Asus INET-810 User manual

P/N: 9560860000
ISDNLINK™
INET-810
INET-820
INET-830
INET-850
ISDN Router
User’s Guide

FCC Statement
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.
(2) This device must accept any interference received, including interfer-
ence that may cause undesired operation.
CE Marking Warning
This is a Class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.
Copyright ©1999 Jan. All Rights Reserved.
Document Version: 1.0
All trademarks and trade names are the properties of their respective owners.

ii

i
TABLE OF CONTENTS
CHAPTER 1 ABOUT YOUR INTERNET ROUTER........................................... 1
Internet Router Features................................................................................. 2
Requirements................................................................................................... 6
Package Contents............................................................................................. 6
Internet Router INET-810 and INET-830 ...................................................... 6
Internet Router INET-820............................................................................... 8
Internet Router INET-850............................................................................... 9
LED Indicators...............................................................................................10
Rear Panel Connectors & Switches................................................................12
DIP Switches...................................................................................................13
CHAPTER 2 SETUP: INTERNET ACCESS........................................................15
Overview.........................................................................................................15
Hardware Installation ....................................................................................15
Internet Router Configuration.......................................................................16
Basic Setup Screen..........................................................................................20
PC Configuration............................................................................................23
Operation –Internet Access...........................................................................24
CHAPTER 3 PRINTER SHARING......................................................................25
Overview.........................................................................................................25
Software Installation.......................................................................................25
PC Configuration............................................................................................26
CHAPTER 4 ADVANCED SETUP.......................................................................31
Advanced Setup Screen..................................................................................31
CHAPTER 5 ANALOG PORTS ...........................................................................33
Overview.........................................................................................................33
Data.................................................................................................................33
CHAPTER 6 DHCP...............................................................................................35
Overview.........................................................................................................35
DHCP Server Screen......................................................................................35

ii
CHAPTER 7 ISDN.................................................................................................37
Overview.........................................................................................................37
Data.................................................................................................................38
CHAPTER 8 ROUTING .......................................................................................39
Overview.........................................................................................................39
Internet Router Configuration.......................................................................39
Router Configuration .....................................................................................41
Routing Example............................................................................................42
CHAPTER 9 SERIAL PORT................................................................................45
Overview.........................................................................................................45
Serial Port Configuration...............................................................................46
Advanced Port Settings..................................................................................48
Advanced Port Settings..................................................................................49
Script File.......................................................................................................50
CompuServe Script.........................................................................................52
Operation........................................................................................................53
CHAPTER 10 STATUS & MONITORING .........................................................55
Overview.........................................................................................................55
Status Screen ..................................................................................................55
DHCP Status...................................................................................................56
ISDN Status ....................................................................................................57
Port Status/Test Screen..................................................................................59

iii
APPENDIX A TROUBLESHOOTING.................................................................64
Overview.........................................................................................................64
ISDN Line.......................................................................................................64
Internet Access................................................................................................65
Printer Sharing...............................................................................................66
APPENDIX B AT COMMANDS...........................................................................70
Required Settings............................................................................................70
Finding the current Initial String...................................................................70
AT Commands................................................................................................72
APPENDIX C WINDOWS PEER-TO-PEER.......................................................76
Overview.........................................................................................................76
Procedure........................................................................................................76
APPENDIX D SPECIFICATIONS........................................................................80
Internet Router INET-810..............................................................................77
Internet Router INET-820..............................................................................81
Internet Router INET-830........................................................................... 810
Internet Router INET-850..............................................................................83

iv
This page was deliberately left blank.

1
Chapter 1
About your Internet
Router
This Chapter provides an overview of the Internet Router's fea-
tures and capabilities.
ongratulations on the purchase of your new Internet Router. The Internet
Router allows multiple SOHO (Small Office Home Office) users to share a single
Internet user account over an ISDN phone link. It provides the cost-effective
solution of giving users of your network easy access to the vast resources available
on the Internet.
Figure 1: Office to Internet
All of the Internet Router models include a built-in 4 port 10BaseT hub, allowing
you to easily create a peer-to-peer network.
Internet Router INET-830 and INET-850 include two (2) analog a/b ports, allowing
you to connect the analog a/b (POTS) telephone, answering machine, or fax.
For added versatility, the Internet Router INET-830 and INET-850 include a
printer port, allowing LAN users to share the attached printer.
1
C

Internet Router User Guide
2
Internet Router Features
The Internet Router incorporates many advanced features, carefully designed to
provided sophisticated functions while being easy to use.
LAN Features
ØBuilt-in Hub. The built-in 4-port hub saves the cost and additional wiring of
a separate hub.
ØHassle-free LAN Installation. Just plug it in, whether or not you wish to
use the built-in hub.
ØDHCP Server Support. Dynamic Host Configuration Protocol provides a
dynamic IP address to PCs and other devices upon request. The Internet
Router can act as a DHCP Server.
ØMulti Segment LAN Support. If you have a Router, PCs on other LAN
segments can use the Internet Router to access the Internet and, on INET-830
and INET-850, share the printer.
Internet Access Features
ØShared Internet Account. All users on the LAN can share the same Internet
Account.
ØAdditional Bandwidth via Serial Port. If the ISDN link is insufficient, you
can connect a modem or ISDN TA to the serial port to provide increased
bandwidth.
ØDial-On-Demand & Auto-Disconnect. A connection is established to the
Internet as required, and automatically disconnected when no longer needed.
This reduces on-line charges to the minimum possible level.
ØPPP Authentication. This is used to validate the log-on to your Internet
Service Provider.

About your Internet Router
3
ISDN Features
ØEasy Configuration. No complex technical data or unintelligible prompts.
You’ll be finished in minutes!
ØIntelligent B Channel Utilization. Internet access will automatically switch
between 1 or 2 B channels, depending on the data traffic volume.
ØOutgoing call ID. The Internet Router supports Outgoing call ID for both
MSN (Multiple Subscriber Numbering) and SAD (Sub Address).
ØAnalog Ports. Two (2) analog a/b ports are provided, to allow connection of
your existing analog telephone, answering machine, or fax. (for INET-820
and INET-850)
ØAnalog Call Priority. If both B channels are in use, one channel will be
disconnected when an incoming voice call is detected, or you wish to make an
outgoing voice call. (for INET-820 and INET-850)
Printer Sharing Features (for INET-830 and INET-850)
ØLAN Printer Sharing. Users on the LAN can share the printer attached to
the Internet Router. All they need to do is install and configure the supplied
software on their PC.
ØEasy installation & configuration. The "Internet Router Printer Port"
software required for printer sharing installs quickly and requires minimal
configuration.
Configuration & Management
ØEasy Setup. Use your WEB browser from anywhere on the LAN for configu-
ration.
ØRemote Management. The Internet Router can be managed, if required,
from a workstation anywhere on the LAN, using a WEB browser.

Internet Router User Guide
4
ØRemote Monitoring. Internet access via the ISDN link, or serial port usage,
can be monitored from any workstation on the LAN.
Printer status can be checked using the standard Windows printer features.
Security Features
ØConfiguration Data. Optional password protection is provided to prevent
unauthorized users from modifying the configuration.
ØFirewall Protection. All incoming data packets are monitored and all
incoming server requests are filtered, thus protecting your network from mali-
cious attacks from external sources.

About your Internet Router
5
Firewall Protection
The firewall protection provided by the Internet Router is an intrinsic side effect
of IP sharing. All users on the LAN share a single external IP address. From
the external viewpoint, there is no network, only a single device.
For internal users, the Internet Router acts as a “transparent proxy server”,
translating the multiple internal IP addresses into a single external IP address.
For external requests, any attempt to connect to local resources are blocked. The
Internet Router will not “reverse translate”from a global IP address to a local IP
address.
This type of “natural”firewall provides an impregnable barrier against malicious
attacks.

Internet Router User Guide
6
Requirements
<PCs with Ethernet Network cards and 10BaseT connectors
<10BaseT network cable(s), with RJ45 connectors. One of these cables can be
used to connect the ISDN phone line.
<Software drivers for the network cards installed on each PC.
<ISDN phone line, fitted with a NT-1 (Network Termination 1) termination and
RJ45 sockets for S/T connection.
<Internet Access account with a local ISP (Internet Service Provider).
<For Printer Sharing, PCs must be running one of the following operating
systems:
=Windows 95 or 98
=Windows NT 3.51, NT4.0
Package Contents
The following items should be included:
<The Internet Router Unit.
<Power Adapter.
<ISDN RJ-45 connection cable (5M).
<One (1) 1.44M floppy disk (or CD diskette), containing the printer port redi-
rector software.
<This User’s Manual.
If any of the above items are damaged or missing, please contact your dealer as
soon as possible.

About your Internet Router
7
Internet Router INET-810 and INET-830
EAB C D
PWRERR LNK SD RD CDCOL LK B1B2T1T2
LAN WAN TELISDN
Figure 2: INET-810 and INET-830
Figure 3: Rear Panel INET-810 and INET-830

Internet Router User Guide
8
Internet Router INET-820
EAB C D
PWRERR LNK SD RD CDCOL LK B1B2T1T2
LAN WAN TELISDN
Figure 4: INET-820
2
3
4
RearPanel
POWER UPLINK WAN
6
7
5
1 2 3
4
1
ISDN TEL1TEL2
8 9
ON/OFF
1 2
ON
345
Figure 5: Rear Panel INET-820

About your Internet Router
9
Internet Router INET-850
EAB C D
PWRERR LNK SD RD CDCOL LK B1B2T1T2
LAN WAN TELISDN
Printer Port
Figure 6: INET-850
2
3
4
RearPanel
POWER UPLINK WAN
6
7
5
1 2 3
4
1
ISDN TEL1TEL2
8 9
ON/OFF
1 2
ON
345
Figure 7: Rear Panel INET-850

Internet Router User Guide
10
LED Indicators
APower Lights when power is ON.
BLAN ERR –Indicates an error, but normally lights up briefly
during power On. See the following table for more infor-
mation.
LNK –Traffic is being transmitted or received on the
LAN.
This LED also works in conjunction with the ERR LED to
indicate errors. See the following table for more informa-
tion.
COL –Packet collision. Collisions are normal; only if this
light is on most of the time is there a problem.
CWAN SD –Flashes when data is sent through the serial (WAN)
port.
RD –Flashes when data is received through the serial
(WAN) port.
CD –Carrier Detect. This is ON when the WAN (serial
port) connection is active.
DISDN LK –ON while the ISDN connection is being used.
B1 –Flash while the 1st B channel is in use.
B2 –Flash while the 2nd B channel is in use.
E TEL T1 –ON while analog port 1 is in use.
T2 –ON while analog port 2 is in use.
All 12 LEDs will light briefly on power on. This is normal.

About your Internet Router
11
Link/Error LEDs
Operation of the Link and Error LEDs is as follows:
Link Error Description
On On During power On, both LEDs should light, then the
error LED should go off.
If both LEDs stay on, there is a hardware problem.
On Off Idle
Flashing Off Normal Operation –transmitting or receiving data
via the LAN.
Rapid intermittent
flashing of each LED Hardware error, as detailed below.
Error Conditions (G = Green, R = Red)
G-R (repeated) RAM error
G-G-R-R (twice, repeated) Flash RAM error
G-G-G-R-R-R (3 times, repeated) Timer error
G-G-G-G-R-R-R–R
(4 times, repeated) Serial port error
G-G-G-G-G-R-R-R-R-R
(5 times, repeated) LAN port error
G-G-G-G-G-G-R-R-R-R-R-R
(6 times, repeated) ISDN link error

Internet Router User Guide
12
Rear Panel Connectors & Switches
1Power switch Electrical switch. IN is ON.
2Power port Connect the power adapter here. Use only the unit
provided.
3Hub LEDs 10BaseT port indicators –flash when the hub port
is in use.
410BaseT ports Connect 10BaseT cabling here, and the other end
to the PC.
510BaseT
uplink port If using both the built-in hub and another hub, use
this port to connect to the other hub.
When this port is in use, port 4 can NOT be used.
6WAN port Serial port. If using an external modem, connect it
here. See Chapter 9 –Serial Port for further
information.
7DIP switches See the following section.
8ISDN port Use a cable with RJ45 connectors to link this port
to the S/T interface on the NT-1.
9Analog tele-
phone ports If using analog devices, connect them here. See
Chapter 8 –Analog Ports for configuration
details.

About your Internet Router
13
DIP Switches
Settings Description
SW1 SW2 SW3 SW4 SW5
Off Off Normal operation
Off On Disable DHCP server2
On Off Restore defaults3
On On
Reserved1 Reserved1 Reserved1
Reserved
1Do not change the default values unless advised to do so by technical support staff.
2This will override the setting on the DHCP Server screen.
3Restores the default IP address (192.168.0.1), and clears the password, provided
the following procedure is carried out.
If you merely leave the DIP switches is this position, the Internet Router will
function normally.
Restore Default IP Address
and Clear Password
If the Internet Router's IP Address or password is lost, the following procedure can
be used to recover from this situation.
1. Turn the power to the Internet Router OFF.
2. Set DIP switch 1 ON, and DIP switch 2 OFF.
3. Turn the power to the Internet Router ON.
4. Operate DIP switch 1 in the following sequence (you have 15 seconds to
complete the sequence):
=OFF, ON, OFF
5. The Internet Router will now reset, and the Red LED will flash. The following
changes will have been made. (Other configuration data is unchanged.)
=IP Address set to its default value of 192.168.0.1
=Network Mask set to 255.255.255.0
=The password cleared (no password).