TRENDnet TW100-S4W1CA User manual

F/W Version 5.0
TW100-S4W1CA
Broad Band IP Gateway
+ 4-port Fast Ethernet Switch
User’s Guide

FCC Certifications
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by
turning the equipmentoff and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
?? Reorient or relocate the receiving antenna.
?? Increase the separation between the equipment and receiver.
?? Connect the equipment into an outlet ona circuit different from that to which the receiver
is connected.
?? Consult the dealer or an experienced radio/TV technician for help.
Shielded interface cables must be used in order to comply with emission limits.
You are cautioned that changes or modifications not expressly approved by the party
responsible for compliance could void your authority to operate the equipment.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) This device must
accept any interference received, including interference that may cause undesired operation.
CE Mark Warning
This is a Class B product. In a domestic environment, this product may cause radio
interference, in which case the user may be required to take adequate measures.
All trademarks and brand names are the property of their respective proprietors.
Specifications are subject to change without prior notification.

Table of Content
INTRODUCTION....................................................................................................................................1
SAMPLE APPLICATION.....................................................................................................................2
FEATURES.............................................................................................................................................2
PARTS NAMES AND FUNCTIONS.......................................................................................................3
SYSTEM REQUIREMENTS...................................................................................................................5
SET UP INTERFACE..............................................................................................................................5
SYSTEM REQUIREMENTS..................................................................................................................5
FACTORY DEFAULT SETTINGS .......................................................................................................6
PASSWORD............................................................................................................................................6
LOCAL AND GLOBAL PORT ADDRESSES..........................................................................................6
INFORMATION FROM ISP...................................................................................................................6
CONFIGURATION VIA WEB..............................................................................................................8
GLOBAL PORT......................................................................................................................................8
CATV dynamic Mode.....................................................................................................................9
DSL dynamic Mode......................................................................................................................10
Static Mode...................................................................................................................................11
LOCAL PORT ......................................................................................................................................12
MANAGEMENT..................................................................................................................................13
VIRTUAL SERVER..............................................................................................................................15
PACKET FILTERS...............................................................................................................................16
STATIC ROUTER...............................................................................................................................18
WAN IP STATUS...............................................................................................................................18
CHECKING E-MAIL............................................................................................................................20
FACTORY RESET ...............................................................................................................................20
CONFIGURATION VIA GUI...............................................................................................................21
How to start...................................................................................................................................21
Management.................................................................................................................................22
Local Port......................................................................................................................................22
Global Port...................................................................................................................................24
Virtual Server...............................................................................................................................26
Packet Filters...............................................................................................................................28
Advance.........................................................................................................................................30
CONFIGURATION VIA TERMINAL COMMANDS......................................................................31
How to start Telnet......................................................................................................................31
Starting the Configuration........................................................................................................31

TERMINAL COMMAND.....................................................................................................................33
SESSION................................................................................................................................................33
SHOW...................................................................................................................................................34
USER.....................................................................................................................................................35
PASSWD...............................................................................................................................................35
PING.....................................................................................................................................................36
TRACERT ............................................................................................................................................36
SET.......................................................................................................................................................37
CONNECT ............................................................................................................................................38
DISCONNECT ......................................................................................................................................39
STATUS................................................................................................................................................39
UPGRADE............................................................................................................................................40
FIRMWARE UPGRADE......................................................................................................................41
ONE-STEP UPGRADE........................................................................................................................41
MANUAL UPGRADE..........................................................................................................................41
CHANGING PASSWORD..................................................................................................................43
FROM GUI...........................................................................................................................................43
FROM WEB.........................................................................................................................................43
FROM TERMINAL..............................................................................................................................44
FORGOT YOUR PASSWORD?.............................................................................................................44
FAQ.........................................................................................................................................................45
WHAT IS DMZ?.................................................................................................................................45
WHAT IS PPPOE (PPP OVER ETHERNET )?...................................................................................45
How can I know I am using PPPoE?........................................................................................45
Checking PPPoE Connections.................................................................................................45
1.For GUI Setup program...........................................................................................................45
2. Checking PPPoE status through Terminal Mode.............................................................45
FACTORY RESET ...............................................................................................................................46
IP ADDRESS CONFLICT......................................................................................................................47
CAN NOT ACCESS THE INTERNET..................................................................................................47
DIAGNOSIS..........................................................................................................................................49
TCP/IP Network Diagnosis........................................................................................................49
ISP Connectivity Checkup.........................................................................................................51
Internet Connectivity Checkup.................................................................................................52
GETTING TECHNICAL SUPPORT ....................................................................................................52
APPENDIX A SPECIFICATIONS .....................................................................................................53
APPENDIX B SUPPORTED INTERNET APPLICATIONS .........................................................54

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Introduction
The BroadBand IP Gateway + Fast EtherSwitch is an integrated Internet IP sharing device with
a built-in 4-port 10/100Mbps N-Way Fast Ethernet switch. It is the perfect solution to connect
a small group of PCs to a high-speed broadband Internet connection. Multiple users can have
high-speed Internet access simultaneously via one single IP address (Internet account) of the
Cable/xDSL modem.
This product also serves as an Internet firewall, protecting your network from being accessed
by outside users. All incoming data packets are monitored and filtered. It can also be
configured to block internal users from accessing to the Internet.
This device comes with an easy-to-setup program which ease you all the effort of setting up
and upgrading.
Thanks to both DHCP client and DHCP server, which complete the network configuration
automatically. The built-in 4-port Fast Ethernet Switch lets users plug the network cable into
the device without buying additionalHub/Switch. With the functions of the IP Share, you can
enjoy the true Plug & Play installation.
Auto-start PPPoE connection before it checks email when the PPPoE connection was not
previously established.
In addition, the unit is equipped with an Incoming Mail Indicator, which will lit green when
there is e-mail waiting to be retrieve at the mail server, indications vary as ready-for-retrieved
mail(s) increase.

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Sample Application
Figure 1: Small Office/ Home Office Setup
Features
?? For Internet connection.

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?? Supports VPN (PPTP pass thru).
?? Supports PPPoE.
?? Supports Internet applications such as Web, ICQ, FTP, Telnet, E-Mail, News,
NetMeeting, Net2Phone, PCAnyWhere, mIRC , CuSeeMe, AoE…etc.
?? Natural firewall keeps hackers out.
?? DHCP server allocates up to 253 client IP addresses.
?? DHCP client to get global IP address automatically.
?? 4 ports 10/100Mbps N-Way Fast Ethernet Switch
?? Virtual server.
?? Rich packet filters.
?? Static routing supported.
?? Support Proxy-DNS.
?? Easy setup by Web Browser, Windows GUI program and Telnet through network.
?? Flash memory for firmware upgrade.
?? Incoming email flashing indication.
?? Limit management through GUI or Web.
?? DMZ host supported.
?? Supports static IP and DNS for PPPoE.
?? Multiple PPPoE accounts.
?? Auto-reconnect for PPPoE.
?? WINS information distribution.
?? WAN IP status list.
?? Blocks WAN request.
?? One-step firmware upload utility.
Parts Names and Functions
LED Indicators on the Front Panel Ports on the Rear Panel

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1
2
3
4
5
6
7
5V DC Internet 1 2 3 4 MDIX
MDI
MDIX
MDI
Local
a
b
c
d
e
Figure 2: LED Indicators and Ports
LED Color Status
Indicator Solid Flashing
?Power
/Error
Green
/Red
Turns solid green when power is
applied to this device. Turns
solid red whenthe device is not
working properly.
N/A.
?Internet
Orange
(10M)
Green
(100M)
Connected and linked to a
Cable/xDSL Modem. Glows
orange with 10Mbps Internet
connection; green with
100Mbps.1
Receiving/
Sending data
?Local 1
?Local 2
Turns green when connecting to
a 100Mbps Fast Ethernet
connection.
?Local 3
?Local 4
Green
/Orange
Turns orange when connecting
to a 10Mbps Ethernet
connection.
Receiving/
Sending data
?Have Mail Green Flashing frequency (F) vs. Email amount (N)
F=1when N < 5
F = 2 when 5 ?N < 10
F = 3 when 10 ?N < 20
F = 4 for the rest of conditions.
Table 1: LED Indicators
Port/button Functions
1The Internet LED indicator will glow only orange if the model you purchased is with 10M WAN port.

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a5V DC Connects the power adapter plug.
bInternet Connects to a Cable/xDSL modem.
cMDIX\MDI Press this button to select Internet port wiring scheme (MDIX or MDI).
dLocal (1-4) Four RJ-45 dual-speed (10/100Mbps) auto-sensing ports for
connecting with either 10Mbps or 100Mbps Ethernet connections.
eMDIX\MDI Press this button to select Local 4th port wiring scheme (MDIX or
MDI).
Table 2: Connections Ports
System Requirements
See the following table of system requirements for setting up and managing this product.
System Set Up Interface System Requirements
PC GUI 1. Windows 95, 98, ME, NT
or 2000.
2. Netscape 4.0 or above; or
IE 4.01 or above installed
Web (HTTP)PC, Unix, or Macintosh
Telnet

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Factory Default Settings
Password
Default setting: left blank.
Setting up password: When using Telnet or Web (HTTP) to configure the device, press Enter
to login the configuration for the first time. It is recommended that you set a password for
security and management purpose.
Password forgotten? If you forgot the password, you can reset the device to factory setting.
Refer to the section titled “Factory Reset” for details.
Local and Global Port Addresses
The LAN parameters of the product 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
DHCP client function is
enabled to automatically
get the Global port
configuration from ISP.
IP addresses for
distribution to PCs
253 IP addresses continuing from192.168.1.1 to
192.168.1.253
Table 3: Local and Global Port Addresses
Information from ISP
Before you start configuring this device, you should gather the information as illustrated in
the following tables and keep it for reference.
For CATV dynamic mode:
Adapter Address Some Internet Service Providers (ISP) requires that you
register the MAC address of your network card/adapter, which
was connected to your cable or DSL modem during
installation. If your ISPs require MAC address registration,
find your adapter’s MAC address by doing the following:
Under Windows 98: Click Start?Run, type in “winipcfg”.
Under Windows ME or 2000, Click Start?Run, type in
“command”, and press Enter. At the DOS prompt, type

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“ipconfig/all”. The “Physical Address” with 12 digits is your
adapter’s MAC address.
Device/Computer
Name (or Host Name
by some ISP.)
Enter a descriptive name for identification purpose. You may
have to check with your ISP to see if your Broad Band Internet
service has been configured with a host and domain name. In
most cases, these fields may be left blank. Some Internet
Service Providers (ISP) requires this information and if that is
the case, they will provide you with the name.
Domain Name ex. yourcompany.com,
Provided by your ISP.
Table 4Device information
For DSL dynamic mode:
PPPoE Account Info Provided by your ISP
Username Provided by your ISP.
Password Provided by your ISP.
Service Name For identification purpose. If it is required, your ISP will provide
you with the information.
Static IP Address Provided by your ISP.
Static DNS Server Provided by your ISP.
Table 5PPPoE information
For Static Mode:
IP address
ISP-assigned 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
Table 6: ISP Assigned Addresses

-8-
Configuration via Web
Assuming the workstation’s TCP/IP is set to obtain IP automatically and the IP Sharing
Device’s Local Port is set to “Distribute IP” (default), and all the cables are connected
correctly. Open the browser, enter the local port IP address (default at 192.168.1.254) of the IP
Sharing Device, and click “Go” to get the login page.
No user name is required for the first time login. The default password is left blank. If you
have set a password, enter that and click OKto continue.
At the setup home page, the left navigation pane where bookmarks are provided links you
directly to the desired setup page. You can select Global Port, Local Port, Management,
Virtual Server, Packet Filter, Static Router, WAN IP Status, Checking E-Mail, Factory
Reset.
Click on the desired setup item to expand the page in the main navigation pane. The setup
pages covered in this utility are described below.
Global Port
The opening screen contains settings for the Global (Internet connection) interface. Click on
the down arrow?to select the desired Internet connection mode on the list.

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Obtain configuration automatically (CATV dynamic mode): For users who are using Cable
Modem Internet service.
PPPoE (DSL dynamic mode): For users who are using xDSL Internet service that runs PPPoE.
If your xDSL service uses PPPoE, please remove any previously installed PPPoE software and
then install the IP Sharing device.
Static configuration: Select this item when the ISP assigns static IP address for your account.
CATV dynamic Mode
Adapter Address: This field is grayed out. The Adapter Address is a specific set of numbers
that identifies the network device; normally you don’t need to change it. In case there is a
need to modify your MAC address, check ?Modify and enter the new MAC address
accordingly.
Device/Computer Name: Enter a descriptive name for identification purpose. Some Internet
Service Providers (ISP) requires this information and if that is the case, they will provide you
with the name.
Domain Name: For example: yourcompany.com.The maximum input for this field is 32
alphanumeric characters and it is case insensitive.
Note: Your ISP may ask you to input a certain domain name. Domain name is also required
for internal network’s email and news functions.
IP Config: Select Dynamic or Static. If Static configuration is selected, enter the information of
IP Address andSubnet Mask provided by your ISP.
Gateway: Enter the information provided by your ISP.
DNS Server: Select Dynamic or Static. Enter the information of Primary and Secondary DNS
Server provided by your ISP when Static configuration is selected.

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DSL dynamic Mode
Device Information
Adapter Address: This field is grayed out. The Adapter Address is a specific set of numbers
that identifies the network device; normally you don’t need to change it. In case there is a
need to modify your MAC address, check ?Modify and enter the new MAC address
accordingly.
Device/Computer Name: Enter a descriptive name for identification purpose. Some Internet
Service Providers (ISP) requires this information and if that is the case, they will provide you
with the name.
Domain Name: For example: yourcompany.com.The maximum input for this field is 32
alphanumeric characters and it is case insensitive.
PPPoE Account Active Profile ?1 ?2 ?3
You can set three PPPoE accounts, while only one which you selected is active each time you
enable PPPoE.
Username:
• Maximum input is 52 alphanumeric characters (case sensitive).
Password:
• Maximum input is 36 alphanumeric characters (case sensitive).

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Service Name: For identification purpose. If it is required, your ISP will provide you with the
information.
Static IP Address: Enter the information provided by your ISP.
Static DNS Server: Enter the information provided by your ISP.
Auto-disconnect if idle for ?minutes: Configure this device to auto-disconnect when there
is no activity on the line for a predetermined period of time.
?? Default: 5 minutes. You can input any number from 0 to 65535.
?? To keep the line always connected, set the number to 0.
?Auto-reconnect : Check to enable auto-reconnected. This function is helpful particularly
when you are logged off for problems caused at your ISP side.
Static Mode
Adapter Address: This field is grayed out. The Adapter Address is a specific set of numbers
that identifies the network device; normally you don’t need to change it. In case there is a
need to modify your MAC address, check ?Modify and enter the new MAC address
accordingly.
Device/Computer Name: Enter a descriptive name for identification purpose. Some Internet
Service Providers (ISP) requires this information and if that is the case, they will provide you
with the name.
Domain Name: For example: yourcompany.com.The maximum input for this field is 32
alphanumeric characters and it is case insensitive.
IP Config ?Dynamic ?Static This line was grayed out. For static configuration, it was
preset, so no dynamic IP address is allowed.
IP Address: Enterthe information provided by your ISP.

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Subnet Mask: Enterthe information provided by your ISP.
Gateway: Enterthe information provided by your ISP.
DNS Server ?Dynamic ?Static This line was grayed out. For static configuration, the value
was preset, so no dynamic DNS Server is allowed.
Primary/Secondary: Enterthe information provided by your ISP.
SAVE: After completing the settings on this page, click “SAVE” to save the settings.
RESET: Click “RESET” to clear all the settings on this page.
Local Port
This screen contains settings for LAN interface attached to the local network.
Private Network
IP Address
?? Default: 192.168.1.254
SubNetmask
?? Default: 255.255.255.0
DHCP Server
?Do not distribute IP address to local computers2
2If you check this selection, remember you have to specify static IP address for all your local computers.

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Checking this radio button to disable this IP Sharing device to distribute IP Addresses (DHCP
Server disabled).
?Distribute IP addresses to local computers
Checking this radio button to enable this IP Sharing device to distribute IP Addresses (DHCP
enabled). And the following field will be activated for you to enter the starting IP Address:
Starts IP address :
The starting address of this local IP network address pool. The pool is a piece of continous IP
address segment. Keep the default value 192.168.1.1 should work for most cases.
Number of IP address:
?? Maximum: 253. Default value 253 should work for most cases.
Note: If “Continuous IP address poll starts” is set at 192.168.1.1 and the “Number of IP
address in pool” is 253, the device will distribute IP addresses from 192.168.1.1 to
192.168.1.253 to all the computers in the network that request IP addresses from DHCP
server (IP Sharing Device).
WINS server: Enter the IP Address Windows domain name server.
SAVE: After completing the settings on this page, click “SAVE” to save the settings.
RESET: Click “RESET” to clear all the settings on this page.
Management
In this management page, you can
1. Change Administrator’s password

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2. Limit Management: Enables two stations to manage this IP Share through Web
configuration. Enter the MAC addresses for the stations you select for management.
After the setup is completed, only the assigned stations with password authentication
can manage this device.
3. Block WAN Request: Blocks requests from Internet to the local network.
If this item is checked, the function of management through Web configuration or Telnet
will be automatically disabled, in other words, Internet requests and the Telnet/HTTP
managements, namely ICMP, IDENT, Telnet, and HTTP will be rejected at the same time.
4. Management Via Internet: Allows management of this device via HTTP and Telnet from
Internet.
Below are coordinate results of Block WAN Request and Telnet/HTTP management for this
device. Refer to this table for further Internet/system management.
V: Checked
X: Unchecked
Block WAN
Request Management Via Internet Coordiante Result
VX
(automatically) WAN requests over TCP 113 (IDENT) and ICMP are rejected.
No Telnet, HTTP managements are allowed.
XVWAN requests over TCP 113 (IDENT) and ICMP
are accepted.
Telnet, HTTP managements are allowed.
XXWAN requests over TCP 113 (IDENT) and ICMP
are accepted.
No Telnet, HTTP managements are allowed.
SAVE: After completing the settings on this page, click “SAVE” to save the settings.
RESET: Click “RESET” to clear all the settings on this page.

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Virtual Server
In this page, you can set up a local server with specific port number which stands for the
service (e.g. web(80), FTP(21), Telnet(23)). When this device receives an incoming access
request for this specific port, it will be forwarded to the corresponding internal server. You can
add virtual servers by either port numbers or by names.
Maximum 12 Server entries are allowed and each port number can only be assigned to one IP
address.
Method ?By Name ?By Port You can select to set up a virtual server either by name or
by port.
Application (Port): Select from the most popular server applications for Virtual Server. Click ?
to scroll down for more selections.
Port Type: please select the port type (TCP or UDP) for the port number that was entered
above.
Single/Range: For selecting between a specific 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.
Local Server IP Address: Enter the Local Server’s IP address (for the specified port entered
above).
ADD: Each time you finished setting, click the Add button and the added servers will appear
on the Server List..
RESET: Click “RESET” to clear all the settings on this page.

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Server List: Display all the virtual servers.
DELETE ALL: Click to delete all the servers on the list.
DELETE: Click to delete the selected server.
DMZ Host Function: If the DMZ Host Function is enabled, it means that you set up DMZ
host at a particular computer to be exposed to the Internet so that some applications/software,
especially Internet / online game can have two-way connections.
DMZ Host IP Address: Enter the computer’s IP Address for DMZ Host.
RESET: Click “RESET” to clear all the settings on this page.
SAVE: After completing the settings on this page, click “SAVE” to save the settings.
Packet Filters
In the Packet Filters setup screen, you can block specific internal users from accessing the
Internet and you can also disable specific Internet services. You can set up the filters through