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Cerberus Wi-Fi Lite (P6381-0)

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.:

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;

Check that the router and the power source are both turned on and the router is receiving
sufficient power;

Turn the router off and on;

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:

Check the Ethernet cable connections between your router and the computer or hub;

Check for faulty Ethernet cables;

Make sure your computer’s Ethernet card is working properly;

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:

Check the Ethernet cable connections between your router and ISP’s access device;

Check that the ISP’s access device is turned on and receiving sufficient power;

Problems with the Web Interface

I cannot access the web Interface:

Make sure you are using the correct IP address of the router. Check the IP address of the
router;

Your computer’s and the router’s IP addresses must be on the same subnet for LAN
access;

If you changed the router’s LAN IP address, then enter the new one as the URL;

Remove any filters in LAN or WAN that block web service.

Содержание Cerberus Wi-Fi Lite

Страница 1: ...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 ...

Страница 2: ...OTE 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 ...

Страница 3: ...P 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 PROBLE...

Страница 4: ......

Страница 5: ...onfiguration 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 thro...

Страница 6: ...e 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 conn...

Страница 7: ...uration 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 ...

Страница 8: ...ace 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 8...

Страница 9: ...ither 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 ...

Страница 10: ...Fi Lite P6381 0 10 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 ...

Страница 11: ...con 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 ...

Страница 12: ... 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 ...

Страница 13: ... 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 ...

Страница 14: ...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 ...

Страница 15: ...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 ...

Страница 16: ...t 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 c...

Страница 17: ...ly 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 Setu...

Страница 18: ...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 ...

Страница 19: ...izard 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 ...

Страница 20: ...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 ...

Страница 21: ...ccess 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 ...

Страница 22: ...0 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 Can...

Страница 23: ...en 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 ...

Страница 24: ... 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...

Страница 25: ...his 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 activa...

Страница 26: ... 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 computer s MAC address to copy to the WAN interface Enable UPnP UPnP Universal Plug a...

Страница 27: ...on screen Host Name Some ISP require a host name to get a DHCP address New fields on the PPPoE connection screen Service Name A PPPoE service name is either an ISP name or a class of service that is configured on the PPPoE server Connection Type There are three connection types continuous connect on demand and manual Continuous the connection to the ISP is always connected Connect On Demand the co...

Страница 28: ...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 Note If you set the Wireless G Router in WDS modes make sure you activate the spanning tree protocol to avoid network loops Network Type This field is applicable when you select Client in the Mode field Select Infrastr...

Страница 29: ...es the security level Enter a computer s MAC address in six pairs of hexadecimal notation For example 00a0f45a0010 Enable Universal Repeater Mode When you enable this universal repeater function the Wireless G Router will extend the wireless distance to connect another wireless router or AP SSID of Extended Interface Input the Parent SSID when you select the Universal Repeater Mode Apply Changes C...

Страница 30: ...dress of a connected wireless client Tx Packet This field displays the number of packets transmitted to this wireless device Rx Packet This field displays the number of packets received from this wireless device Tx Rate Mbps This field displays the transmission rate to this wireless device Power Saving The power saving feature allows a computer to stop transmitting through the wireless adapter dur...

Страница 31: ... 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 other s presence If the number of packets is lower than the RTS threshold this ...

Страница 32: ...ireless 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 t...

Страница 33: ...ess 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 ...

Страница 34: ...ntication 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 num...

Страница 35: ... Z 0 9 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 Change...

Страница 36: ...IUS server All wireless devices in the same wireless network must use the same pre shared key WPA WPA2 Cipher Suite Specify an encryption method to use Select TKIP Temporal Key Integrity Protocol that uses a stronger encryption algorithm and protects against hackers with MIC Message Integrity Check Select AES Advanced Encryption System that uses symmetric 128 bit block data encryption Pre Shared K...

Страница 37: ...Router MAC Address Enter the MAC address of a computer on which you want to restrict wireless access For example 0023f6378a1 Comment Enter a description for this access control 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 Access Control List This table displays the current ...

Страница 38: ...nnect 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 other s 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 op...

Страница 39: ...ou must set the same encryption method and key in the same WDS Encryption Select the encryption method in this field WEP 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 0 9 for the keys WEP Key If you select 64 bit in the Key Length field enter 10 hexadecimal or 5 ASCII characters I...

Страница 40: ...ick 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 IP filter settings on the Wireless G Router Local IP Address This field displays the IP address of the computer to which this IP filter applies Comment This field displays the description for this IP filte...

Страница 41: ...ewall 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 po...

Страница 42: ...ton 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...

Страница 43: ...e 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 s...

Страница 44: ...ct Reset Click Reset to undo the changes Current Filter Table This table displays the current MAC filter settings on the Wireless G Router URL Address This field displays the address of the web site to which this filter applies 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 dis...

Страница 45: ...Setup screen Click VPN Settings VPN Setup to display the configuration screen Enable IPSec VPN Select this option to activate this feature Enable NAT Traversal Select this option to set up VPN connection over NAT enabled devices Generate RSA Key Click Generate RSA Key to set the Wireless G Router to automatically create a new RSA key for VPN communication Show RSA Public Key Click Show RSA Public ...

Страница 46: ...el select an entry in the Current VPN Connection Table list and click Edit Enable Tunnel 1 Select this option to activate this VPN rule Connection Name Enter a descriptive name for identification purposes Auth Type Specify an authentication type Choices are PSK Pre Shared Key and RSA an authentication method that requires a digital certificate Local Site Select whether to allow one local host or a...

Страница 47: ...yption 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...

Страница 48: ...ion Negotiation Mode For negotiation the Wireless G Router uses Main mode that also encrypts the ID type and content you specify in the VPN Setup Edit screen for maximum security Encryption Algorithm Specify the encryption algorithm for this VPN rule Choices are 3DES and AES128 faster Authentication Algorithm Specify the encryption algorithm for this VPN rule Choices are MD5 and SHA1 more secure K...

Страница 49: ...sulate the entire IP packet to transmit it securely Perfect Forward Secrecy PFS Select ON to activate this feature This sets the Wireless G Router and the remote VPN gateway to use different keys every time Same keys are not used twice Enable this feature for maximum security Select NONE to disable this feature for faster SA setup in exchange for less data security OK Click OK to save the settings...

Страница 50: ...mment Enter a description for this application 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 Port Forwarding Table This table displays the current port forwarding settings on the Wireless G Router Local IP Address This field displays the IP address of the computer to which to for...

Страница 51: ...cations such as video conferencing over the Internet on a LAN computer The DMZ function exposes just the one computer to the Internet without compromising the security for other LAN computers Click Advanced DMZ to display the configuration screen as shown Enable DMZ Select this option to activate this feature DMZ Host IP Address Enter the IP address of the computer you want to expose to the Intern...

Страница 52: ... to display the configuration screen Enable DDNS Select this option to activate this feature Service Provider Select the DDNS service provider with which you have set up an account Domain Name Enter the domain name or URL assigned to you by the DDNS service provider User Name Email Enter the account user name or the email address that you use to sign up for the service Password Key Enter the passw...

Страница 53: ...ter uses SSID This field displays the unique name for the wireless network Channel Number This field displays the operating frequency the Wireless G Router uses Encryption This field displays whether data encryption is activated for the wireless interface BSSID This field displays the ID or MAC address of the wireless interface Associated Clients This field displays the number of wireless computer...

Страница 54: ...P address from the DHCP server the Wireless G Router and make sure there is no other DHCP server s on the same network Click Management DHCP Settings to display the configuration screen Enable DHCP Server Select this option set the Wireless G Router to act as a DHCP server providing IP address es to connected computers Click this option to disable this feature You must then set up a DHCP server on...

Страница 55: ...ime To manually change the system time change the corresponding fields Time Zone Select Select the time zone of the geographical location in which the Wireless G Router is installed 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 specify a time server below Clear this c...

Страница 56: ...tive If you leave this field blank login authentication will be disabled That means you don t need to enter a user name and password to log into the WebGUI for management This is NOT recommended New Password Enter the new password The password can be between 1 and 30 alphanumerical characters Note The password is case sensitive Confirm Password Enter the new password again for confirmation Apply C...

Страница 57: ... the product web site 2 In the WebGUI click Management Firmware Upgrade to display the screen as shown 3 Specify the location and name of the firmware in the Select File field or click Browse to locate it 4 Click Upload to start the firmware upgrade process Note Do NOT turn off during the firmware upgrade process Doing so may render your device useless 5 After the firmware upgrade process is succe...

Страница 58: ...t the Wireless G Router to make the changes take effect Enable Web Server Access on WAN If you want to control the Wireless G Router across the internet you must enable this feature check the box Enable Ping Access on WAN If you don t want the Wireless G Router to response the ping packet from WAN you must disable this feature uncheck the box Management Save Restore Settings Use the Save Restore S...

Страница 59: ...at it is fully operable for your network Follow the steps below to back up a copy of the device configuration 1 In the WebGUI click Management Save Restore Settings 2 Click Save 3 A File Download screen displays as shown Click Save 4 A Save as screen displays Specify the location and name for the file Click Save to start the configuration backup process 5 After the configuration backup process is ...

Страница 60: ...te it 3 A Choose file screen displays Select a backup configuration file and click Open 4 Click Upload to start the file transfer process 5 After the process is successful the screen displays as shown Click OK 6 The Wireless G Router automatically restarts to make the changes take effect Wait until the reboot process is finished before accessing the device again Save Restore Settings Reset Resetti...

Страница 61: ...ower source Follow the steps below to restart the Wireless G Router through the WebGUI 1 Click Management System Restart to display the screen as shown 2 Click Apply Changes Note Restarting the device erases all unsaved changes 3 The screen displays as shown Click OK 4 Wait until the Wireless G Router finishes restarting before accessing it again ...

Страница 62: ...s 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 ma...

Страница 63: ... 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 computer s 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 Et...

Страница 64: ... 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 the Internet Access I cannot access the Internet 1 Make sure the router is turned on and connected to the network 2 If the WAN LED is off refer to Section WAN LED of thi...

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