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

3g/adsl/ethernet router with wi-fi and built-in switch
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User Manual
DSL-2750U
3G/ADSL/Ethernet Router with
Wi-Fi and Built-in Switch
October 2012

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Summary of Contents for D-Link DSL-2750U

  • Page 1 User Manual DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch October 2012...

  • Page 2: Table Of Contents

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch User Manual Contents Chapter 1. Introduction..........4 Contents and Audience............4 Conventions..............4 Document Structure............4 Chapter 2. Overview..........5 General Information............5 Specifications..............6 Product Appearance............9 Front Panel...............9 Back Panel...............10 Delivery Package............11 Chapter 3. Installation and Connection......12 Before You Begin............12 Connecting to PC (in OS Windows XP)........13...
  • Page 3 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch User Manual Advanced..............60 SNMP..............60 UPnP..............62 Interface Grouping............63 DDNS..............65 DNS..............67 Routing..............68 ADSL..............70 Remote Access............71 Firewall..............73 IP Filters...............73 Virtual Servers............76 DMZ..............79 Application Rules............80 MAC Filter...............82 USB Modem..............85 Information..............86 PIN..............87 USB Storage..............89 Information..............89 Print Server.............90 Samba..............91...

  • 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 104.

  • Page 6: Specifications

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual Specifications Interfaces: • ADSL: 1 RJ-11 port • LAN: 4 RJ-45 10/100BASE-TX Fast Ethernet ports with auto-MDI/MDIX • WLAN: built-in 802.11b/g/n wireless interface • USB: USB 2.0 type A port.
  • Page 7 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual • Ethernet: ◦ IPoE ◦ PPPoE ◦ Bridge. ATM/PPP Protocols: • Bridged and routed Ethernet encapsulation • VC-based or LLC-based multiplexing • ATM Forum UNI3.1/4.0 PVC (up to 8 PVCs) •...
  • Page 8 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual • Intrusion detection system • DMZ • Port Triggering. QoS: • Interface grouping • 3 priority queues. USB: • USB modem: o Enabling/disabling PIN code check o Changing PIN code.

  • Page 9: Product Appearance

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual Product Appearance Front Panel Figure 1. Front panel view. Mode Description The router is powered on. Solid green The router is powered off. Power No light A malfunction of the router.

  • Page 10: Back Panel

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Overview User Manual Back Panel Figure 2. 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 11: Delivery Package

    • The “User Manual” and “Quick Installation Guide” documents in Russian and English are available on D-Link website (see ftp.dlink.ru/pub/ADSL/DSL-2750U/Description/). Using a power supply with a different voltage rating than the one included will cause damage and void the warranty for this product.

  • Page 12: 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 13: Connecting To Pc (In Os Windows Xp)

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Connecting to PC (in OS Windows XP) PC with Ethernet Adapter 1. Make sure that your PC is powered off. 2. Connect an Ethernet cable between any of four Ethernet ports located on the back panel of the router and the Ethernet port of your PC.
  • Page 14 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Figure 3. The Network Connections window. 3. In the Local Area Connection Properties window, on the General tab, in the This connection uses the following items section, select the Internet Protocol (TCP/IP) line.

  • Page 15: Pc With Wi-Fi Adapter

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Figure 5. The Internet Protocol (TCP/IP) Properties window. Click the ОК button. Now your computer is configured to obtain an IP address automatically. PC with Wi-Fi Adapter 1.

  • Page 16: Configuring Wi-Fi Adapter

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Configuring Wi-Fi Adapter 1. Click the Start button and proceed to the Control Panel > Network and Internet Connections > Network Connections window. 2. Select the icon of the wireless connection and make sure that your Wi-Fi adapter is on.

  • Page 17: 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 7. Connecting to the web-based interface of the DSL-2750U device. 3. On the opened page, enter the username (login) and password for the administrator account (by default, the following username and password are specified: admin, admin).
  • Page 18 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Figure 9. The system statistics page. For security reasons, it is strongly recommended to change the administrator password upon initial configuration of the router. To do this, proceed to the System / Administrator password page.

  • Page 19: Saving And Restoring Settings

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Installation and Connection User Manual Saving and Restoring Settings Note that you should regularly save the changes of the router's settings to the non- volatile memory. The router's web-based interface displays the notification on unsaved changes at the top of the page.

  • Page 20: Chapter 4. Configuring Via Web-Based Interface

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual CHAPTER 4. CONFIGURING WEB-BASED INTERFACE Status This menu displays data on the current state of the router. The following data are represented: connection status, active WAN connections, IP addresses leased by DHCP server, the routing table, network statistics, and data on network devices connected to the router.

  • Page 21: Dsl Status

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual DSL Status The information shown on the tabs of the Status / DSL status page can be used for troubleshooting and diagnosing connection problems. Figure 14. The Status / DSL status page.

  • Page 22: Wan Status

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual WAN Status The Status / WAN status page displays active WAN connections. Figure 15. The Status / WAN status page. Page 22 of 110...

  • Page 23: Dhcp

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual DHCP The Status / DHCP page displays the information on computers that have been identified by hostnames and MAC addresses and have got IP addresses from the DHCP server of the device, as well as the IP address expiration periods (the lease time).

  • Page 24: Routing Table

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Routing Table The Status / Routing table page displays the information on routes. The table contains destination IP addresses, gateways, subnet masks, and other data. Figure 17. The Status / Routing table page.

  • Page 25: Lan Clients

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual LAN Clients On the Status / LAN clients page, you can view data on network devices connected to the router. The page displays devices connected to the wireless network of the router, devices connected to the built-in switch of the router, and devices accessing the web-based interface of the router.

  • Page 26: Net

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch 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). Connections On the Net / Connections page, you can create and edit connections used by the router.

  • Page 27: Editing Local Interface Parameters

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Editing Local Interface Parameters To edit the parameters of the router's local area network, left-click the LAN connection on the Net / Connections page. On the Main tab, you can configure basic parameters of the router's LAN.
  • Page 28 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description General settings Name A name for this connection. Connection Type The type of network protocol used by this connection – IPoE. Enable The checkbox enabling this connection.
  • Page 29 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description An operating mode of the router's DHCP server. Enable: the router assigns IP addresses to clients automatically in accordance with specified parameters. When this value is selected, the Start IP, End IP, and the Lease time fields are displayed on the tab.
  • Page 30 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual On the Static DHCP tab, you can specify MAC address and IP address pairs. The tab is active when the router's DHCP server is enabled. Figure 22. The tab for configuring MAC-IP pairs.

  • Page 31: Creating 3G Wan Connection

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Creating 3G WAN Connection If the PIN code check is enabled for the SIM card inserted into your USB modem, then prior to creating a 3G WAN connection, proceed to the USB modem menu and enter the PIN code on the page displayed (see the USB Modem section, page 85).
  • Page 32 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 24. The page for creating a new connection. The PPP settings and Miscellaneous sections. Parameter Description PPP settings PPP Username A username (login) to connect to the network of the operator.
  • Page 33 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch 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.

  • Page 34: Creating Adsl Wan Connection

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Creating ADSL WAN Connection Figure 25. The page for creating a new connection. The General settings, Physical layer and VLAN settings sections. Page 34 of 110...
  • Page 35 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description General settings Name A name for connection for easier identification. A type of network protocol to be used by the connection. Available values: PPPoA •...
  • Page 36 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description (Constant Bit Rate): This service is used for applications that require a constant data rate. It is mostly used for transferring uncompressed audio and video, e.g. videoconferencing, interactive audio (telephony), audio/video distribution (television, distance education, e-shops), and retrieval (video-on demand, audio libraries).
  • Page 37 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description Miscellaneous Select the checkbox to allow multicast traffic from the external Enable IGMP Multicast network (e.g. video streaming) to be received. Select the checkbox if you want one WAN IP address to be used for all computers of your LAN.
  • Page 38 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The PPP settings section is displayed for the PPPoE and PPPoA connection types. Figure 27. The page for creating a new connection. The PPP settings section.
  • Page 39 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description Password confirmation The confirmation of the entered password (to avoid mistypes). Authentication Select a required authentication method from the drop-down list or algorithm leave the AUTO value.
  • Page 40 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The IP settings section is displayed for the IPoE and IPoA connection types. Figure 28. The page for creating a new connection. The IP settings section.

  • Page 41: Creating Ethernet Wan Connection

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Creating Ethernet WAN Connection Prior to creating an Ethernet WAN connection, specify a LAN port that will be used as the WAN port (see the Interface Grouping section, page 63).
  • Page 42 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description VLAN settings (The section is displayed, if the VLAN MUX Mode choice of the Ethernet WAN type radio button is selected on the Advanced / Interface grouping page.)
  • Page 43 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The PPP settings section is displayed for the PPPoE connection type. Figure 30. The page for creating a new connection. The PPP settings section. Page 43 of 110...
  • Page 44 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description PPP settings PPP Username 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 45 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The IP settings section is displayed for the IPoE connection type. Figure 31. The page for creating a new connection. The IP settings section. Parameter Description...

  • Page 46: Wi-Fi

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Wi-Fi In this menu you can specify all needed settings for your wireless network. Common settings On the Wi-Fi / Common settings page, you can enable your wireless local area network (WLAN).

  • Page 47: Basic Settings

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Basic Settings On the Wi-Fi / Basic settings page, you can configure basic parameters of the router's WLAN. Figure 33. Basic settings of the wireless LAN.
  • Page 48 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description If the checkbox is selected, other users cannot see your Wi-Fi Hide Access Point network. (It is recommended not to select this checkbox in order to simplify initial configuration of your WLAN.)

  • Page 49: Security Settings

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Security Settings On the Wi-Fi / Security settings page, you can modify security settings of the WLAN. Figure 34. The default security settings. By default, the Open network authentication type with no encryption is specified for the WLAN.
  • Page 50 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual When the Open value is selected, the WEP Encryption settings section is displayed: Figure 35. The Open value is selected from the Network Authentication drop-down list.
  • Page 51 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual When the WPA-PSK or WPA2-PSK value is selected, the WPA Encryption settings section is displayed: Figure 36. The WPA2-PSK value is selected from the Network Authentication drop-down list.

  • Page 52: Mac Filter

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual MAC Filter On the Wi-Fi / MAC-Filter page, you can define a set of MAC addresses of devices which will be allowed to access the WLAN, or define MAC addresses of devices which will not be allowed to access the WLAN.
  • Page 53 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 38. The tab for adding a MAC address. To remove a MAC address from the list of MAC addresses, select the checkbox located to the right of the relevant MAC address in the MAC-address list section and click the Delete button.

  • Page 54: Station List

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Station List On the Wi-Fi / Station List page, you can view the list of wireless devices connected to the router. Figure 39. The list of the router's wireless clients.

  • Page 55: Wps

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch 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 56: Using Wps Function Via Web-Based Interface

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual To activate the WPS function, select the WPS Enable checkbox and click the Change button. When the checkbox is selected, the Information and Connection sections are available on the page.

  • Page 57: Using Wps Function Without Web-Based Interface

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual To add a wireless device via the PBC method of the WPS function, follow the next steps: 1. Select the WPS Enable checkbox. 2. Click the Change button.

  • Page 58: Additional Settings

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Additional Settings On the Wi-Fi / Additional settings page, you can define additional parameters for the router's WLAN. Changing parameters presented on this page may negatively affect your WLAN! Figure 41.
  • Page 59 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual The following fields are available on the page: Parameter Description The time interval (in milliseconds) between packets sent to Beacon Period synchronize the wireless network. The minimum size (in bites) of a packet for which an RTS frame is RTS Threshold transmitted.

  • Page 60: Advanced

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Advanced This menu provides advanced settings of the router. On the pages of this menu, you can define static routes and rules for remote access to the web-based interface, add name servers, enable the UPnP function, define interface groups and allow the router to connect to a private Ethernet line, configure a DDNS service, enable the SNMP agent, and edit the ADSL connection parameters.
  • Page 61 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual To allow the router to use the SNMP agent, select the Enable/Disable SNMP checkbox and set the needed values in the fields on the page. Parameter...

  • Page 62: Upnp

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual UPnP On the Advanced / UPnP page, you can enable the UPnP function. UPnP is a set of networking protocols designed for automatic configuration of network devices. The UPnP function performs automatic configuration of the device's parameters for network applications requiring an incoming connection to the router.

  • Page 63: Interface Grouping

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Interface Grouping On the Advanced / Interface grouping page, you can assign virtual PVC connections to the router's ports (create groups of interfaces), which allows distinguishing different types of traffic.
  • Page 64 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 45. The page for adding a new group of ports. You can specify the following parameters: Parameter Description A name for the group for easier identification. You can specify any Name name.

  • Page 65: Ddns

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual DDNS On the Advanced / DDNS page, you can define parameters of the DDNS service, which allows associating a domain name with dynamic IP addresses. Figure 46. The Advanced / DDNS page.
  • Page 66 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 47. The page for adding a DDNS service. You can specify the following parameters: Parameter Description DDNS Service Select a DDNS provider from the drop-down list.

  • Page 67: Dns

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual On the Advanced / DNS page, you can add DNS servers to the system. Figure 48. The Advanced / DNS page. DNS servers are used to determine the IP address from the name of a server in Intranets or the Internet (as a rule, they are specified by an ISP or assigned by a network administrator).

  • Page 68: Routing

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Routing On the Advanced / Routing page, you can add static routes (routes for networks that are not connected directly to the device but are available through the interfaces of the device) into the system.
  • Page 69 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 50. The page for adding a static route. You can specify the following parameters: Parameter Description Destination network A destination network to which this route is assigned.

  • Page 70: Adsl

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual ADSL The Advanced / ADSL page includes the set of ADSL standards that should be defined by an ISP. Contact your ISP to set proper parameters. Select the relevant options and click the Change button.

  • Page 71: Remote Access

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Remote Access On the Advanced / Remote access page, you can configure remote access to the web-based interface of the router. By default, the access from external networks to the router is closed. If you need to allow access to the router from the external network, create relevant rules.
  • Page 72 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 53. The page for adding a rule for remote management. You can specify the following parameters: Parameter Description A name for the rule for easier identification. You can specify any Name name.

  • Page 73: Firewall

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Firewall In this menu you can configure the firewall of the router: add rules for IP filtering, define a DMZ- zone, create virtual servers, configure MAC-filters and the Port Triggering function.
  • Page 74 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 55. The page for adding a rule for IP filtering. Page 74 of 110...
  • Page 75 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual You can specify the following parameters: Parameter Description IP-filter rule editing Name A name for the rule for easier identification. A protocol for network packet transmission. Select a value from the Protocol drop-down list.

  • Page 76: Virtual Servers

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Virtual Servers On the Firewall / Virtual servers page, you can create virtual servers for redirecting incoming Internet traffic to a specified IP address in the local area network.
  • Page 77 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 57. The page for adding a virtual server. Page 77 of 110...
  • Page 78 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual You can specify the following parameters: Parameter Description Select a virtual server template from the drop-down list, or select Template Custom to specify all parameters of the new virtual server manually.

  • Page 79: Dmz

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch 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 80: Application Rules

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Application Rules On the Firewall / Application rules page, you can define rules for the Port Triggering function. Figure 59. The Firewall / Application rules page.
  • Page 81 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual You can specify the following parameters: Parameter Description Application rule editing Rules name A name for the rule for easier identification. Interface A WAN connection to which this rule will be assigned.

  • Page 82: Mac Filter

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual MAC Filter The MAC-address-based filtering allows forwarding and blocking traffic subject to the source and destination MAC addresses. MAC-address-based filtering is active only when the device is configured as a transparent bridge (the Bridge mode).
  • Page 83 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 62. The Firewall / MAC-filter page. The MAC-addresses tab. On the opened page, specify the needed parameters. Figure 63. The page for adding a rule for MAC-address-based filtering.
  • Page 84 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Parameter Description Source MAC-address The MAC address of the source host. Destination MAC-address The MAC address of the destination host. Direction Select a direction for which the rule will be applied.

  • Page 85: Usb Modem

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual USB Modem This menu is designed to operate USB modems. If the PIN code check for the SIM card inserted into your USB modem is not disabled, then upon the first access to the pages of the USB modem menu (under the current web-interface session) the page for checking the PIN code is displayed.

  • Page 86: Information

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Information On the USB modem / Information page, you can view data on the USB modem connected to the router. Figure 65. The USB modem / Information page.

  • Page 87: Pin

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual On the USB modem / PIN page, you can change the PIN code of the identification card inserted into your USB modem, disable or enable the check of the PIN code.
  • Page 88 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 67. The USB modem / PIN page. The PUK code check. If upon one of the operations described above you have entered an incorrect value in the PIN code field three times (the number of remaining attempts is displayed in the Attempts left field), the identification card inserted into your USB modem is blocked.

  • Page 89: Usb Storage

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual USB Storage In this menu you can view data on the connected USB storage and configure shared access to it for your LAN users. Also you can configure the router as a print server.

  • Page 90: Print Server

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Print Server On the USB storage / Print-server page, you can configure the router as a print server. Being configured in this way, the router will allow your LAN users to share the printer connected to the USB port of the router.

  • Page 91: Samba

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Samba On the USB storage / Samba page, you can create accounts used to access the USB storage connected to the router. Figure 70. The USB storage / Samba page.
  • Page 92 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual You cannot create accounts with the following usernames: admin , support , user , nobody . Then select the USB storage which will be accessed via this account from the USB storage drop- down list.

  • Page 93: Control

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Control This menu is designed to create restrictions on access to the Internet for users of your LAN: forbid access for specified computers and limit access to certain web sites.
  • Page 94 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 73. The page for adding a new parental control rule. Page 94 of 110...
  • Page 95 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual You can specify the following parameters: Parameter Description Parent control editing Select the checkbox to enable the rule. A name for the rule for easier identification. You can specify any Name name.

  • Page 96: Url Filter

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual URL Filter On the Control / URL-filter page, you can specify restrictions on access to certain web sites. Figure 74. The Control / URL-filter page. The Configuration tab.
  • Page 97 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Figure 75. The Control / URL-filter page. The URL-addresses tab. On the opened page, specify the needed parameters. Figure 76. The page for adding an address for the URL filter.

  • Page 98: System

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual System In this menu you can save the changed settings to the non-volatile memory, create a backup of the router's configuration, restore the router's configuration from a previously saved file, restore the factory default settings, view the system log, configure automatic synchronization of the system time, update the firmware of the router, and change the password used to access its settings.

  • Page 99: Configuration

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Configuration On the System / Configuration page, you can save the changed settings to the non-volatile memory, restore the factory defaults, backup the current configuration, or restore the router's configuration from a previously created file.

  • Page 100: System Log

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual System Log On the System / System log page, you can set the system log options and configure sending the system log to a remote host.
  • Page 101 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch 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 102: Firmware Upgrade

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual Firmware Upgrade On the System / Firmware upgrade page, you can upgrade the firmware of the router. Upgrade the firmware only when the router is connected to your PC via a wired connection.

  • Page 103: Ntp Client

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Configuring via Web-based Interface User Manual 7. Wait until the router is rebooted. Log into the web-based interface, using the default IP address, login and password (192.168.1.1, admin, admin). NTP Client On the System / NTP client page, you can configure automatic synchronization of the system time with a time server on the Internet.

  • Page 104: Chapter 5. Operation Guidelines

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Operation Guidelines User Manual CHAPTER 5. OPERATION GUIDELINES Supported USB Modems Huawei E150 • Huawei E1550 • Huawei E220 • ZTE MF626 • ZTE MF627. • Safety Instructions Place your router on a flat horizontal surface or mount the router on the wall (the mounting holes are located on the bottom panel of the device).

  • Page 105: 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 106: Creating Two Connections On One Channel

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Operation Guidelines User Manual Creating Two Connections on One Channel ADSL WAN Connections In some cases, it is necessary to assign two WAN connections (of the Bridge/IPoE/IPoA type) to one virtual channel (that is, to specify the same values of the VPI/VCI).

  • Page 107: Ethernet Wan Connections

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Operation Guidelines User Manual 12. Go to the Advanced / Interface grouping page. 13. Create a group containing the WAN connection of the Bridge type and the LAN 2 port. 14. Create another group containing the WAN connection of the IPoE type, the LAN 3 port, and the wireless interface.
  • Page 108 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Operation Guidelines User Manual Figure 85. Two WAN connections for one physical interface. 14. Go to the Advanced / Interface grouping page. 15. Create a group containing the WAN connection of the Bridge type and the LAN 2 port.

  • Page 109: Chapter 6. Abbreviations And Acronyms

    DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Abbreviations and Acronyms User Manual CHAPTER 6. ABBREVIATIONS AND ACRONYMS Third Generation Advanced Encryption Standard Address Resolution Protocol BSSID Basic Service Set Identifier Cyclic Redundancy Check DDNS Dynamic Domain Name System DDoS...
  • Page 110 DSL-2750U 3G/ADSL/Ethernet Router with Wi-Fi and Built-in Switch Abbreviations and Acronyms User Manual Network Time Protocol Push Button Configuration 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...

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