Pentagram Cerberus Wi-Fi Lite User manual

2007-06-28
Installation and User’s Manual
PENTAGRAM Cerberus
Wi-Fi Lite
(P 6381-0)
The latest versions of manual, drivers and applications are available on
www.pentagram.eu

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.

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INDEX
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

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

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

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Back Panel
Label Used for...
1-4 (RJ-45) Connecting to computers/devices using the Ethernet cable
WAN (RJ-45) Connecting to a cable/DSL modem using the Ethernet cable
RESET Resetting the device.
PWR Connecting with supplied power adapter (9V 0,8A)
Default Settings
Before changing configuration familiarize yourself with these default settings.
IP Address 192.168.1.254
Subnet Mask 255. 255. 255.0
SSID Wireless-G Router
DHCP Server Enabled
DHCP Server IP Address Pool 100 IP addresses
from 192.168.1.100
IP Address Lease Time 86400 seconds (24 hours)
User Name root
Password 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.

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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 router’s DHCP
server.
Make sure that TCP/IP protocol and network adapter are installed on your computer.

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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. Click Start →Control Panel.
2. Click View network status and tasks.
3. Click View status for appropriate
connection.
4. On General tab, Click the Properties
button.
5. On General tab, select Internet Protocol
Version 4 (TCP/IPv4) and click
Properties.

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6. On General tab, select Obtain an IP
address automatically and Obtain DNS
server address automatically.
7. Click OK to save settings and close
Internet Protocol Version 4 (TCP/IPv4)
Properties window.

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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).
2. Double-click the Local Area Connection icon.
3. On General tab, Click the Properties button.
4. On General tab, select Internet Protocol
(TCP/IP) and click Properties.
5. On General tab, select Obtain an IP address
automatically and DNS server address
automatically.
6. Click OK to save settings and close Internet
Protocol (TCP/IP) Properties window.

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Windows 95/98/Me
1. Click Start →Settings →Control Panel.
Double-click the Network icon.
2. On Configuration tab, select TCP/IP for
appropriate network adapter and click
Properties.
3. On IP Address tab, select Obtain an IP
address automatically.
4. On DNS Configuration tab, select Disable
DNS
5. Click OK to save settings and close TCP/IP
Properties window.
To make sure that network adapter properly obtained an IP address from router’s 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

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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.
Login
1. Launch the Web browser
2. In address bar enter the default IP address: http://192.168.1.254
3. Enter username and password – default root / 1234

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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.

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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.

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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.

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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.

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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 router’s 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.

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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.

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•
••
•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 don’t 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.