Kortex KX User manual

Kx ADSL Router
User’s Manual

Kx ADSL Router
ii
Table of Content
CHAPTER 1.................................................................................................1
INTRODUCTION ...................................................................................................................................1
1.1 An Overview of Kx ADSL Router......................................................................................................1
1.2 Package Contents.................................................................................................................................2
1.3 Kx ADSL Router Features...................................................................................................................2
1.4 Kx ADSL Router Application .............................................................................................................3
CHAPTER 2.................................................................................................4
USING KX ADSL ROUTER..................................................................................................................4
2.1 Cautions for using Kx ADSL Router...................................................................................................4
2.2 The front LEDs....................................................................................................................................4
2.3 The rear ports.......................................................................................................................................5
2.4 Cabling.................................................................................................................................................5
CHAPTER 3.................................................................................................6
CONFIGURATION.................................................................................................................................6
3.1 Factory Default settings.......................................................................................................................6
3.2 Information from ISP...........................................................................................................................6
3.3 Configuring with GUI Program...........................................................................................................7
3.4 Configuring with Terminal or Telnet Program..................................................................................13
3.5 Changing Password ...........................................................................................................................15
CHAPTER 4...............................................................................................17
PPP OVER ETHERNET (PPPOE)..................................................................................................17
4.1 What is PPPoE...................................................................................................................................17
4.2 How can I know I am using PPPoE?.................................................................................................17
4.3 Checking PPPoE Connections...........................................................................................................17
CHAPTER 5...............................................................................................19
TROUBLESHOOTING..........................................................................................................................19
Factory Reset...........................................................................................................................................19
“I can't find Kx ADSL Router using the GUI Setup Software” ..............................................................19
IP address conflict....................................................................................................................................20
My Internet application won't work.........................................................................................................20
Can not access the Internet......................................................................................................................22
Diagnosis.................................................................................................................................................23
APPENDIX A............................................................................................26
TERMINAL COMMANDS ....................................................................................................................26
passwd .....................................................................................................................................................26
show.........................................................................................................................................................27
set.............................................................................................................................................................27
vserv.........................................................................................................................................................28
release......................................................................................................................................................29

Chapter 1 Introduction
iii
renew .......................................................................................................................................................29
user...........................................................................................................................................................29
ping..........................................................................................................................................................30
session......................................................................................................................................................30
filter .........................................................................................................................................................31
APPENDIX B............................................................................................33
SPECIFICATION .................................................................................................................................33
APPENDIX C............................................................................................34
SUPPORTED INTERNET APPLICATIONS ............................................................................................34

Chapter 1
Introduction
1.1 An Overview of Kx ADSL Router
The Kortex Kx ADSL Router functions as an IEEE 802.3 Ethernet-based broadband IP sharing router. It
provides one 10/100 Dual Speed Ethernet port for connection to a home or small office network and one
10Mb Ethernet port for a DSL Modem, Cable Modem, or other Broadband access device.
Kx ADSL Router provides the safety and security of ports blocking and a natural firewall as well as
integrated NAT support that allows up to 32 users to share a single Internet Connection. Static address
support, integrated client/server DHCP, and device name support will allow Kx ADSL Router to connect
to nearly any Broadband provider, and at the same time simplify local area network settings.
The product has one local 10/100 Dual Speed Ethernet port and one 10Mb Ethernet global port. The
local port can be connected directly to a single computer to provide added security from hackers and
others on the Internet or it can be connected to an Ethernet or Fast Ethernet hub or switch to provide
Internet Sharing and Firewall protection to a local area network. The global port can be connected to any
Cable, DSL, or Broadband modem with an Ethernet port.
Kx ADSL Router provides two levels of security support. First, it masks local users’ IP addresses from
others on the Internet making it much more difficult for a hacker to target a machine on your network.
Secondly it can block and redirect certain ports to limit the services that outside users can access. The
user, to ensure that games and other Internet applications will run properly, can open specific ports.
Unlike proxy server or NAT software that requires the software server to remain visible on the Internet,
no local computers are directly externally visible when using Kx ADSL Router. Also Kx ADSL Router,
like broadband, is always on, removing the need to constantly boot a software server when access is
desired from a client. No client software is required to connect to Kx ADSL Router so it will support any
operating system that can connect to a network whether PC or Apple based. Telnet and Terminal setup
are operating system independent. However, the Configuration Program of Kx ADSL Router must run
on Microsoft Windows (95, 98, NT, 2000 or ME).
Integrated DHCP services allow up to 128 users to get their IP address automatically on boot up from this
Kx ADSL Router. Client machines require no software, simply set them to accept a dynamically
assigned IP address and reboot. Each time they are powered up Kx ADSL Router will recognize them
and set their IP address to instantly connect them to the LAN.
For advanced users Virtual Service support allows Kx ADSL Router to provide limited visibility to local
machines and their services as dictated by the user. An ISP provided IP address can be set to Kx ADSL
Router and then specific services can be rerouted to specific computers on the local network. For instance,
a dedicated web server can be connected to the Internet via Kx ADSL Router and then incoming requests
for HTML that are received by the product can be rerouted to the original server, even though the server
now has a different IP address. In this example, Kx ADSL Router is on the Internet and vulnerable to
attacks, but the server is protected.

Kx ADSL Router
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Virtual Service can also be used to re-task services to multiple servers. For instance, Kx ADSL Router
can be set to allow separate FTP, Web, and Multiplayer game servers to share the same Internet-visible IP
address while still protecting the servers and local users from hackers.
1.2 Package Contents
1. Kx ADSL Router
2. Installation CD
3. Quick Start Guide
4. CAT 5 cross-over cable
5. RS232 console cable
6. Power adapter
1.3 Kx ADSL Router Features
The Kx ADSL Router provides the following features
• All the PCs in a LAN can share a connection of an xDSL/Cable modem using one ISP account.
• Supports PPPoE.
• Supports VPN. (PPTP pass through).
• Explicit LED indication for Internet connection.
• Supports Internet applications such as Web, ICQ, FTP, Telnet, E-Mail, News, NetMeeting,
PCAnyWhere, mIRC, CuSeeMe, AoE, etc.
• Natural firewall keeps hackers out.
• DHCP server allocates up to 128 client IP addresses.
• DHCP client gets global IP address automatically.
• 10/100Mbps dual speed auto-sensing for flexible network connectivity.
• Virtual server.
• Rich packet filters.
• Static routing.
• Supports Proxy-DNS.
• Easy to setup by Windows GUI program and Telnet through network, or HyperTerminal through
Console.
• Flash memory for firmware upgrade

Chapter 1 Introduction
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1.4 Kx ADSL Router Application

Chapter 2
Using Kx ADSL Router
2.1 Cautions for using Kx ADSL Router
Do not place Kx ADSL Router high humidity and high temperature.
Do not use the same power source for Kx ADSL Router with other equipment.
Do not open or repair the case yourself. If the Kx ADSL Router is too hot, turn off the power
immediately and have a qualified serviceman repair it.
Place the Kx ADSL Router on the stable surface.
Only use the power adapter that comes with the package.
2.2 The front LEDs
LED Meaning
1 Power Lit when AC power is connected.
2 LAN/
ACT Lit when connected to a LAN device.
Flashes when sending/receiving data.
3 LAN
100/10 Lit when connected at 100 Mbps.
Off when connected at 10 Mbps.
4 LAN
full/half Lit indicates full-duplex mode.
Off indicates half-duplex mode.
5 WAN/
ACT Lit when connected to an xDSL/cable modem.
Flashes when sending/receiving data.
6 Internet Lit when the Internet connection is established.
7 Error Lit when a component malfunction is detected.
1 2 3 4 5 6 7

Chapter 2 Using the Broadband IP Router
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2.3 The rear ports
Power
(jack) Connect the supplied power adapter to this jack
RS-232
(port) Connect the supplied RS-232 cable to this port when
connecting to a PC’s RS-232 port (9-pin serial port).
Global
(RJ-45
connector)
Connect an UTP Ethernet cable or crossover cable to
this port when connecting to the Internet or making
other WAN connections.
Local
(RJ-45
connector)
Connect an cross-over Ethernet cable to this port when
connecting to a LAN such as an office or home
network.
2.4 Cabling
The most common problem associated with Ethernet is bad cabling. Make sure that all connected devices are
turned on. On the top of Kx ADSL Router is a bank of LEDs, as a first check verifies that the LAN Link and
WAN Link LEDs are lit and green. If they are not, verify that you are using the proper cables.
Kx ADSL Router’s ports are wired just like a Network Adapter’s port. From the product directly to a PC, the
cable should be an Ethernet crossover cable. From the product to a hub or switch, the cable should be an
Ethernet straight through cable to a normal hub/switch port, or an Ethernet crossover cable to an uplink port.
For the product to a cable/DSL modem, it is most common to use a crossover, and it is recommended that you
use the same cable as supplied by your modem maker.

Chapter 3
Configuration
Kx ADSL Router can be configured by a GUI program, Terminal program, or Telnet program. The GUI
program must be started under Windows 95, 98, NT, 2000 or ME; however, the Terminal or Telnet program can
be started in any OS, including UNIX, Linux, Mac OS, Windows 95/98/NT/2000/Me, etc.
3.1 Factory Default settings
3.1.1 Password
The default setting for password has been left blank in the factory. Press Enter then you are logged in for the
first time. It is recommended that you set a password for security and management purpose.
If you ever forget the password to log in, you can only reset to the factory setting. Refer to the
Factory Reset section in Chapter 6 Troubleshooting for details.
3.1.2 Local and Global Port Addresses
The LAN parameters of Kx ADSL Router are pre-set in the factory. The default values are shown below.
Local Port Global Port
IP address 192.168.1.254
Subnet Mask 255.255.255.0
DHCP server function Enabled
IP addresses for
distribution to PCs 128 IP addresses continuing from
192.168.1.1through 192.168.1.128
DHCP client function is enabled to
automatically get the Global port
configuration from ISP.
3.2 Information from ISP
You can skip this section if your ISP (Internet Service Provider) can dynamically provide the IP addresses.
Otherwise, you have to gather the information as illustrated in the following table.
IP address
ISP-assigning IP address Ex. 203.66.81.201
Subnet mask Ex. 255.255.255.0
Gateway Ex. 203.66.81.254
DNS server #1 Ex. 203.66.81.251
DNS server #2 Ex. 203.66.81.252

Chapter 3 Configuration
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3.3 Configuring with GUI Program
3.3.1 Installing and running the GUI program
Your system must meet the following requirements to run the GUI program.
1. Windows 95, 98, NT, 2000 or ME.
2. IE4.01 or above well installed.
To install the GUI program, you can just insert the Installation CD into the CD-ROM drive. The installation
program will start automatically. Follow the instructions on the screen to complete the installation.
When the setup program is installed, go to Start Æ
ÆÆ
ÆPrograms Æ
ÆÆ
ÆKortex Kx ADSL Router Æ
ÆÆ
Æ
Configuration Program.
When the opening screen appears, click Find to list all the recognized IP routers.

Kx ADSL Router
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Select the IP router that you want to configure and click Configure.
The configuration dialog boxes are categorized into several tabs as described in the following sections.
3.3.2 Management
Firmware Version: Read-only.
Allow Management from Internet: Check if you want to manage your Kx ADSL Router from Internet.
Change Administrator Password: In this dialog box, you can also change administrator’s password.
Maximum: 6 alphanumeric characters long. Case sensitive.

Chapter 3 Configuration
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3.3.3 Local Port
This screen contains settings for LAN interface attached to the local port.
IP Address
Default: 192.168.1.254
Subnet Mask
Default: 255.255.255.0
~
~~
~Do not distribute IP address to local computers1
Checking this radio button to disable this Kx ADSL Router to distribute IP Addresses.
~
~~
~Distribute IP addresses to local computers
Checking this radio button to enable this Kx ADSL Router to distribute IP Addresses. And the
following field will be activated for you to enter the starting IP Address:
Start IP Address
The starting address of this local IP network address pool. The pool is a piece of continous IP address
segment.
Number of IP Address
Default: 253
1If you check this selection, remember you have to specify a static IP address for each of your local computers.

Kx ADSL Router
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3.3.4 Global Port
This screen contains settings for the Global interface toward Internet.
Obtain global port configuration automatically: If it is checked, the Global port IP address is obtained
through DHCP protocol on device boots up. The address might be varied each time.
PPPoE: If it is checked, the Kx ADSL Router is using PPPoE function.
Adapter Address: It is necessary for some ISP to identify this Kx ADSL Router by its MAC address.
IP Config: If you choose Dynamic, the Global port IP address is obtained through DHCP protocol on device
boots up. If you choose Static, check this item if your ISP provides you a fixed IP address.
IP address: Provided by your ISP.
SubNetmask2: Provided by our ISP.
DNS server: These values will be automatically provided once you click “Obtain global port
configuration automatically”. You can change the values if necessary.
2If you checked PPPoE in Management tab (see the Management section), “Obtain global port configuration automatically” and “Set static
global port configuration” are grayed to deny change.

Chapter 3 Configuration
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3.3.5 Virtual Server
Being a natural Internet firewall, this Kx ADSL Router protects your network from being accessed by
outside users. When it needs to allow outside users to access internal servers, e.g. web server, ftp server, e-
mail server or news server, this product can act as a virtual server to public services. You can set up a local
server and specific port number that stand for the service, e.g. web (80), FTP (21), Telnet (23). When Kx
ADSL Router receives incoming access request to specified port, it will be forwarded to the corresponding
internal server.
DMZ Host: For selecting this item, you should type the IP address that your ISP provides.
Add Server: You can select By Name or By Port Number.
By Name: You can choose the sever name to add this function.
By Port Number: For selecting between a specified port and a range of ports which you want the Internet
users to be able to access. The valid port number ranges from 0 to 65535.
Browse: If DHCP function is enabled, then the distributed IP addresses will be listed for you to browse and
select.
Port Type: TCP or UDP.

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3.3.6 Packet Filters
In the Packet Filters screen, you can block specified internal users from Internet access, or you can disable
specific Internet services. You can set up the filters through the following three filter types. Each filter type
can be set to filter (drop) or forward action. There are six sets of filter totally. The relationship among all
filters is "OR" operation, which means as long as one of the conditions is satisfied, the specified action will
be taken.
Network Adapter Address Filter:
Scope for network adapter addresses of local computers. No address range setting is allowed.
IP Address Filter:
Allows IP address range setting.
Local IP: scope for IP address of local computers.
Remote IP: scope for IP address of remote servers.

Chapter 3 Configuration
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TCP/UDP Port Filter
TCP port: scope for the connection-based application service on remote server using the port number.
UDP port: scope for the connectionless application service on remote server using the port number.
When you finished the settings, the selected filters will be shown on the Filter List. If there is any you don’t
want to filter, Click Delete to do so.
Click Save to save the settings.
3.4 Configuring with Terminal or Telnet Program
You can use terminal emulation on your PC/workstation for the initial and future configuration of your Kx
ADSL Router. Windows HyperTerminal or other terminal emulation applications can be used.
If you prefer, a telnet session can be opened directly. Telnet provides the same type of terminal emulation. For
security purposes, Kx ADSL Router uses port 333 for telnet. All of the following configuration menus are
identical in a telnet session, with the exception that any saved changes that result in the product rebooting will
require you to open a new telnet session to reestablish a connection with the Kx ADSL Router.
3.4.1 How to start HyperTerminal
1. Connect an RS-232 cable from one Serial COM port on your PC to your Kx ADSL Router’s Serial
Console port.
2. Go to
Start ÆProgram ÆAccessories ÆCommunications ÆHyperTerminal.
3. When the Hyper Terminal window appears, double-click Hypertrm.
4. Name the new connection appropriately.
5. In the
Connect To dialog box, select the COM port that connects to your Kx ADSL Router.

Kx ADSL Router
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6. Press
OK, you should see the following screen.
7. set the
Bits per second rate at 38400, and Flow control at None. Click OK to complete the setting.
8. Power up the Kx ADSL Router.

Chapter 3 Configuration
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3.4.2 How to start Telnet
1. Go to
Start ÆRun.
2. Type “telnet 192.168.1.254” and press Enter. If the local port of Kx ADSL Router is set to something
other than the factory default (“192.168.1.254”), enter that one.
3.4.3 Starting Configured
Once the connection is made successfully either via HyperTerminal or Telnet, the following information will
appear:
Dual Ethernet IP Share for Cable/xDSL Modem, version 4.00
Administrator password:
No password is required the first time you log in. Press <ENTER> to enter
Configure mode. The screen prompts you for the following command.
command>
Type? for help batch command.
Refer to the APPENDIX A “Terminal Commands” for a detailed description of terminal commands.
3.5 Changing Password
Kx ADSL Router has no password for standard user access in default. It is recommended that you change the
default passwords to ensure that someone cannot adjust your settings without your knowledge at the first time
you setup this device.

Kx ADSL Router
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For GUI
1.Start this Kx ADSL Router by running setup.exe as described in the chapter titled “Configuration”.
2.Check “Change Administrator’s Password.
3.Enter the desired new Password, and confirm it in the following field.
For Terminal
Refer to the previous section titled “Configuration in Terminal Program” for terminal emulation. You
should see the following prompts, do as instructed in italics. Please note that passwords are case
sensitive, so be sure that you remember whether a letter is in upper or lower case and make sure that
your Caps Lock is off:
command>passwd
Please type old password : **** Type old password and press <Enter>
type new password (0 to 6 characters) : ****** Type the new password and press <Enter>
re-type new password (0 to 6 characters) : ****** Re-type the new password and press
<Enter>
Forget your password?
Refer to the Factory Reset section in Chapter 6 Troubleshooting for details.

Chapter 4
PPP Over ETHERNET (PPPoE)
4.1 What is PPPoE
PPPoE is known as a dial-up DSL service. It is designed to integrate the broadband services into the
current widely deployed, easy-to-use, low-cost dial access networking infrastructure. Thus, customer can
get greater access speed without changing the operation concept.
PPPoE functions supported by Kx ADSL Router
Single Account Sharing:
One single account can be shared for multiple users.
Automatically connected to the Internet:
Just launch any Internet program intuitively, the unit will login and get on-line automatically.
Automatically disconnected from the Internet:
Kx ADSL Router will get-off line automatically when idle.
4.2 How can I know I am using PPPoE?
PPPoE client software provided by our ISP should be installed onto your computer first. Run the program to
connect/disconnect to the Internet each time before/after you surf.
A user account is also required each time you go for the Internet access.
4.3 Checking PPPoE Connections
4.3.1 For GUI Setup program
1. Go to
Start ÆPrograms ÆIP Share Setup.
2. When the configure screen appears, select the Global Port tab. Refer to the previous section titled
“Configuration in GUI”.
3. Check if the value of Global port IP address is 0.0.0.0, if yes, it means that the PPPoE connection failed. Or
if the value is non-zero, then the PPPoE connection is good.