USRobotics SureConnect ADSL Ethernet/USB Router User Guide
Windows 95, 98, NT 4.0, Me, 2000, XP or later, Mac and Linux
Web User Interface
The Web User Interface (WUI) is one of three router user interfaces. The other interfaces are the Terminal User Interface (TUI) and Command Line Interface (CLI). Each interface allows you to set up, modify, and view router configuration variables and operational data.
The Web User Interface is a system of graphical menus. Menu pages control router parameters and provide information about them. The WUI organizes these router parameters into six topics. Here are the six topics, in the order that the WUI displays them...
This part of the manual discusses all but the Quick Setup topic. You’ll find information on using the Quick Setup feature in the Quick Installation Guide.
This manual begins topic discussions with a picture of the top-level menu screen. A description of screen terms and procedures follows each screen shot. Either text or a table defines screen variables. Afterward, summarized, step-by-step procedures often follow.
Selecting Topics. When you look at a menu page, notice the divider tabs at the very top of the page. You can access any of the six router configuration and information topics by clicking on its tab. The graphic below portrays the six divider tabs as they appear on a menu.
Configuration Options. Most menus present configuration options and prompt you for a response. For example, the screen may help you to set up service provider, network or firewall parameters. Some menus offer additional or more specific options by presenting lower-level (secondary) screens. The bottom of many screens includes a set of graphical buttons. Clicking one of the buttons with your mouse determines the disposition of options on the page. For example…
Selecting or Enabling Features. You can select menu options by clicking radio buttons or checking boxes on the screen. In either case, use your mouse to make selections. Radio buttons allow you to select only one of several options. Checkboxes allow you to enable none, one or many features. The graphic below includes examples of both radio buttons and checkboxes.
Accessing the Web User Interface
Your router includes the SureConnect ADSL Web Utility. This Web utility displays after you complete installation.
To access the Web User Interface, follow these steps…
Use this menu option to configure an ISP connection. ADSL employs Asynchronous Transfer Mode (ATM) protocol to send data to the Internet Service Providers. An ATM circuit uses Permanent Virtual Circuit (PVC) as pathway to identify and route modem data. The USRobotics Ethernet/USB Router supports multiple PVC connections for multiple ISPs.
To configure a PVC…
If you chose RFC1483 Bridged mode, follow these steps…
If you chose RFC1483 Routed mode, follow these steps…
If you chose PPPoE mode, follow these steps…
If you chose PPPoA mode, follow these steps…
If you chose MER mode, follow these steps…
Proceed to the Tools Menu to save your changes.
The ADSL Standard menu configures the ADSL protocol. You’ll find four supported protocols: Multi-mode, T1.413, G.dmt and G.lite. Your ISP determines the protocol to use. In most cases, Multi-mode should allow a connection to the ISP.
PPPoE Relay protocol supports multiple PPPoE sessions through the router, on a LAN interface, over an RFC1483 Bridged PVC. The router supports multiple sessions by maintaining a mapping table. In this table, each entry represents one session. The Client / Server side MAC address and the Session Id provide the basis for the mapping. Refer to WAN setup instructions on configuring PPPoE. The PPPoE Relay option requires an ATM PVC (server) and a LAN interface (client). The client initiates a PPPoE session with the server via a third-party PPPoE client. Follow these steps…
This screen provides the option of enabling or disabling MER PVC. From this screen, you can also change this PVC’s ATM values. The MER Interface is an RFC1483 Bridged PVC, terminated in the router with a static public address. The ISP provides the static public address. This type PVC operates with Network Address Translation (NAT) and DHCP. These protocols allow the router to serve LAN users with private addresses.
You can group router LAN interfaces. Grouping allows forwarding of their Ethernet frames to an ATM interface. The USRobotics Ethernet/USB Router defaults to bridging on three ports: ETH1, ETH2 and USB. The router bridges these ports to the atm0 interface or the first PVC under WAN SETUP.
To change the grouping…
To bind the LAN Interfaces to an ATM interface, select “Add Bridge.”
Use the Advanced Interface menu to configure LAN, PPP and ATM interfaces. Follow these steps…
• Interface mer0 usage is reserved. Its status is always Down.
• Interface ADSL0 is the ADSL SNMP interface.
• Interface lo0 is the loopback interface. When you perform an OAM loopback, the status field displays UP.
• Interfaces Atm0 to Atm 7 display the interfaces configured for RFC1483 bridged mode or RFC 1483 routed mode.
• Interfaces pppo to ppp7 display the interfaces configured for PPPoE or PPPoA.
• Dynamic IP address from DHCP: Selecting this option allows the DHCP Server to assign the IP address.
• Static IP address:
Selects the IP address to be statically assigned.
• Interface: The name of the selected interface.
• IP address: The IP address of the selected interface.
• Subnet Mask: The subnet mask of the selected interface.
• MTU: Sets the maximum transmission unit of the interface. The MTU limits the size of packets that transmit on an interface. Not all interfaces support the MTU parameter. Some interfaces, like Ethernet, have range restrictions (80 - 1500).
• Speed: Auto, 10 Mbps, or 100 Mbps.
• State: Enable and Disable. When you set an interface to Disable, the system won’t attempt to transmit messages through that interface. When you set an interface to Enable, you can transmit messages through the interface.
Use the Advance–VCC menu to add and delete ISP connections. This menu also includes options to enter ATM Quality of Service (Qos) parameters. The Advance–VCC menu operates similarly to the WAN Setup menu.
The menu only supports Data type ATM circuits.
To list the Quality of Service setting per PVC, click the Show QOS Settings button.
Advance–VCC Menu Add Parameters
Advance–PPPOE. Use Advance–PPPoE to connect to, or disconnect from a PPPoE server. Click Start to use the connection. Click Stop to disconnect. The menu also includes two other button options. Click Default to make the ISP connection your default connection. Click Delete to delete the connection.
Advance–PPPOA. Use Advance–PPPoA to connect to, or disconnect from a PPPoA server. Click Start to use the connection. Click Stop to disconnect. The menu also includes two other button options. Click Default to make the ISP connection your default connection. Click Delete to delete the connection.
Use LAN Setup to set the router’s IP Address and Subnet Mask. The LAN IP address allows you to connect the router to your LAN. This address also allows you to manage the router from your LAN. A LAN (Local Area Network) connects computers in the same building or area.
Subnet masks split one network into a set of mini networks or subnets. Subnetting helps to reduce traffic on each subnet. Subnetting also makes the network more manageable. Each subnet functions as if it were an independent network.
To set up the LAN…
NOTICE. The LAN setup process changes the IP address of the Web User Interface. The apply action causes the router to save your current configuration and then restart. After the router restarts, you'll have to reapply to the Web User Interface using a new IP address.
DHCP stands for Dynamic Host Configuration Protocol. This protocol dynamically assigns IP addresses and related information to Local Area Network (LAN) nodes. For temporarily connected network users, DHCP provides safe, reliable, and simple TCP/IP network configuration.
The top DHCP menu screen lists DHCP server entries. To remove the entry…
You can also start or stop the DHCP server by clicking Start/Stop.
To create a new DHCP server entry, click Add.
Note: Before adding a new DHCP server entry, you must first stop the DHCP server.
The following screen appears:
Configure the following parameters:
•Interface. LAN port that the DHCP server will support.
•Starting IP Address. First IP address in a block of addresses. The DHCP server uses this address in responding to a LAN port node’s DHCP request.
•End IP Address. Last IP address in a block of addresses. The DHCP server uses this address in responding to a LAN port node’s DHCP request.
•Gateway. IP address of the Default Gateway or Router that the node will use.
•Netmask. Subnet Mask for the LAN that the node will be on.
•DNS. Domain Name Server. The DNS that the node will use. DNS is a server with a database. The database translates a domain name into a corresponding IP address. For example, “USR.com” resolves into IP address 231.222.320.4. Communications over the LAN between the node and USR.com web site use this address.
•Lease Time. Number of days that the node can use a DHCP lease. Subsequently, you must renew the lease with the DHCP server.
Suppose that a Dynamic Host Configuration Protocol (DHCP) server resides on a different LAN than the node broadcasting for DHCP service. Then the DHCP broadcast request must be forwarded across the router/WAN to a subnet where a DHCP server resides. The router must relay the DHCP request. DHCP relay assures that the requesting node receives an IP address that corresponds to the node’s subnet. The router must have a record of the DHCP server’s IP address.
With this address, the router can correctly direct the request to the appropriate DHCP server.
After you input the IP address into the menu, start the relay agent by clicking Start.
The DNS Relay function supports forwarding of DNS requests from a LAN node to a known DNS server.
•Domain Name. Internet site address that the router is a group of (i.e. usr.com).
•Primary DNS Server. IP address of the Primary DNS that the router will use. Domain Name Server (DNS) is a server with a database. This server translates a domain name into the corresponding IP address. For example, USR.com resolves into IP address 231.222.320.4. Communications over the LAN between the node and web site USR.com use this address.
•Secondary DNS Server. IP address of the Secondary DNS that the router will use.
•Gateway. IP address of the Default Gateway the Router is to use.
•DNS Relay. Enabling or Disabling router ability to convey a DNS request from a LAN node.
To save and install DNS relay data…
A router forwards data packets between local area networks (LANs) or wide area networks (WANs). Based on routing tables and routing protocols, routers read the network address in each transmitted packet. Routers then decide where to send the packet. A router bases this decision on the best route. The Routing Setup menu allows the user to configure how the router forwards received IP packets.
Routing Information Protocol (RIP) is a routing protocol and is part of the TCP/IP suite. RIP determines a route based on the smallest hop count between source and destination. RIP determines the smallest hop count by communicating with other routers within the network. Only use RIP if the target router also utilizes RIP.
•RIP Status=On/Off selection.
•Version= Version 1 (RIP1) or Version 2 (RIP2). Should match RIP versions used by other routers in the network.
To save and install RIP data…
Use the Routing Setup area to add, delete or modify static routes. Static routes are permanent routes that the router stores. The router uses these routes when determining where to forward IP packets that it receives.
•Destination Network ID. IP address of the network that you’re defining in the table.
•Destination Subnet Mask. Network Subnet Mask of the defined entry in the table.
•Next Hop IP. IP address of the next router that will forward packets to the destination network.
•Add. Add information to the routing table.
•Modify. Modifies an entry. To modify an entry…
•Delete. Used to delete an existing entry. To delete…
•Erase All. Erases all routes in the List of Static Routes. This feature won’t erase networks defined on interfaces of the router.
List of Static Routes
The list of networks known by the router. The list also includes the Next Hop to get to these networks. Static routes may be networks added statically or learned from other networks.
Transparent bridges use the spanning tree algorithm to dynamically determine the best source-to- destination path. This algorithm avoids bridge loops (multiple paths linking one segment to another) within a network. The algorithm determines all redundant paths and makes only one of them active. The spanning tree protocol (STP) is part of the IEEE 802.1d standard.
List of Spanning Tree Entries
List all known router bridging ports and their current state.
To view the current state of the spanning tree bridge click Parameters. The following screen appears…
To close the screen, click Continue.
To configure a port, click Config Port. The following screen appears…
•Interface Name. Router interface to be configured for spanning tree.
•Link Cost. Cost associated with that interface. Based on this cost, the bridge decides which link to forward data over. The options range from 0 to 65,535.
•Port Priority. Determines which port becomes the root port. Options range from 0 to 255.
•Bridge Priority. Determines which bridge becomes the root bridge. Options range from 0 to 65,000.
•Max Age Time. All bridges in the bridged LAN use this timeout value. The root sets Max Age value. Options range from 1 to 60 seconds.
•Hello Time. Time interval between generations of configuration BPDUs (Bridge Protocol Data Units). The root generates configuration BPDUs. Options range from 1 to 10 seconds.
•Forward Delay Time. All bridges in the bridged LAN use this timeout value. The root sets the forward delay value. Options range from 1 to 200 seconds.
To configure port information…
1. Input the information.
2. Click Apply.
Spanning Tree - MAC Filters
The MAC address is a unique serial number burned into Ethernet adapters. This address distinguishes the network card from others. MAC Filters allow or reject WAN access for specific machines.
•List of MAC Address Filters. Known MAC addresses and the ports on which the router learned the addresses.
To view current filter states, click Parameters. The following screen appears…
To close the screen, click OK.
To add a static MAC address to the table, click Add. The following screen appears…
•MAC Address. Static MAC address to add to the table.
•Frame. What the router should do with a data frame from this MAC address. The options are Forward or Drop.
To set the Add/Modify Filter information…
To delete an entry from the List of MAC Address Filters…
To modify a MAC address in the List of MAC Address Filters, or to make the address static…
To erase all non-static MAC addresses, click Erase All.
Click the IP Filtering header and view the List of Firewall Policies. The firewall’s factory-default setting is “Deny All.” The router includes factory-configured policies that allow access from LAN to WAN.
List of Firewall Policies
This screen displays the current list of firewall policies as defined in the router. The list appears in table form.
To remove an entry…
To add new policies, click Add. The following screen appears:
On the Firewall Configuration page, notice the header “Policy Parameters.” The Policy Parameters menu presents you with the following onscreen options …
• Precedence. Priority of the policy that you’re creating. Options range from 0 to 65,535. The lower precedence number takes priority.
• Src IP Address. Data source. Enter either a specific IP address or network address.
• Src Net Mask. Subnet Mask for the data’s network source. Options range from /12 (255.240.0.0) to /32 (255.255.255.255).
• Dest IP Address
. Data destination. Enter either a specific IP address or network address.
• Dest Net Mask. Subnet Mask for the data’s network destination. Options range from /12 (255.240.0.0) to /32 (255.255.255.255).
• Source Port. Transport layer source port. Options range from 0 to 65,535.
• Destination Port
. Transport layer destination port. Options range from 0 to 65,535.
• Protocol. IP protocols to be filtered. Options are: Any (all), TCP, UDP, ICMP, AH, ESP.
• TCP Flags. Filtering of the TCP Flags that control session setup and termination. Options are: None, urg (Urgent), ack (acknowledgement), psh (push), rst (reset), syn (synchronize), fin (finished).
To edit a firewall parameter…
To create a new firewall parameter, Click the radio button beside “New Action.” The screen presents you with a number of options and sub-options…
§ Allow. Permits packets to enter or leave the system.
§ Reset. Forces the TCP connection to reset.
§ Reject. Drops the packet and issues an “unreach host” ICMP error.
§ Deny. Drops the packet.
To save and install firewall configuration data…
NOTICE. Check your firewall configuration data. See View Actions at the top menu. There, you’ll find a selection List of Firewall Policies. This selection summarizes the action that you entered for each parameter. When you click View Actions, the following screen appears.
Click the IGMP Proxy radio button and view the List of IGMP Proxy Entries.
List of IGMP Proxy Entries
This screen displays a list of IGMP Proxy entries.
IGMP (Internet Group Membership Protocol) is a protocol. IP hosts use IGMP to report their multicast group memberships to immediately nearest routers.
To remove an entry…
To create a new IGMP Proxy entry, click Add. The IGMP Proxy Configuration screen appears…
IGMP Proxy Configuration
On the IGMP Proxy configuration Screen, follow these steps to set up your IGMP proxy…
To save and install IGMP Proxy Configuration data…
NAT=>List of Static WAN Addresses
From the List of Static Wan Addresses menu, you can remove or add entries. To remove an entry…
To create a new Static WAN Address entry, click Add. The Static WAN Address Configuration screen appears…
NAT=>Static WAN Address Configuration
Public IP Address. Public IP address that the router uses when translating network addresses.
To save and install Static WAN Address Configuration data…
NAT=>Port Range Mapping
Click the NAT header and view the List of Port Range Entries. NAT port range mapping allows the router to map public addresses and ports to private addresses and ports.
List of Port Range Entries
NAT stands for Network Address Translation. NAT enhances the power of Port Range Mapping. Together, they can map a local IP address and port to a public IP address and port.
To remove an entry…
To create a new Port Range entry: Click Add on the top screen. The Port Range Configuration screen appears…
NAT=>Port Range Configuration
To add a Static NAT entry, set the following parameters…
To save and install Port Range Configuration data…
NAT=>Static NAT Mapping
Static Network Address Translation (NAT) maps multiple local IP addresses to a public IP address.
List of Static NAT Configuration
From the List of Static NAT Configuration menu, you can remove or add static NAT entries. To remove a entry…
To create a new Static NAT Configuration entry, click Add. The Static NAT Configuration screen appears…
NAT=>Static NAT Configuration
To add a Static NAT entry, set the following parameters…
To save and install Static NAT Configuration data…
Proxy Services are specialized application programs. These programs accept users’ requests from LAN clients for Internet services like HTTP. On behalf of LAN clients, proxy services also set up connections to WAN servers. A proxy server authenticates against the user database (Access Control). The proxy server filters a request against the Access Control List (ACL). Then the server forwards the request to actual services. Proxy Servers are application specific. Each application needs its own proxy server.
To save and install proxy configuration data…
ACL (Access Control List)
The ACL List screen displays currently configured Access Control Lists (ACL).
To remove an ACL List entry…
To create a new ACL entry, click Add from the top screen. The following screen appears…
List of Users.
The List of Users allows you to delete or authorize user access privileges. To set up a new user account, you assign a username and password. With the username and password, you can open a new account with either administrative or ordinary privileges.
To delete a user account…
To create a new user entry…
User Configuration Parameters
To save and install User Configuration data…
To modify a User entry…
User Account Modification Parameters
To save and install user account modification data…
To change a user’s password,,,
User Password Change Parameters
To save and install User Modification Configuration data…
Simple Network Management Protocol (SNMP) is a software component that resides in a network device. SNMP responds to requests for information and action from a network management station. Within the network device, an object-like format called a Management Information Base (MIB) stores the information exchanged during SNMP.
The System function displays the SNMP parameter as assigned by the SNMP Administrator. Modify the default settings by following these steps...
NOTICE. To stop the SNMP agent, click Stop. The Stop button toggles to become the Start button. After the process ends, you can start the agent by clicking Start.
Configure the SNMP listening port by following these steps...
Set the agent to report up or down status by following these steps...
The Diagnostic feature can generate ATM or IP traffic for troubleshooting or testing your router’s configuration. Sometimes the request for a response fails. The failure may be due to your ISP’s disabling its equipment from responding to these requests. The ISP may disable responses for many reasons, including your security.
OAM Loopback generates two forms of ATM frames for testing the integrity of your ATM circuit. F5 Segment (F5 SEG) frames transmit, but the ISP’s ATM switch doesn’t loop them back. F5 End-to-End (F5 ETE) frames transmit and the ISP’s ATM switch replies.
To Start the OAM Loopback Test…
IP Address Ping Test
To Start the Address Ping Test…
Save and Restart
Whenever you make changes to the router’s configuration, the router saves the changes in temporary memory storage. A power loss or power switch disconnection can cause the router to lose changes. To make permanent changes, save changes and restart the router.
After you click Save, the router returns to the Save and Restart screen. You may reboot your router by clicking Restart. Another way to reboot is to turn the router off and on from the router’s power switch.
CAUTION. The Restart button doesn’t return you to the Save and Restart menu. You can return by either of two methods: Click the browser’s Back Arrow key. Or reenter the router management IP address on your browser’s address line.
Restore and Restart
The Restore and Restart option returns the router’s configuration to factory default settings.
CAUTION. During restoration to default settings, the router loses all your changes. After the restoration process completes, you must reenter changes.
To erase the current router configuration…
ADSL Line Status
Displays the current ADSL line status
Displays the ADSL standard within the current configuration. The standards are: MULTI, T1.413, G.dmt, and G.Lite.
Displays the upstream data rate, as negotiated by DSL link (Kb/s)
Displays the downstream data rate, as negotiated by DSL link (Kb/s)
Displays the current attenuation in decibels
Displays the current SNR margin in decibels
Displays the number of ATM cells received with errors since start of link.
Displays the version number of the firmware
15 min ES Counter
Displays the number of errors per second for the current 15-minute period
Displays the number of cyclical redundancy check errors per second since training
1 day ES Counter
Displays the number of errors per second for the current day
Interface Statistics displays the statistics for all interfaces.
Name of the interface
Indicates whether the interface is up or down
Number of received octets (in bytes)
Number of received unicast packets
Number of received broadcast packets
Number of received and discarded packets
Number of received errors
Number of transmitted octets (in bytes)
Number of transmitted unicast packets
Number of transmitted broadcast packets
Number of transmitted and discarded packets
Number of transmitted errors
The TCP-IP screen displays IP, UDP, TCP and ICMP statistics.
The DHCP-Lease displays names of devices on the network. These devices received an IP address from the router’s DHCP server address pools. The screen also displays how long you can use this IP.
The ATM Statistics Screen displays traffic statistics for Adaptation Layer 5 of the ATM protocol and encapsulation.
The AAL5 Screen totals transmitted and received cells. The screen also reports total CRC (Cyclical Redundancy Check) errors.
For the permanent virtual circuit (PVC), the SNDCP Screen organizes packet information by Encapsulation Method.
The Firewall Statistics Screen maintains flow-based statistics for incoming, outgoing and dropped packets. Flow statistics describe the source address, source port, destination address, destination port and protocol.
The Traffic Statistics Screen displays data about inbound, outbound and dropped packets.
The HTTP Proxy Statistics screen maintains data on the user. Software collects statistics for incoming packets, outgoing packets, incoming bytes and outgoing bytes. If you disable authentication, this screen displays statistics on the general user.