage connected to the router.
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 certain web sites. URL Filter On the Control / URL filter page, you can specify restrictions on access to certain web sites.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 117. The Control / URL filter page. The URL addresses tab. Click the Add button and enter an address in the field displayed. Then click the Apply button.
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 •...
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 settings via TELNET.
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.
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 120. The System / System log page. The Configuration tab.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Control Description A port of the host specified in the Server field. By default, the value Port 514 is specified. After specifying the needed parameters, click the Apply button.
To enable the automatic check for firmware updates, in the Remote update section, select the Check for updates automatically checkbox and click the Apply settings button. By default, in the Remote server URL field, the D-Link update server address (fwupdate.dlink.ru) is specified.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Local Update Attention! Do not turn off the router before the firmware upgrade is completed. This may cause the device breakdown. To update the firmware of the router locally, follow the next steps: 1.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Remote Update Attention! Do not turn off the router before the firmware upgrade is completed. This may cause the device breakdown. To update the firmware of the router remotely, follow the next steps: 1.
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.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual When the router is powered off or rebooted, the system time is reset to the default value. If you have set automatic synchronization for the system time, the internal clock of the device will be configured after connecting to the Inter net.
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.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Telnet On the System / Telnet page, you can enable or disable access to the device settings via TELNET from your LAN. By default, access is enabled.
DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Users On the System / Users page, you can create user accounts to provide access to data on the USB storage connected to the router. Figure 126. The System / Users page.
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DSL-2750U Wireless N ADSL2+ USB Modem Router Configuring via Web-based Interface User Manual Figure 127. The page for adding a user. On the opened page, in the Login field, specify a username, and in the Password and Password confirmation fields – the password for the account. You can use letters of the Latin and Russian alphabets (uppercase and/or lowercase) and digits.
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.
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).
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 Complementary Code Keying CDMA Code Division Multiple Access Cyclic Redundancy Check...
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DSL-2750U Wireless N ADSL2+ USB Modem Router Abbreviations and Acronyms User Manual Long Term Evolution Media Access Control Maximum Transmission Unit Network Address Translation Network Time Protocol OFDM Orthogonal Frequency Division Multiplexing Push Button Configuration Personal Identification Number PPPoA Point-to-Point Protocol over ATM...
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DSL-2750U Wireless N ADSL2+ USB Modem Router Abbreviations and Acronyms User Manual Virtual Path Identifier Wide Area Network Wired Equivalent Privacy Wi-Fi Wireless Fidelity WLAN Wireless Local Area Network Wi-Fi Protected Access Wi-Fi Protected Setup Page 182 of 182...
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