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Users Manual

PENTAGRAM Cerberus P 6311-072
The latest versions of manual, drivers and applications are available on www.pentagram.eu 2007-08-01
NOTE! Any information and technical data are subject to change without prior notification and/or indication in this manual. 2007 PENTAGRAM All rights reserved; copying and reproduction is strictly forbidden.

Cerberus P 6311-072

INTRODUCTION.... 5 FEATURES.... 5 PACKAGE CONTENTS... 7 PRODUCT OVERVIEW.... 7 IMPORTANT NOTES... 7 FRONT LEDS.... 7 THE REAR PORTS.... 8 DEFAULT SETTINGS... 8 RESETTING ROUTER... 9 CONNECTING CERBERUS TO COMPUTER.. 9 CONFIGURE TCP/IP.... 9 CONFIGURE ROUTER VIA WEB BROWSER.. 13 LOGIN.... 13 NAVIGATION... 14 QUICK START WIZARD... 15 INTERFACE SETUP TAB... 20 ADVANCED SETUP TAB... 27 ACCESS MANAGEMENT TAB... 35 MAINTENANCE TAB... 42 STATUS TAB... 46 HELP TAB.... 50 TROUBLESHOOTING.... 51 USING LEDS TO DIAGNOSE PROBLEMS.. 51 PROBLEMS WITH THE WEB INTERFACE.. 51 PROBLEMS WITH THE LOGIN USERNAME AND PASSWORD.. 52 PROBLEMS WITH LAN INTERFACE.. 52 PROBLEMS WITH WAN INTERFACE... 52 PROBLEMS WITH THE INTERNET ACCESS.. 53

Introduction

Thank you for purchasing the Cerberus P 6311-072 ADSL2+ Modem/Router by PENTAGRAM. Your new router is an all-in-one unit that combines an ADSL modem, ADSL router, Ethernet network switch and wireless Access Point to provide everything you need to get the machines on your network connected to the Internet over an ADSL broadband connection. The Cerberus P 6311-072 router complies with ADSL2+ standards for deployment worldwide and supports downstream rates of up to 24 Mbps and upstream rates of up to 1 Mbps. Designed for small office, home office and residential users, the router enables even faster Internet connections. You can enjoy ADSL services and broadband multimedia applications such as interactive gaming, video streaming and real-time audio much easier and faster than ever before.

Features

A 4-port 10/100Mbps fast Ethernet switch is built-in with automatic switching between MDI and MDI-X for 10Base-T and 100Base-TX ports, with auto detection allowing you to use either straight or cross-over Ethernet cables. With built-in 802.11g access point for extending the communication media to WLAN while providing the WEP, WPA/WPA2 and WDS for securing your wireless networks. Network Address Translation (NAT) allows multiple users to access outside resources such as the Internet simultaneously with one IP address/one Internet access account. Many application layer gateways (ALG) are supported such as web browser, ICQ, FTP, Telnet, E-mail, News, Net2phone, Ping, NetMeeting, IP phone and others. This protocol is used to enable simple and robust connectivity among stand-alone devices and PCs from many different vendors, and it makes setting up a network simple and affordable. UPnP architecture leverages TCP/IP and the Web to enable proximity networking in addition to control and data transfer among networked devices. With this feature enabled, you can seamlessly connect to Net Meeting or MSN Messenger. The Dynamic DNS service allows you to alias a dynamic IP address to a static hostname. This dynamic IP address is the WAN IP address. To use the service, you must first apply for an account from a DDNS service such as http://www.dyndns.org/. The Cerberus ADSL2 Wi-Fi Plus (P6311-6) provides an embedded PPPoE client function to establish a connection. You get greater access speed without changing the operation concept, while sharing the same ISP account and paying for one access account. No PPPoE client software is required for the local computer. Automatic Reconnect and Disconnect Timeout (Idle Timer) functions are also provided. Virtual Server: You can specify which services are visible to outside users. The router detects an incoming service request and forwards it to the specific local computer for handling. For example, you can assign a PC in a LAN to act as a Web server inside and expose it to the outside network. Outside users can browse inside the web server directly while it is protected by NAT. A DMZ host setting is also provided for local computers exposed to the outside Internet network. 5

Resetting router

Turn router on and wait for ADSL LED to lit or start blinking. Press and hold RESET button on the back panel of router for 5-10 seconds and then release it. After reset LEDs will return to their normal behavior and all settings will be reset to their default value. You can login web configurator using default username and password: admin / pentagram.
Connecting Cerberus to Computer.
If there is an available LAN card present on your PC, you just simply connect ADSL router and PC through the Ethernet cable. Once you establish Internet connection, you could browse the Web through the Ethernet cable.

Configure TCP/IP

This part will help you to configure your computer to communicate with router properly. Computer must be equipped with network adapter connected directly to router. You can also connect to router via network hub/switch. Default IP address of the router is 192.168.1.100 and subnet mask is 255.255.255.0. Fastest and easiest method to configure your computer is to obtain an IP address automatically from routers DHCP server. Make sure that TCP/IP protocol and network adapter are installed on your computer.

Windows Vista

Note: Network configuration require administrator privileges. When User Account Control window pops up, either click Continue (Administrator user) or select Administrator user and enter valid password (Standard user). 1. 2. 3. 4. Click Start Control Panel. Click View network status and tasks. Click View status for appropriate connection. On General tab, Click the Properties button.
On General tab, select Internet Protocol Version 4 (TCP/IPv4) and click Properties.
On General tab, select Obtain an IP address automatically and Obtain DNS server address automatically. Click OK to save settings and close Internet Protocol Version 4 (TCP/IPv4) Properties window.

Windows 2000/XP

1. Click Start Settings Control Panel. Double-click the Network Connections icon (2000/XP Classic view) or click Network and Internet Connections icon and then Network Connections icon (XP Default view). Double-click the Local Area Connection icon. On General tab, Click the Properties button.

Finishing the Wizard

The Quick Start wizard now has all the information it needs. You MUST click NEXT, to save configuration! Click on BACK to make changes or correct mistakes. Click on NEXT to save the current settings. Click on EXIT to exit the wizard without saving.
Your changes have been saved. Click on CLOSE. The Quick Start wizard window will close.

Interface Setup Tab

RIP (Routing Information Protocol): Select this option to specify the RIP version, including RIP1, RIP2-B and RIP2-M. RIP2-B & RIP2-M are both sent in RIP-2 format, the difference is that RIP2-M using Multicast and RIP2-B using Broadcast format. RIP Direction: Select this option to specify the RIP direction. None is for disabling the RIP function. Both means the ADSL Router will periodically send routing information and accept routing information then incorporate into routing table. IN only means the ADSL router will only accept but will not send RIP packet. OUT only means the ADSL router will only sent but will not accept RIP packet. IGMP (Internet Group Multicast Protocol): It is a session-layer protocol used to establish membership in a multicast group. The ADSL supports both IGMP version IGMP-v1 & IGMP-v2. Select None to disable it.

Internet

The Internet screen allows you to set up how your router connects to the Internet. If you already ran the Quick Start wizard, the information you provided to the wizard should be entered into the fields already. After you finish the changes, click on the SAVE button to save your changes.

ATM VC

ATM settings are used to connect to your ISP. Your ISP provides VPI, VCI, settings to you. In this Device, you can totally setup 8 PVCs on different encapsulations if you apply 8 different virtual circuits from your ISP. You need to activate the VC to take effect. For PVCs management, you can use ATM QOS to setup each PVC traffic lines priority. Virtual Circuit Select the VC number you want to setup. Status Select whether selected connection is Activated or Deactivated. VPI Virtual Path Identifier. The valid range for the VPI is 0 to 255. VCI Virtual Channel Identifier. The valid range for the VCI is 1 to 65635 (0 to 31 is reserved for local management of ATM traffic). ATM QoS Select the Quality of Service types for this Virtual Circuit. The ATM QoS types include CBR (Constant Bit Rate), VBR (Variable Bit Rate) and UBR (Unspecified Bit Rate). These QoS types are all controlled by the parameters specified below, including PCR, SCR, and MBS. PCR (Peak Cell Rate) Peak Cell Rate (PCR) is the maximum rate at which the sender can send cells. This parameter may be lower (but not higher) than the maximum line speed. 1 ATM cell is 53 bytes (424 bits), so a maximum speed of 832 Kbps gives a maximum PCR of 1962 cells/sec. This rate is not guaranteed because it is dependent on the line speed. SCR (Sustained Cell Rate) Sustained Cell Rate (SCR) is the mean cell rate of a burst, on-off traffic source that can be sent at the peak rate, and a parameter for burst-type traffic. SCR may not be greater than the PCR; the system default is 0 cells/sec. MBS (Maximum Burst Size) Maximum Burst Size (MBS) is the maximum number of cells that can be sent at the PCR. After MBS is reached, cell rates fall below SCR until cell rate averages to the SCR again. At this time, more cells (up to the MBS) can be sent at the PCR again. CBR (Constant Bit Rate) is for connections that support constant rates of data transfer. The only parameter you need to worry about in CBR is PCR. UBR (Unspecified Data Rate) is for connections that have variable traffic. The only parameter you need to worry about in UBR is PCR. rtVBR (real time Variable Bit Rate) is for connections that, while having variable traffic, require precise timing between traffic source and destination. PCR, SCR and MBS must all be set for rtVBR. nrtVBR (non real time Variable Bit Rate) is for connections that have variable traffic, do not require precise timing, but still require a set bandwidth availability. PCR, SCR and MBS must all be set for nrtVBR.

Encapsulation

Select the encapsulation protocol your ISP uses. The following section will vary depending on which encapsulation protocol you select.

Dynamic IP Address

Select this option if your ISP provides you an IP address automatically. Please enter the Dynamic IP information accordingly.
Encapsulation Select your encapsulation type from the dropdown list. NAT Select whether NAT (Network Address Translation) is Enabled or Disabled. Default Route Select whether this PVC will be the default route for Internet data. TCP MTU Option Enter TCP MTU (Maximum Transmission Unit) Value here. Dynamic Route Select the RIP type and direction from the dropdown lists. Multicast Select the multicast protocol you wish to use from the dropdown list.

Static IP Address

Select this option to set static IP information.
Encapsulation Select your encapsulation type from the dropdown list. Static IP Address Enter the static IP Address here. IP Subnet Mask Enter the IP Subnet Mask here. Gateway Enter the Gateway address here. NAT Select whether NAT (Network Address Translation) is Enabled or Disabled. Default Route Select whether this PVC will be the default route for Internet data. TCP MTU Option Enter TCP MTU (Maximum Transmission Unit) Value here. Dynamic Route Select the RIP type and direction from the dropdown lists. Multicast Select the multicast protocol you wish to use from the dropdown list.

PPPoA/PPPoE

Select this option if your ISP requires you to use a PPPoA/PPPoE connection.
Username Enter your username for your PPPoE/PPPoA connection. Password Enter your password for your PPPoE/PPPoA connection. Encapsulation Select your encapsulation type from the dropdown list. Half Bridge external IP address obtained from ISP will be transferred to first computer which will connect to and obtain IP address from router. Only this computer will have access to internet. Connection Select whether your connection is always on or if it connects on demand or manually. If on demand, specify how many minutes the connection may be idle before it disconnects. TCP MMS Option Enter the TCP MSS (Maximum Segment Size) you wish to use here. Get IP Address Choose whether the router obtains the IP address statically or dynamically. Static IP Address Enter the static IP address here. Only if you chose Static above. IP Subnet Mask Enter the IP subnet mask here. Only if you chose Static above. Gateway Enter the gateway here. Only if you chose Static above. NAT Select whether NAT (Network Address Translation) is Enabled or Disabled. Default Route Select whether this PVC will be the default route for Internet data. TCP MTU Option Enter TCP MTU (Maximum Transmission Unit) Value here. Dynamic Route Select the RIP type and direction from the dropdown lists. Multicast Select the multicast protocol you wish to use from the dropdown list.

Bridge Mode

The modem can be configured to act as a bridging device between your LAN and your ISP. Bridges are devices that enable 2 or more networks to communicate as if they are 2 segments of the same physical LAN. Please set the Connection type.
Encapsulation Select your encapsulation type from the dropdown list. 24
There are the IP settings of the LAN Interface for the device. These settings may be referred to as Private settings. You may change the LAN IP address if needed. The LAN IP address is provided to your internal network and cannot be seen on the Internet.

Router Local IP

IP Address Enter the IP address of your ADSL router in dotted decimal notation, for example, 192.168.1.2 (default setting). IP Subnet Mask Your ADSL router will automatically calculate the subnet mask based on the IP address that you assign. Unless you are implementing sub netting, use the subnet mask computed by the ADSL router. Dynamic Route Select the Dynamic Route from RIP1, RIP2-B, and RIP2-M. Please refer to Internet Dynamic Route. The only difference is the interface. Multicast IGMP (Internet Group Multicast Protocol) is a session-layer protocol used to establish membership in a multicast group. Please refer to Internet Multicast. The only difference is the interface. IGMP Snoop Choose Disable or Enable IGMP Snoop function.
The DHCP Server gives out IP addresses when a device is booting up and request an IP to be logged on to the network. It must be set as a DHCP client to obtain the IP address automatically. By default, the DHCP Server is enabled. The DHCP address pool contains the range of the IP address that will automatically be assigned to the client on the network. Disabled DHCP server is Disabled Enabled DHCP server is Enabled Relay router acts as a relay to different computer/device.

Disabled

Enabled
Starting IP Address Enter the starting IP address you wish to use as the DHCP server's IP assignment. IP Pool Count Enter the maximum user pool size you wish to allow. Lease Time Enter the amount of time you wish to lease out a given IP address. DNS Relay Select the DNS relay option you wish to use from the dropdown list. Primary DNS Enter the primary DNS server IP address you wish to use. For user discovered DNS only. Secondary DNS Enter the secondary DNS server IP address you wish to use. For user discovered DNS only.
A DHCP relay is a computer that forwards DHCP data between computers that request IP addresses and the DHCP server that assigns the addresses. Each of the devices interfaces can be configured as a DHCP relay. If it is enable, the DHCP requests from local PCs will forward to the DHCP server runs on WAN side. To have this function working properly, please run on router mode only, disable the DHCP server on the LAN port, and make sure the routing table has the correct routing entry.

DHCP Server IP for Relay Agent The DHCP server IP Address runs on WAN side. 26

Advanced Setup Tab

Firewall
Firewall Select this option can automatically detect and block Denial of Service (DoS) attacks, such as Ping of Death, SYN Flood, Port Scan and Land Attack. SPI Select this option to Enable or Disable the SPI feature. (NOTE: If you enable SPI, all traffics initiate from WAN would be blocked, including DMZ, Virtual Server, and ACL WAN side).

Routing

This table lists IP address of Internet destinations commonly accessed by your network. When a computer requests to send data to a listed destination, the device uses the Gateway IP to identify the first Internet router it should contact to route the data most efficiently. Select this option will list the routing table information. You can press ADD ROUTE to edit the static route. (As below screen)
ADD ROUTE click this button to set Static Routing information.
Destination IP Address This parameter specifies the IP network address of the final destination of packets routed by this rule. IP Subnet Mask Enter the subnet mask for this destination. Gateway IP Address Enter the IP address of the gateway. A gateway does the actual forwarding of the packets. Enter the gateways IP address in the field or select which PVC you wish to act as a gateway. The gateway is an immediate neighbor of your ADSL Router that will forward the packet to the destination. On the LAN, the gateway must be a router on the same segment as your Router; over Internet (WAN), the gateway must be the IP address of one of the remote nodes. Metric Metric represents the cost of transmission for routing purposes. IP Routing uses hop count as the measurement of cost, with a minimum of 1 for directly connected networks. Enter a number that approximates the cost for this link. The number need not to be precise, but it must between 1 and 15. In practice, 2 or 3 is usually a good number. Announced in RIP This parameter determines if the ADSL router includes the router to this remote node in its RIP broadcasts. If you choose Yes, the router in this remote node will be 28
Cerberus P 6311-072 propagated to other hosts through RIP broadcasts. If you choose No, this route is kept private and is not included in the RIP broadcasts. When you are done making changes, click on SAVE to save your changes, DELETE to delete the rule with the parameters you set, BACK to return to the previous screen or CANCEL to exit without saving.

What NAT Does

NAT changes the source IP address in a packet received from a subscriber (the inside local address) to another (the inside global address) before forwarding the packet to the WAN side. When the response comes back, NAT translates the destination address (the inside global address) back to the inside local address before forwarding it to the original inside host. Note that the IP address (either local or global) of an outside host is never changed. The global IP addresses for the inside hosts can be either static or dynamically assigned by the ISP. You may also designate servers, such as a Web server and a telnet server, on your local network and make them accessible to the outside world. With no servers defined, your router filters out all incoming inquiries, thus preventing intruders from probing your network. For more information on IP address translation, refer to RFC 1631, The IP Network Address Translator (NAT). Inside/outside indicates where a host is located relative to the router. The computers hosts of your LAN are inside, while the Web servers on the Internet are outside. Global/local indicates the IP address of a host in a packet as the packet traverses a router. The local address refers to the IP address of a host when the packet is in the local network, while the global address refers to the IP address of the host when the same packet is traveling in the WAN side. Note that inside/outside refers to the location of a host, while global/local refers to the IP address of a host used in a packet. Thus, an inside local address (ILA) is the IP address of an inside host of a packet when the packet is still in the local network, while an inside global address (IGA) is the IP address of the same inside host when the packet is on the WAN side. The following table summarizes this information.

Select this option to set ADSL Mode and ADSL Type information.
ADSL Mode Select which mode your ADSL connection uses from the dropdown list. The option has Auto Sync-up, ADSL2+, ADSL2, G.DMT, T1.413, G.LITE. ADSL Type Select the ADSL type you use from the dropdown list: ANNEX A, ANNEX I, ANNEX A/L, ANNEX M, ANNEX A/I/J/L/M. When you are done making changes, click on SAVE to save your changes.

Access Management Tab

Go to Access Management ACL to enable remote management. Access Control Listing (ACL) is a management tool that acts as a filter for incoming or outgoing packets, based on application. You may use telnet or Web to remotely manage the ADSL Router. User just needs to enable Telnet or Web and give it an IP address that wants to access the ADSL Router. The default IP 0.0.0.0 allows any client to use this service to remotely manage the ADSL Router.
ACL There has Activated & Deactivated option. The default setting is Deactivated which means all IP can access via router. If you choose Activated, you only can access via router by listed IP addresses. ACL Rule Index Index number from 1 and up to 16. Active Once you choose Yes then you can access the IP via router. Application Each of these labels denotes a service that you may use to remotely manage the Router. Choices are Web, FTP, Telnet, SNMP, Ping, ALL. Interface Select the access interface. Choices are WAN, LAN and Both. UWAGA! You must set one ACL index to access your router via LAN interface. If you dont, your router cannot access other listed IP Address. (Refer to Index 1). Remember! Once you active your ACL function, you only can access via router by listed Secure IP Address. When you are done making changes, click on SAVE to save your changes, DELETE to delete the rule with the parameters you set or CANCEL to exit without saving.

Filter

The Router provides extensive firewall protection by restricting connection parameters to limit the risk of intrusion and defending against a wide array of common hacker attackers. Appearance of this tab is dependent on option selected from Filter Type Selection list.

IP / MAC Filter

IP / MAC Filter enables you to filter data based on source MAC Address or source/destination IP Address or Port number.
IP / MAC Filter Set Index The IP / MAC Filter Set Index from 1 to 12 and each index can set up to 6 IP / MAC Filter. Interface Choices from PVC0 to PVC7 and LAN. 37
Cerberus P 6311-072 Direction Choices are Both, Incoming and Outgoing. Select which direction of data flow you wish to apply the filters to. Note that Incoming and Outgoing are from the point of view of your router, relative to the interface you select. For WAN, data coming from outside your system is considered Incoming and data leaving your system is Outgoing. For LAN, data leaving your system is considered Incoming and data entering your system is Outgoing. IP / MAC Filter Rule Index Select the IP / MAC Filter Rule Index you wish to modify. Rule Type Select filtering by IP or MAC address. Appearance of next paragraphs depends on option you select from this list. Active Toggle this rule index on or off with Yes or No, respectively. Source IP Address Enter the source IP address you wish to deny access to your system. Subnet Mask Enter the subnet mask of the source IP address. Port Number Enter the port number of the source IP address. Note that 0 means all that ports are allowed. Destination IP Address Enter the destination IP address that you wish to deny access to your system. Subnet Mask Enter the subnet mask of the destination IP address. Port Number Enter the port number of the destination IP address. Note that 0 means that all ports are allowed. Protocol Select the protocol to filter. Choices are TCP, UDP, and ICMP. MAC Address (only when MAC is selected in Rule Type option) enter source MAC address. Rule Unmatched Choices are Forward and Next. Select what happens to the data in question if the rule you are currently editing is unmatched. Next means that the data is then compared to the next IP filter rule. Forward means that the data will be allowed into your system. Note that a Forward rule should be the last rule, as no data will be compared to rules after a Forward rule. IP / MAC Filter Set Index Select the IP / MAC filter set you wish to view. Please follow below steps to set your IP Filter: IP / MAC Filter Set Editing: Choose your IP / MAC Filter Set Index, Interface and Direction options. Remember, Interface and Direction functions are affected with IP / st MAC Filter Set Index. EX: if your 1 index set of IP / MAC filter set PVC0 as st Interface and Outgoing as Direction, so the list of 1 IP / MAC Filter will be PVC0 and Outgoing as their settings IP / MAC Filter Rule Editing: Select the IP / MAC Filter Rule Index (up to 6 numbers for each set index), select IP as a Rule Type and choose Active option. As an example, Source IP Address is 192.168.1.10, Subnet Mask is 255.255.255.255, Destination IP Address & Subnet Mask is 0.0.0.0, Port Number is 80. And, Protocol sets TCP. From this setting, it filters 192.168.1.14, so it cannot access the web. Notice, each IP / MAC Filter Set Index can has up to 6 filters IP. At Rule Unmatched option, you must choose NEXT until the last filter IP choose Forward. After every setting is done, click SAVE to continue next IP / MAC Filter Editing.

Application Filter

Application Filter enables you to block popular Instant Messaging applications and Real Audio/Video.
Application Filter Select this option to Activate / Deactivate the Application filter. ICQ Select this option to Allow / Deny ICQ. MSN Select this option to Allow / Deny MSN. YMSG Select this option to Allow / Deny Yahoo messenger. Real Audio/Video Select this option to Allow / Deny Real Audio/Video.

URL Filter

URL Filter enables you to block access to web sites based on keywords.
Active Select Active to enable URL Filter. URL Index This is item number. URL Allow you to prevent users on your network from accessing particular websites by their URL.
The Simple Network Management Protocol (SNMP) is used for exchanging information between network devices. It enables a host computer to access configuration, performance, and other system data that resides in a database on the modem. The host computer is called a management station and the modem is called an SNMP agent. The data that can be accessed via SNMP is stored in a Management Information Database (MIB) on the modem.
Get Community Select to set the password for incoming Get- and GetNext request from management station. Set Community Select to set the password for incoming Set request from management station. The default password is public. When you are done making changes, click on SAVE to save your changes.
UPnP (Universal Plug and Play) is a distributed, open networking standard that uses TCP/IP for simple peer-to-peer network connectivity between devices. An UPnP device can dynamically join a network, obtain an IP address, convey its capabilities and learn about other devices on the network. In turn, a device can leave a network smoothly an automatically when it is no longer in use. UPnP broadcasts are only allowed on the LAN. UPnP hardware is identified as an icon in the Network Connections folder (in Windows XP & Windows ME). Each UPnP-compatible device that is installed on your network will appear as a separate icon.

UPnP You can choose Activated or Deactivated option from this session. 40
Cerberus P 6311-072 Auto-Configured UPnP network devices can automatically configure network addressing, announce their presence in the network to other UPnP devices and enable exchange of simple product and service descriptions. Choose Activated option to allow UPnP-enabled applications to automatically configure the ADSL Router so that they can communicate through the ADSL Router, for example by using NAT traversal, UPnP applications automatically reserve a NAT forwarding port in order to communicate with another UPnP enabled device; this eliminates the need to manually configure port forwarding for the UPP enabled application. If you dont want to make configuration changes through UPnP, just choose Deactivated. Click SAVE to save the setting to the ADSL Router.
The Dynamic Domain Name System allows you to update your current dynamic IP address with one or many dynamic DNS services so that anyone can contact you (in NetMeeting, CUSeeMe, etc.). You can also access your FTP server or Web site on your own computer using a DNS-like address (for instance myhost.dhs.org, where my host is a name of your choice) that will never change instead of using an IP address that changes each time you reconnect. Your friends or relatives will always be able to call you even if they don't know your IP address. First of all, you need to have registered a dynamic DNS account with www.dyndns.org. This is for people with a dynamic IP from their ISP or DHCP server that would still like to have a DNS name. The Dynamic DNS service provider will give you a password or key.
Dynamic DNS Choose the option for Activated or Deactivated DDNS. Service Provider The default Dynamic DNS service provider is www.dyndns.org. My Host Name Type the domain name assigned to your ADSL by your Dynamic DNS provider. E-mail Address Type your e-mail address. Username Type your user name. Password Type the password assigned to you. Wildcard support Select Yes or No to turn on DYNDNS Wildcard. Enabling the wildcard feature for your host causes *.yourhost.dyndns.org to be aliased to the same IP address as yourhost.dyndns.org. This feature is useful if you want to be able to use, for example, www.yourhost.dyndns.org and still reach your hostname. Click SAVE to save your changes. 41

Maintenance Tab

Administration
There is only one account that can access Web-Management interface-Administration. Admin has read/write access privilege. In this web page, you can set new password for admin.
New Password Type the new password in this field. Confirm Password Type the new password again in this field. Click SAVE to save your changes. Note: If you ever forget the password to log in, you may press the RESET button up to 6 second to restore the factory default settings. The Factory Default Settings for User Name & Password are admin & pentagram.

SysRestart

The SysRestart screen allows you to restart your router with either its current settings still in place or the factory default settings.
Cerberus P 6311-072 System Restart with If you wish to restart the router using the factory default settings (for example, after a firmware upgrade or if you have saved an incorrect configuration), select Factory Default Settings to reset to factory default settings. Otherwise, you can select Current Settings. You may also reset your router to factory settings by holding the DEFAULT button on the back panel of your router in for 10-12 second while the router is turned on. Click RESTART to start this process.

Diagnostics

The Diagnostic Test page shows the test results for the connectivity of the physical layer and protocol layer for LAN & WAN sides.
Virtual Circuit Select which PVC you wish to test from the dropdown list. The router will automatically run diagnostic tests on that circuit. A green PASS means that the given test was passed, a red FAIL means that the test was failed and a green SKIPPED means that the test was skipped.

Status Tab

Device Info
The Device Info screen is a tool that you use to monitor your ADSL Router. It shows the Firmware Version, WAN, LAN, and MAC address information. Note that these fields are readonly and are not meant for diagnostic purposes. Except the Virtual Circuit, click the drop-down list and select the name of the Virtual Circuit on which the system status is to be shown.

Device Information

Firmware Version This filed displays current firmware version. MAC Address The MAC (Media Access Control) or Ethernet address unique to your modem.
IP Address The LAN port IP address. Subnet Mask The LAN port IP subnet mask. DHCP Server The status of DHCP Server (Enabled or Disabled).
Virtual Circuit Click the drop-down list and select the name of the Virtual Circuit on which the system status is to be shown. Status Connected or Not Connected. Connection Type The WAN Connection Type. IP Address / Subnet Mask / Default Gateway / DNS Server Connection parameters. NAT The status of NAT Service (Enabled or Disabled).
ADSL Firmware Version This field displays current ADSL firmware version. Line State This field displays the ADSL connection process and status. Modulation This field displays the ADSL modulation status for G.dmt or T1.413. Annex Mode This field displays the ADSL annex modes for Annex A. Downstream / Upstream Status of SNR Margin, Line Attenuation and Data Rate: SNR Margin Amount of increased noise that can be tolerated while maintaining the designed BER (bit error rate). The SNR Margin is set by Central Office DSLAM. If the SNR Margin is increased, bit error rate performance will improve, but the data rate will decrease. Conversely, if the SNR Margin is decreased, bit error rate performance will decrease, but the data rate will increase. Line Attenuation Attenuation is the decrease in magnitude of the ADSL line signal between the transmitter (Central Office DSLAM) and the receiver (Client ADSL Modem), measured in dB. It is measured by calculating the difference in dB between the signal power level received at the Client ADSL Router and the reference signal power level transmitted from the Central Office DSLAM. 47

Cerberus P 6311-072 Data Rate This field displays the ADSL data rate.

System Log

The System Log displays data generated or acquired by routine system communication with other devices, such as the results of negotiations with the ISP's computers for DNS and gateway IP addresses. The device keeps a running log of events and activities occurring on the Router. You can click Save Log to display a Windows File Download dialog box that enables opening or saving the contents of the log to your PC. To remove all entries from the list, click Clear Log. New entries will begin accumulating. If the device is rebooted, the logs are automatically cleared.

Statistics

The ADSL Router keeps statistic of traffic that passes through it. You are able to view the amount of packets that passes through the Router on both the WAN port & the LAN port. The traffic counter will reset if the device is rebooted. You can select Ethernet/ADSL to view the statistics report of LAN/WAN.

Ethernet

The Ethernet screen gives you information on how much data your router has transmitted and received across the Ethernet connection.
Click on REFRESH to update the screen.
The ADSL screen gives you information about how much data your router has transmitted or received across the ADSL connection.
Click on REFRESH to update the screen. 49

Help Tab

Routers online help.

Troubleshooting

If the router is not function properly, first check this session for simple troubleshooting before contacting your Internet service provider (ISP) for support.
Using LEDs to Diagnose Problems
The LEDs are useful aides for finding possible problem causes.

Power LED

The PWR LED on the front panel does not light up.: 1. Make sure that the power adaptor is connected to the router and plugged in to an appropriate power source. Use only the supplied power adaptor; 2. Check that the router and the power source are both turned on and the router is receiving sufficient power; 3. Turn the router off and on; 4. If the error persists, you may have a hardware problem. In this case, you should contact your vendor.

LAN LED

The LAN LED on the front panel does not light up.: 1. Check the Ethernet cable connections between your router and the computer or hub; 2. Check for faulty Ethernet cables; 3. Make sure your computers Ethernet card is working properly; 4. If these steps fail to correct the problem, contact your local distributor for assistance.

ADSL LED

The ADSL LED on the front panel does not light up: 1. Check the telephone wire and connections between the router ADSL port and the wall jack; 2. Make sure that the telephone company has checked your phone line and set it up for ADSL service; 3. Reset your ADSL line to reinitialize your link to the DSLAM; 4. If these steps fail to correct the problem, contact your local distributor for assistance.

Problems with the Web Interface
I cannot access the web Interface: 1. Make sure you are using the correct IP address of the router. Check the IP address of the router; 2. Make sure that there is not a console session running; 3. Check that you have enabled web service access. If you have configured a secured client IP address, your computers IP address must match it. Refer to the chapter on remote management for details; 51

4. 5. 6. 7.

Cerberus P 6311-072 For WAN access, you must configure remote management to allow server access from the WAN (or all); Your computers and the routers IP addresses must be on the same subnet for LAN access; If you changed the routers LAN IP address, then enter the new one as the URL; Remove any filters in LAN or WAN that block web service.
The web Interface does not display properly: 1. Make sure you are using Internet Explorer 5.0 (or compatible) and later versions; 2. Delete the temporary web files and log in again.
Problems with the Login Username and Password
I forgot my login username and/or password: 1. The default username is admin. The default password is trendchip. The Password and Username fields are case-sensitive. Make sure that you enter the correct password and username using the proper casing; 2. Press the DEFAULT button for five seconds, and then release it. When the ADSL LED begins to blink, the defaults have been restored and the router restarts;
Problems with LAN Interface
I cannot access the router from the LAN or ping any computer on the LAN: 1. Check the Ethernet LEDs on the front panel. A LAN LED should be on for a port that has a PC connected. If it is off, check the cables between your router and the PC. Make sure you have uninstalled any software firewall for troubleshooting; 2. Make sure that the IP address and the subnet mask is consistent between the router and the workstation.
Problems with WAN Interface
Initialization of the ADSL connection failed: 1. Check the cable connections between the ADSL port and the wall jack. The ADSL LED on the front panel of the router should be on; 2. Check that your VPI, VCI, type of encapsulation and type of multiplexing settings are the same as what you collected from your telephone company and ISP; 3. Restart the router. If you still have problems, you may need to verify your VPI, VCI, type of encapsulation and type of multiplexing settings with the telephone company and ISP. I cannot get a WAN IP address from the ISP: 1. Ensure that all other devices connected to the same telephone line as your router (e.g. telephones, fax machines, analogue modems) have a line filter connected between them and the wall socket (unless your are using a Central Splitter or Central Filter installed by the qualified and licensed electrician), and ensure that all line filters are correctly installed and right way around; 2. Missing line filters or line filters installed the wrong way around can cause problems with your ADSL connection, including causing frequent disconnects.

doc1

Installation and Users Manual
PENTAGRAM Cerberus Wi-Fi Lite (P 6381-0)
The latest versions of manual, drivers and applications are available on www.pentagram.eu 2007-06-28
NOTE! Any information and technical data are subject to change without prior notification and/or indication in this manual. 2007 PENTAGRAM All rights reserved; copying and reproduction is strictly forbidden.
Cerberus Wi-Fi Lite (P6381-0)
INTRODUCTION.... 5 FEATURES.... 5 PACKAGE CONTENTS... 5 PRODUCT OVERVIEW.... 6 IMPORTANT NOTES... 6 FRONT PANEL.... 6 BACK PANEL... 7 DEFAULT SETTINGS... 7 RESETTING ROUTER... 8 CONNECTING CERBERUS TO COMPUTER.. 8 CONFIGURE TCP/IP.... 8 CONFIGURE ROUTER VIA WEB BROWSER.. 13 LOGIN.... 13 NAVIGATION... 14 SETUP WIZARD... 15 OPERATION MODE... 24 LAN INTERFACE SETUP... 25 WAN INTERFACE SETUP... 26 WIRELESS.... 28 FIREWALL.... 40 VPN SETTINGS.... 45 ADVANCED... 50 MANAGEMENT.... 53 EVENT LOG.... 62 TROUBLESHOOTING.... 63 USING LEDS TO DIAGNOSE PROBLEMS.. 63 PROBLEMS WITH THE WEB INTERFACE.. 63 PROBLEMS WITH THE LOGIN USERNAME AND PASSWORD.. 64 PROBLEMS WITH LAN INTERFACE.. 64 PROBLEMS WITH THE INTERNET ACCESS.. 64

Introduction

Thank you for choosing the Cerberus Wi-Fi Lite (P6381-0). With the Wireless-G Router, you can share one Internet connection among multiple computers and extend wireless connectivity to mobile users easily and securely. With its compact design, the Wireless-G Router is easy to set up and configure with the embedded web-based configuration screens.

Features

IEEE 802.11g and 802.11b Wireless LAN Access. Data and network security with wireless 64-bit and 128-bit WEP data encryption. Wi-Fi WPA and WPA2 wireless security. Firewall features to protect network with: IP, MAC, Port and URL filtering. NAT with Port Forwarding/Redirection and DMZ. Wireless access control by MAC addresses. WDS to extend wireless coverage. VPN IPSec & Pass-through.

Package Contents

1. 2. 3. 4. 5. 6. PENTAGRAM Cerberus Wi-Fi Lite (P6381-0) Power adapter 9 V, 0,8 A Ethernet cable (RJ-45) Telephone cable (RJ-11) CD Quick Installation Guide

Product Overview

Important Notes
Do not use the router in high humidity or high temperatures. Do not use the same power source for the router as other equipment. Do not open or repair the case yourself. If the router is too hot, turn off the power immediately and have it repaired at a qualified service center. Avoid using this product and all accessories outdoors. Place the router on a stable surface. Only use the power adapter that comes with the package. Using a different voltage rating power adaptor may damage the router.

Front Panel

LED PWR WLAN

Color Green Green

Green WAN ACT/LINK/SPEED (1-4) Yellow
Action Off Steady light Off Steady light Blinking light Off Steady light Blinking light Off Steady light Blinking light
Description No power is supplied to the device Connected to an AC power supply Access point is disabled Access point is enabled Transmitting/Receiving data The WAN port is not connected The WAN port is connected Transmitting/Receiving data No Ethernet connection Connected to an Ethernet port Transmitting/Receiving data

Back Panel

Label 1-4 (RJ-45) WAN (RJ-45) RESET PWR
Used for. Connecting to computers/devices using the Ethernet cable Connecting to a cable/DSL modem using the Ethernet cable Resetting the device. Connecting with supplied power adapter (9V 0,8A)

Default Settings

Before changing configuration familiarize yourself with these default settings. IP Address Subnet Mask SSID DHCP Server DHCP Server IP Address Pool IP Address Lease Time User Name Password 192.168.1.254 255. 255. 255.0 Wireless-G Router Enabled 100 IP addresses from 192.168.1.seconds (24 hours) root 1234
It is recommended to change default password as soon as possible. If you ever forget the password to log in, you may need to reset router to restore the factory default settings. This procedure is described on the next page.

Resetting router

Turn router on and wait about 2 minutes for router initialization. Hold the RESET button until the LEDs all turn Off, turn On and then turn Off. The router performs configuration factory reset and the router reboots. You can then access the router from the web GUI.
Connecting Cerberus to Computer.
Cerberus can be connected to computer via Ethernet or WLAN:
Connecting via Ethernet Port (Ethernet Card)
If there is an available LAN card present on your PC, you just simply connect router and PC through the Ethernet cable. Once you establish Internet connection, you could browse the Web through the Ethernet cable.

Connecting via WLAN Interface (Wireless Card)
To connect PC to Cerberus via WLAN, Wireless Adapter must be properly installed and configured and both router and PC must be in the same subnet.

Configure TCP/IP

This part will help you to configure your computer to communicate with router properly. Computer must be either equipped with network adapter connected directly to router or wireless network adapter (compatible with Wi-Fi 802.11b/g standard). Wireless network adapter must have the same session ID (ESSID) and establish connection with the network created by router. You can also connect to router via network hub/switch. Default IP address of the router is 192.168.1.254 and subnet mask is 255.255.255.0. Fastest and easiest method to configure your computer is to obtain an IP address automatically from routers DHCP server. Make sure that TCP/IP protocol and network adapter are installed on your computer.

Windows Vista

Note: Network configuration require administrator privileges. When User Account Control window pops up, either click Continue (Administrator user) or select Administrator user and enter valid password (Standard user). 1. 2. 3. Click Start Control Panel. Click View network status and tasks. Click View connection. status for appropriate
On General tab, Click the Properties button.
On General tab, select Internet Protocol Version 4 (TCP/IPv4) and click Properties.
Cerberus Wi-Fi Lite (P6381-0) 6. On General tab, select Obtain an IP address automatically and Obtain DNS server address automatically. Click OK to save settings and close Internet Protocol Version 4 (TCP/IPv4) Properties window.

Windows 2000/XP

1. Click Start Settings Control Panel. Double-click the Network Connections icon (2000/XP Classic view) or click Network and Internet Connections icon and then Network Connections icon (XP Default view). Double-click the Local Area Connection icon.
On General tab, select Internet Protocol (TCP/IP) and click Properties.
On General tab, select Obtain an IP address automatically and DNS server address automatically. Click OK to save settings and close Internet Protocol (TCP/IP) Properties window.

Windows 95/98/Me

1. Click Start Settings Control Panel. Double-click the Network icon. On Configuration tab, select TCP/IP for appropriate network adapter and click Properties.
On IP Address tab, select Obtain an IP address automatically.
On DNS Configuration tab, select Disable DNS Click OK to save settings and close TCP/IP Properties window.
To make sure that network adapter properly obtained an IP address from routers DHCP server, click Start > Run and type cmd (Win 2000/XP) or command (Win 95/98/ME). In command line type ipconfig /all and check that value of the IP Address is 192.168.1.x
Configure router via web browser

Cerberus Wi-Fi Lite (P6381-0) router can be configured via web browser, which is usually integrated with operating system. Router offers clear and simple interface.
1. 2. Launch the Web browser In address bar enter the default IP address: http://192.168.1.254
Enter username and password default root / 1234

Navigation

Buttons
Next>> Click Next>> to proceed in a series of screens. <<Back Click <<Back to return to the previous screen. You will lost all unsaved settings in the current screen. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to undo the changes. Help Click Help to display on-line help information in a pop-up screen.

Setup Wizard

You can use the Setup Wizard to configure NTP (Network Time Protocol), LAN, WAN and wireless port settings. The main Setup Wizard screen displays every time you access the Wireless-G Router. Or, click Setup Wizard in the navigation panel. Click Next>> to continue.
Setup Wizard: Operation Mode
You can setup different modes to LAN and WLAN interface for NAT and bridging function.
Gateway In this mode, the device is supposed to connect to internet via ADSL/Cable Modem. The NAT is enabled and PCs in four LAN ports share the same IP to ISP through WAN port. The connection type can be setup in WAN page by using PPPOE, DHCP client, PPTP client or static IP. Wireless ISP In this mode, all Ethernet ports are bridged together and the wireless client will connect to ISP access point. The NAT is enabled and PCs in Ethernet ports share the same IP to ISP through wireless LAN. You must set the wireless to client mode first and connect to the ISP AP in Site-Survey page. The connection type can be setup in WAN page by using PPPOE, DHCP client, PPTP client or static IP. Cancel Click Cancel to start configuring the Setup Wizard again. <<Back Click <<Back to discard the changes and go back to the previous screen. Next>> Click Next>> to continue to the next screen.
Setup Wizard: Time Zone Settings
Configure NTP (Network Time Protocol) in the first Setup Wizard screen. NTP allows the Wireless-G Router to automatically update system date and time from a time server.
Enable NTP client update Select this option to set the Wireless-G Router as an NTP client to automatically update the system date and time from a time server on the network. Then set the fields below. Clear this check box to disable this feature. In this case, logs will not show the correct system time. Time Zone Select Select the time zone of the geographical location in which the Wireless-G Router is installed. NTP Server Select a pre-defined time server. Cancel Click Cancel to start configuring the Setup Wizard again. <<Back Click <<Back to discard the changes and go back to the previous screen. Next>> Click Next>> to continue to the next screen.

Setup Wizard: LAN Interface Setup
Configure the IP address and subnet mask of the LAN interface on the Wireless-G Router in the second Setup Wizard screen.
IP Address This field displays the routers current LAN IP address, which is used to access WebGUI. To change the setting, specify a new IP address for the LAN interface. Enter the IP address in dotted decimal notation. For example, 192.168.1.254. Subnet Mask This field displays the current subnet mask. To change, enter a new subnet mask in dotted decimal notation. For example, 255.255.255.0. Cancel Click Cancel to start configuring the Setup Wizard again. <<Back Click <<Back to discard the changes and go back to the previous screen. Next>> Click Next>> to continue to the next screen.
Setup Wizard: WAN Interface Setup
Configure Internet access settings in the third Setup Wizard screen. This screen varies depending on the connection type you select. Configure the fields in this screen with the information provided by your ISP.
WAN Interface Setup: DHCP Client
If your ISP does not give you any IP address and/or user name and password information, select DHCP Client in the WAN Access Type field.
WAN Access Setup: Static IP
If your ISP provide you with a static WAN IP address without user name or password information, select Static IP in the WAN Access Setup field. Set the network information with the information provided by your ISP.
IP Address Enter the WAN IP address (in dotted decimal notation) as provided by your ISP. For example. 10.10.10.1. Subnet Mask Enter the subnet mask (in dotted decimal notation) for the WAN IP address. For example. 255.255.255.0. Default Gateway Enter the IP address of the default gateway device. DNS A DNS (Domain Name System) server keeps mappings of IP addresses and domain names. Thus you dont have to enter an IP address to access a web site/device. Enter the IP address of a DNS server in dotted decimal notation. For example, 192.168.1.10. Cancel Click Cancel to start configuring the Setup Wizard again. <<Back Click <<Back to discard the changes and go back to the previous screen. Next>> Click Next>> to continue to the next screen.
WAN Interface Setup: PPPoE
If your ISP provides you with a user name and password, then most likely you are using a PPPoE connection. Select PPPoE in the WAN Access Type field.

User Name Enter the account user name as provided by the ISP. The user name is case-sensitive. Password Enter the password associated with the user name above. The password is case-sensitive. Cancel Click Cancel to start configuring the Setup Wizard again. <<Back Click <<Back to discard the changes and go back to the previous screen. Next>> Click Next>> to continue to the next screen.
WAN Interface Setup: PPTP
PPTP is mostly available in European countries. If your ISP provides you a fixed WAN IP address, user name and password, then you are probably using PPTP connection type. Select PPTP in the WAN Access Type field.
IP Address Enter the WAN IP address (in dotted decimal notation) as provided by your ISP. For example. 10.10.10.1. Subnet Mask Enter the subnet mask (in dotted decimal notation) for the WAN IP address. For example. 255.255.255.0. Server IP Address Enter the IP address of the access server on the ISP network. User Name Enter the account user name as provided by the ISP. The user name is case-sensitive. Password Enter the password associated with the user name above. The password is case-sensitive. Cancel Click Cancel to start configuring the Setup Wizard again. <<Back Click <<Back to discard the changes and go back to the previous screen. Next>> Click Next>> to continue to the next screen.
Setup Wizard: Wireless Basic Settings
Configure basic wireless LAN and wireless security settings in the fourth Setup Wizard screen.
Band If your wireless network contains only IEEE 802.11b devices, select 802.1 B. If your wireless network contains only IEEE 802.11g devices, select 802.1 G. If your wireless network contains both IEEE 802.11b and IEEE 802.11g devices, select 802.1 B/G. Mode In addition to setting the Wireless-G Router as an AP (access point) bridging the wireless and wired networks, you can also set the Wireless-G Router to other operating modes. The Client mode allows you the use the Wireless-G Router as a wireless adapter for a computer. This allows the computer to connect to a wireless network. To wirelessly bridge two wired networks, use the WDS mode. Select AP + WDS mode to set the Wireless-G Router to wireless bridge two networks and work as an access point at the same time. Network Type This field is applicable when you select Client in the Mode field. Select Infrastructure to allow a computer to connect to a wireless network via an access point. Select Ad-hoc to allow a compute to connect to another wireless-enable computer. SSID An SSID uniquely identifies a wireless network. All devices in a wireless network must use the same SSID to communicate with each other. Enter the name of a wireless network to which the computer connects. Channel Number A channel is the operating frequency in which a wireless device transmits data. The number of channels you can select varies depending on your countrys regulation. Select a channel number the Wireless-G Router is to use for wireless communication. To reduce interference, select a channel number that is further away from what the nearest wireless device/network uses. For example, if the nearest wireless device/network is using channel 6, set the Wireless-G Router to use channel 11. Cancel Click Cancel to start configuring the Setup Wizard again. <<Back Click <<Back to discard the changes and go back to the previous screen. Finished Click Finished to save the settings. The Wireless-G Router will reboot to make the changes take effect. 23

Cerberus Wi-Fi Lite (P6381-0) Note: If you have changed the LAN IP address, you must use the new IP address to access the WebGUI again.

Testing Your Connection

You have completed the wizard screens. To test your Internet connection, open a web browser on any connected computer and enter any web site address (such as http://www.pentagram.eu).

Operation Mode

Gateway In this mode, the device is supposed to connect to internet via ADSL/Cable Modem. The NAT is enabled and PCs in four LAN ports share the same IP to ISP through WAN port. The connection type can be setup in WAN page by using PPPOE, DHCP client, PPTP client or static IP. Wireless ISP In this mode, all Ethernet ports are bridged together and the wireless client will connect to ISP access point. The NAT is enabled and PCs in Ethernet ports share the same IP to ISP through wireless LAN. You must set the wireless to client mode first and connect to the ISP AP in Site-Survey page. The connection type can be setup in WAN page by using PPPOE, DHCP client, PPTP client or static IP. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to undo the changes.

LAN Interface Setup

The LAN (Local Area Network) is the network connected to a LAN port on the Wireless-G Router. To configure LAN interface settings, click LAN Settings in the navigation panel.
IP Address This field displays the routers current LAN IP address, which is used to access WebGUI. To change the setting, specify a new IP address for the LAN interface. Enter the IP address in dotted decimal notation. For example, 192.168.1.254. Note: When you change the LAN IP address, this also changes the DHCP client pool settings in the DHCP Settings screen. If DHCP server is enabled, restart your computer or network adapter to obtain an IP address from the Wireless-G Router again. To access the WebGUI again, enter the new LAN IP address. Subnet Mask This field displays the current subnet mask. To change, enter a new subnet mask in dotted decimal notation. For example. 255.255.255.0. Default Gateway Enter the IP address of the default gateway device. 802.1d Spanning Tree IEEE 802.1d spanning tree protocol detects and eliminates network loops. A network loop may create duplicate broadcast packets that reduce network performance. Select Enabled to activate this feature. Clone MAC Address You can set the Wireless-G Router to use the same MAC address on all outgoing packets through the LAN interface. Thus the LAN network appears as a single device to the external network. This increases the security level. Enter a computers MAC address in six pairs of hexadecimal notation. For example, 00a0f45a0010. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to undo the changes. Help Click Help to display on-line help information in a pop-up screen.

WAN Interface Setup

Configure advanced WAN interface settings in the WAN Interface Setup screen. This screen varies depending on the connection type you select.
The following list describes the new fields in this screen. For other field descriptions, refer to Setup Wizard: WAN Interface Setup section of this manual. MTU Size MTU is the Maximum Transmission Unit. It specifies the largest packet size permitted for Internet transmission. Keep the default setting, 1452, to have the router select the best MTU for your Internet connection. Attain DNS Automatically A DNS (Domain Name System) server keeps mappings of IP addresses and domain names. Thus you dont have to enter an IP address to access a web site/device. If your ISP dynamically assigns DNS information, select this option to obtain DNS server IP address automatically. Set DNS Manually Select this option if you have DNS server IP address(es) provided by your ISP. DNS 1. 3 Enter the IP address of a DNS server in dotted decimal notation. For example, 192.168.1.10. Clone MAC Address Some ISPs performs authentication based on a MAC address to allow only one computer to use the Internet connection. To allow more than one computer to share an Internet connection, enter a computers MAC address to copy to the WAN interface. Enable UPnP UPnP (Universal Plug and Play) is a communication standard that allows simple peer-to-peer network connectivity between UPnP-enabled devices. With UPnP, a device can automatically join a network, obtain an IP address, convey its presence and manage other UPnP-enabled devices without additional configuration. Select this option to activate this feature. This allows you to view the Wireless-G Router information and remotely manage the Wireless-G Router through a UPnP-ready operating system (such as Windows XP). Enable IPSec Pass through on VPN Connection IPSec (Internet Protocol Security) is a standard protocol that allows a device to establish secure connections at the IP layer. Select this option to allow IPSec tunnels to pass through the Wireless-G Router. 26
Cerberus Wi-Fi Lite (P6381-0) Enable PPTP Pass through on VPN Connection PPTP (Point-to-Point Tunneling Protocol) allows you to establish VPN sessions to a Windows computer (such as Windows XP). Select this option to allow PPTP tunnel to pass through the Wireless-G Router. Enable L2TP Pass through on VPN Connection L2TP (Layer 2 Tunneling Protocol) allows you to establish a secure connection on the MAC layer. Select this option to allow L2TP tunnel to pass through the Wireless-G Router. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to undo the changes. Help Click Help to display on-line help information in a pop-up screen.
New fields on the DHCP Client connection screen:
Host Name Some ISP require a host name to get a DHCP address

Wireless: Wireless Advanced Settings
Click Wireless > Advanced Wireless Settings to display the configuration screen. The default wireless settings in this screen work in most wireless network environment.
Authentication Type IEEE 802.11b defines a basic authentication security using WEP (Wireless Equivalent Protocol) keys. Select Open System if you dont want to use a WEP key for authentication. Select Share Key to set the Wireless-G Router and the peer wireless devices to authenticate each other with a WEP key. Select Auto to allow both open or shared authentication. Note: The peer wireless device must also set to use the same authentication type. Fragmentation Threshold Specify the maximum packet size allowed before the Wireless-G Router fragments data. If there are many error packets on the network, slightly increase the threshold. Setting the threshold too low decreases network performance. Always make a small change to the default settings. RTS Threshold The Wireless-G Router will send a Request To Send (RTS) packet to a sending host. When an acknowledgement is received, the Wireless-G Router sends a Clear To Send (CTS) packets to that host to allow data transmission. RTS/CTS eliminates the hidden node problem where two hosts are within range of each other but does not know each others presence. If the number of packets is lower than the RTS threshold, this feature is not activated. If you are experiencing inconsistent data flow on the network, slightly reduce this number. Beacon Interval A beacon packet is broadcast by the Wireless-G Router to synchronize the wireless network. The beacon interval allows a wireless client in power saving mode to know when to wake up and detect if theres packet waiting to be received. Specify the time period between beacon broadcasts. Data Rate Select a transmission rate the Wireless-G Router uses to send data. Select Auto to allow the Wireless-G Router to use the maximum transmission rate possible. Note: If you specify a transmission rate here, make sure the peer wireless devices must also use the same rate for wireless communication. Wireless network coverage Select an option to set the wireless coverage range. 31
Cerberus Wi-Fi Lite (P6381-0) Preamble Type A preamble is used to synchronize transmission timing. Select Long Preamble if there is interference in your wireless network or you are not sure about the preamble settings on other wireless devices. All IEEE 802.11b devices support long preamble. Select Short Preamble if all wireless devices support this mode. Short preamble reduces transmission overhead. Broadcast SSID You can set the Wireless-G Router not to broadcast its SSID to increase wireless security. This prevents unknown wireless clients from knowing the presence of the Wireless-G Router. Select Enabled to hide the SSID. Otherwise, select Disabled. IAPP IAPP (Inter Access Point Protocol) allows the Wireless-G Router to communicate with neighboring access points for wireless roaming. Select Enabled to activate this feature; otherwise, select Disabled. 802.11g Protection Unless you encounter severe connection problem to the Wireless-G Router, do not enable this feature. When you select Enabled to activate this feature, the Wireless-G Router will try to get all IEEE 802.11b packets. However, activating this feature reduces performance. Turbo Mode Auto The Wireless-G Router will automatically detect the turbo mode client and adjust its wireless connection speed. Always The Wireless-G Router always turn on the turbo mode. Off The Wireless-G Router does not turn on the turbo mode. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to undo the changes. Help Click Help to display on-line help information in a pop-up screen.

Wireless: Security

Configure security for the wireless interface in the Wireless Security Setup screen. The Wireless-G Router supports four wireless security options: WEP, WPA, WPA2, WPA2 Mixed. These options offer different security levels for wireless communication. Note: It is recommended that you use the highest security option to protect your wireless communication. Click Wireless > Security to display the configuration screen. The applicable fields vary depending on the security option you select in the Encryption field.

Wireless: Security: WEP

WEP (Wired Equivalent Privacy) uses a key to encrypt and decrypt traffic transmitted wirelessly. WEP keeps wireless communication private. Note: Both the Wireless-G Router and the connected wireless device(s) must use the same WEP key for communication. WEP does not provide user authentication. You can enable IEEE 802.1x on the WirelessG Router to authenticate a user before wireless access is allowed. In the WebGUI, click Wireless > Security and select WEP in the Encryption field.
Encryption Select WEP to basic data encryption. Set WEP Key Click Set WEP Key to set the WEP keys. Use 802.1x Authentication Select this option to enable user authentication. Users must enter the same password (specified in the Password field) to access the wireless network. Select the length of the encryption key to protect the password transmitted. Choices are WEP 64bits and WEP 128bits. Authentication RADIUS Server Specify the RADIUS server information in the fields provided. Port Enter the authentication port number. IP Address Enter the IP address of the RADIUS server in dotted decimal notation. For example, 192.168.1.10. Password Specify the password that all users must enter before access to the wireless network is allowed. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to undo the changes. Help Click Help to display on-line help information in a pop-up screen.
Wireless: Security: WEP: Set WEP Key
Click Set WEP Key to display the configuration screen as shown.
Key Length Select the encryption key length. Choices are 64-bit and 128-bit. Select 128-bit for higher security. Key Format Specify how you want to enter the keys. Select Hex to enter hexadecimal format (that starts with 0x). Select ASCII to enter alphanumerical characters (a-z, A-Z, 09) for the keys. Default Tx Key Select the default key to encrypt data before transmitting. Encryption Key 1. 4 If you select 64-bit in the Key Length field, enter 10 hexadecimal or 5 ASCII characters. If you select 128-bit in the Key Length field, enter 26 hexadecimal or 13 ASCII characters. Note: As you enter the keys, an asterisk * displays for each character you enter. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Close Click Close to close this screen. Note: All unsaved changes will be lost. Reset Click Reset to undo the changes.

Example: Allow Wireless Access on a Computer
The following figure shows an example where the Wireless-G Router allows wireless access from a computer with the MAC address of 00:02:3f:63:78:a1. All other computers are not allowed to access the Wireless-G Router over the wireless interface.
Wireless: WDS (Wireless Distributed System) The WDS screen is applicable when you set the Wireless-G Router to operate in WDS mode in the Wireless Basic Settings screen. WDS allows the Wireless-G Router to act as a bridge to connect to other wireless routers in bridge mode. This allows two LAN networks to communicate to each other wirelessly. To participate in a WDS, wireless routers must be set to operate in bridge mode with the same channel and know each others MAC address. If applicable, they must also use the same security settings. Click Wireless > WDS to display the configuration screen as shown.
Enable WDS Select this option to activate this feature. Add WDS AP Enter the MAC address of another wireless device participating in this WDS. For example, 0023f6378a1. Comment Enter a description for this setting. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to undo the changes. 38
Cerberus Wi-Fi Lite (P6381-0) Set Security Click Set Security to display a screen to configure WDS security settings. Current WDS AP List This table displays the list of wireless APs participating in this WDS. MAC Address This field displays the MAC address of the wireless AP in this WDS. Comment This field displays the description for this setting. Select Select this option to delete the wireless AP. Delete Selected Click Delete Selected to delete the selected wireless AP(s). When you click this button, a warning screen displays. Click OK to continue. Delete All Click Delete All to remove all wireless AP(s). When you click this button, a warning screen displays. Click OK to continue. Reset Click Reset to clear the Select check box(es). Help Click Help to display on-line help information in a pop-up screen.
Wireless: WDS: Set Security

Example: Restricting Internet Access on a Computer
This following example sets the Wireless-G Router to block Internet access from the computer with an IP address of 192.168.1.120.

Firewall: Port Filtering

The Port Filtering feature allows you to restrict Internet access based on the application protocol and port number(s). You can control Internet access usage (for example, block peerto-peer applications) and increase network security. Click Firewall > Port Filtering to display the configuration screen as shown.
Enable Port Filtering Select this option to activate this feature. Port Range Specify the service port number range in the fields provided. To specify one port number, enter the same service port number in both fields. Protocol Select a protocol type for the application. Choices are UDP, TCP or Both. Comment Enter a description for this port filtering rule. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to undo the changes. Current Filter Table This table displays the current port filter settings on the Wireless-G Router. 41
Cerberus Wi-Fi Lite (P6381-0) MAC Address This field displays the MAC address of the computer to which this MAC filter applies. Comment This field displays the description for this port filter. Select Select this option to delete the port filter. Delete Selected Click Delete Selected to delete the selected port filter(s). When you click this button, a Selected warning screen displays. Click OK to continue. Delete All Click Delete All to remove all port filter(s). When you click this button, a warning screen displays. Click OK to continue. Reset Click Reset to clear the Select check box(es). Help Click Help to display on-line help information in a pop-up screen.
Example: Blocking FTP File Transfer
The following example sets the Wireless-G Router to block users from using FTP (File Transfer Protocol) to transfer files over the Internet.

Firewall: MAC Filtering

Use the MAC Filtering screen to limit Internet access on computers behind the Wireless-G Router. This is useful to restrict Internet access usage and providing network security. Click Firewall > MAC Filtering to display the configuration screen as shown.
Enable MAC Filtering Select this option to activate this feature. 42
Cerberus Wi-Fi Lite (P6381-0) MAC Address Enter the MAC address of a computer on which you want to restrict access. For example, 0023f6378a1. Comment Enter a description for this MAC filtering rule. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to undo the changes. Current Filter Table This table displays the current MAC filter settings on the Wireless-G Router. MAC Address This field displays the MAC address of the computer to which this MAC filter applies. Comment This field displays the description for this MAC filter. Select Select this option to delete the MAC filter. Delete Selected Click Delete Selected to delete the selected MAC filter(s). When you click this button, a warning screen displays. Click OK to continue. Delete All Click Delete All to remove all MAC filter(s). When you click this button, a warning screen displays. Click OK to continue. Reset Click Reset to clear the Select check box(es). Help Click Help to display on-line help information in a pop-up screen.

Key Management

IKE Select this option to set the Wireless-G Router to automatically generate the encryption keys for the VPN tunnel. Clear this option to manually set the authentication and encryption keys. Advanced This button is applicable when you select IKE. Click Advanced to configure IKE authentication and encryption settings. Connection Type Select Initiator to set the Wireless-G Router is to initiate a VPN connection to the remote VPN gateway. Select Responder to set the Wireless-G Router to allow VPN connection from a remote location. Connect This button is applicable when you select Responder in the Connection Type field. Click Connect to establish a VPN connection to the remote location. Disconnect This button is applicable when you select Initiator in the Connection Type field and the connection is up. Click Disconnect to terminate the VPN connection. ESP Set the fields below to configure ESP (Encapsulating Security Payload) settings. (Encryption Algorithm) Specify the encryption algorithm for this VPN rule. Choices are 3DES and AES128 (faster). Select NULL to set up phase 2 tunnel (for key exchange) without encryption. (Authentication Algorithm) Specify the encryption algorithm for this VPN rule. Choices are MD5 and SHA1 (more secure). PreShared Key This field displays when you select IKE. Enter the pre-shared key for IKE authentication. The key length varies depending on the authentication algorithm. For MD5, enter 16 characters for the key. For SHA1, enter 20 characters for the key. Remote RSA Key This field displays when you select IKE. Enter the public RSA key of the remote VPN gateway to authenticate with a certificate. Status This field displays whether this VPN tunnel is up (Connected) or not (Disconnected). Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Reset Click Reset to clear the settings in the fields. Refresh Click Refresh to update this screen. 47
Cerberus Wi-Fi Lite (P6381-0) Back Click Back to return to the main VPN setup screen. Help Click Help to display on-line help information in a pop-up screen.

Enable Log Select this option to activate system logging. System all Select this option to record all log types. Wireless Select this option to record wireless related logs. Enable Remote Log Select this option to record and store logs to a remote syslog server. Log Server Address When you select Enable Remote Log, specify the IP address of the remote syslog server. Enter the IP address in dotted decimal notation. For example, 192. 168.1.100. Apply Changes Click Apply Changes to save the changes. The Wireless-G Router will reboot to make the changes take effect. Refresh Click Refresh to update this screen. Clear Click Clear to delete all log entries. Help Click Help to display on-line help information in a pop-up screen.

Troubleshooting

If the router is not function properly, first check this session for simple troubleshooting before contacting your Internet service provider (ISP) for support.
Using LEDs to Diagnose Problems
The LEDs are useful aides for finding possible problem causes.

Power LED

The POWER LED on the front panel does not light up.: 1. Make sure that the power adaptor is connected to the router and plugged in to an appropriate power source. Use only the supplied power adaptor; 2. Check that the router and the power source are both turned on and the router is receiving sufficient power; 3. Turn the router off and on; 4. If the error persists, you may have a hardware problem. In this case, you should contact your vendor.

LAN LED

The LAN LED on the front panel does not light up: 1. Check the Ethernet cable connections between your router and the computer or hub; 2. Check for faulty Ethernet cables; 3. Make sure your computers Ethernet card is working properly; 4. If these steps fail to correct the problem, contact your local distributor for assistance.

WAN LED

The WAN LED on the front panel does not light up: 1. Check the Ethernet cable connections between your router and ISPs access device; 2. Check that the ISPs access device is turned on and receiving sufficient power;
Problems with the Web Interface
I cannot access the web Interface: 1. Make sure you are using the correct IP address of the router. Check the IP address of the router; 2. Your computers and the routers IP addresses must be on the same subnet for LAN access; 3. If you changed the routers LAN IP address, then enter the new one as the URL; 4. Remove any filters in LAN or WAN that block web service.
Problems with the Login Username and Password
I forgot my login username and/or password: 1. The default username is root. The default password is 1234. The Password and Username fields are case-sensitive. Make sure that you enter the correct password and username using the proper casing; 2. Press the RESET button for 10-12 seconds, and then release it - the defaults have been restored and the router restarts;

 

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