Planet RT-101 User manual

Smart IP Router
RT-101
Single Port Internet Router
EMRT101

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FCC Statement:
This device complies with the limits for a Class A digital
device, pursuant to 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 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 by PLANET Technology Corp.1997. All Rights
Reserved.
Document Version: 1.0
All trademarks and trade names are the properties of their
respective owners.

TABLE OF CONTENTS
1 INTRODUCTION........................................................5
How the RT-101 Works.........................................6
Package Contents.................................................8
Features Overview................................................8
RT-101 Outlook................................................8
DIP Switches..................................................10
LEDs ..............................................................10
Pre-Installation Checklist ................................10
Requirements.................................................11
2 CONFIGURATION...................................................13
Device Configuration..........................................14
Basic Configuration Menu...............................15
[Modem Settings] ............................................18
[Network Settings]...........................................20
3 LAN INSTALLATION...............................................25
4 OPERATION............................................................27
A TROUBLESHOOTING ............................................29
B AT COMMAND SET................................................33
Basic AT Command Set .....................................33
Extended “AT&”Command Set.........................36
C SPECIFICATIONS..............................................37

1 INTRODUCTION
Thank you for purchasing PLANET RT-101—Single port
IP Router. The RT-101 is designed to provide SOHO
(Small Office Home Office) users an efficient and affordable
Internet access solution. This sophisticated, yet easy to use
device features IP spoofing, Dial-On-Demand, and PPP
authentication. The RT-101 allows you to expand network
functionality while minimizing system resource costs.
Set up has never been easier. Simply connect the RT-101
directly to your PC’s serial port via the packaged
configuration serial cable and configure using any DEC
VT100 compatible terminal program.
Once configured, the PLANET RT-101 provides hassle free
installation. It can be placed anywhere in your 10Base-2 or
10Base-T Ethernet LAN environment and its unique
interface auto-sensing feature means there are no
troublesome jumpers or software configurations required.

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How the RT-101 Works
The RT-101 gives users across your network access to the
vast resources available on the Internet. Once the RT-101 is
installed and configured, the Internet is just a click away.
The RT-101 is assigned a unique IP addresses that allows it
to communicate directly with the Internet. Activating your
browser and inputting a URL (Universal Resource Locator)
produces a Internet bound data package that is routed
through the RT-101 to Internet. Additionally, since dial up
line fees are dependent on line usage, the RT-101 supports
the following cost saving functions:
IP Spoofing
IP protocol tends to be quite talkative; that is, it is always
requesting and sending RIPs (routing information packets)
to detect any change in resource status-- servers, routers
and other peripheral devices. Spoofing is a means of
filtering the chatter (RIPs) so that when no important data
is present the line can be dropped as defined by the
Disconnect time-out setting. After the line is dropped,
the spoofing mechanism fools the local network into
thinking the line is still up and that the Internet
resources are still available. Without spoofing, the line
would remain up indefinitely and huge line fees would be
incurred.
Dial On Demand
Dial On Demand is an intelligent feature that monitors the

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dropped communication link for transmission activity. If
activity is detected, a connection with the Internet will
automatically be re-established. To the user, it is as if the
line were never dropped.
Figure 1-1: Office to Internet Diagram

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Package Contents
Please inspect your package. The following items
should be included:
•The RT-101 Unit
•Power Adapter
•Configuration Serial Cable
•This User’s Manual
If any of the above items are damaged or missing, please
contact your RT-101 dealer as soon as possible.
Features Overview
This section describes the RT-101 features and their
functions. Please take a few minutes to familiarize
yourself with your new Internet router.
RT-101 Outlook
1
6
2
7
4
5
3
SmartIPRouter
Figure 1-2: RT-101 Internet Router

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Feature Description
ŒPower port Connect the power adapter to this
port.
•10Base-T port Connect 10Base-T cabling to this
port.
Ž10Base2 port Connect 10Base2 cabling to this
port.
•Serial Port Connect the modem to this
port.
•
DIP switches Used to put the RT-101 in the
configuration mode. For
more information, refer to DIP
Switches table below.
‘Error LED This LED is used to indicate an
error. However, during
power On it is normal for this
LED to light. For more
information, see the following
LED Status Table.
’Link LED This LED should be on during
normal operation. For more
information, see the following
LED Status Table.

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Dip Switches
DIP Switches
SW1 SW2 Description
OFF OFF
ON OFF Normal Operation
OFF ON
ON ON Configuration Mode
LEDs
LED Status Table
LINK
Green LED ERROR Red LED Description
On On During power On, both LEDs
should light then the Red
LED should go off. If
both LEDs stay on, there is a
hardware problem.
Consult your dealer.
On Off Normal Operation (Power On
Self Test OK)
Flashing Off Normal Operation (Receiving
Packets from LAN)
Flashing Flashing When both LEDs are flashing
intermittently, there is an
error. Contact your dealer
for technical support.
Pre-Installation Checklist
Before installing the Communication Server, you should:
•Remove the Sensitive Information page at the front of
this manual and store it in safe place. It contains
sensitive information on the Communication Server
security features.

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•Carefully read the entire manual.
•Ensure that you meet all hardware and software
requirements.
Requirements
•Any DEC VT52/VT100 compatible terminal
application including Telix, Crosstalk, ProComm,
SmartCom and Windows 95 Hyper Terminal.
•TCP/IP protocol enabled.
•Ethernet Network employing 10Base-T or 10Base2
cable.
•An external asynchronous modem.
•One standard serial cable to connect the modem and
RT-101.
•Router account with local ISP.

2 CONFIGURATION
Using the configuration software included with the RT-101,
you set the parameters necessary for Office to Internet
operation such as local and remote IP addresses, Net Masks
and telephone numbers. Prior to starting the configuration
process, ensure that you have a DEC VT52/VT100
compatible communication program.
1. With the RT-101 powered Off, connect the RT-101
serial port directly to your PC serial port
using the packaged configuration serial cable.
2. Set both of the RT-101’s DIP switches to their On
positions. See the Dip Switches table in Chapter 1
for more information.
3. Configure your DEC VT100 or DEC VT102
compatible communications program. If needed
consult the communication programs manual and
ensure that the following parameters are set:
•VT100
•19200bps
•8-bit data
•no parity
•1 stop bit
•Software (XON/XOFF) flow control
4. Power On the RT-101 by plugging in the power
adapter. The configuration program will
automatically initiate.
5. Configure the RT-101 as described below.

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6. Once the configuration is complete, Save and reset
the device.
7. Power off the RT-101 and Set the DIP switches to
their OFF positions. Now you are ready to install the
RT-101 in the LAN for Internet Access.
Device Configuration
Once the RT-101 is powered On, it will automatically
initiate the configuration program. The table below
describes the keystroke commands used to navigate the
configuration program.
Keystroke Description
ESC Used to escape the input fields or
return to the previous menu.
Pressing ESC while at the first panel
will refresh the first panel.
TAB or èor
êMoves to the cursor to the next
option in descending order. If the
selected option is the last option,
pressing anyone of these keys will
return you to the first option.
çor éMoves the cursor to the next option
in ascending order. If the selected
option is the first option, pressing
either of these keys will return you
to the last option.
ENTER Used to select the current option for
configuration.
Basic Configuration Menu

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Once the RT-101 is powered On, it will automatically
initiate the configuration program. Simply navigate to the
desired option as described in the previous table and press
enter. The configuration program will either move the
cursor to the input field, where you input configuration
settings directly from the keyboard, or display a predefined
list of values for you to choose from. Note that those
options contained in brackets [ ] have submenus.
[ Basic configuration ]
Local IP address: 203.70.212.5
Local network mask: 255.255.255.0
Remote IP address: 0.0.0.0
Remote network mask: 255.255.255.0
>IP broadcast address: 203.70.212.255
Default gateway IP address: 139.175.50.252
Local ID:
Local password:
Line type: Leased line (Null modem)
Baud rate: 38400 bps
Phone number: 3571058
Disconnect link if inactive for more than 0 minutes.
[Modem settings]
[Networking settings]
Save and reset device
Version 1.00
----------------------------------------------------------------------------------------------------------
ESC - Back to Main Menu, TAB - Change field, ENTER - Select

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Option Description
Local IP
Address Enter the IP address of the RT-101
Local Network
Mask Enter the Net Mask
Remote IP
Address Enter the ISP provided IP address
Remote Network
Mask Enter the ISP provided Net Mask
IP Broadcast
Address Enter the broadcast address for your sub-
network segment
Default Gateway
IP Address The correct IP addresses for this option
varies depending on implementation. If you
will using the RT-101 to connect directly
with the ISP, then enter the Remote IP
Address
Local ID Enter the account name provided by your
ISP. This name will be used to negotiate a
connection with the ISProuter using
PPP (Point to Point Protocol) when the ISP
router sends an user name authentication
request
Local Password Enter ISP provided password. This
password will be used to negotiate a
connection with the ISP’s router using PPP
(Point to Point Protocol) when the remote
router sends a password authentication
request.

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Option Description
Line Type Select Lease Line(Null modem) if you are
using a lease line. When this option is
enabled, the Initial String, Answer On
String, Answer Off String, Hang-Up String
and Dial Prefix String are disabled and
RTS/CTS flow control is set. Otherwise
select Dial up line.
Baud rate This option determines the data transmission
speed on the serial line. Ensure that the
selected speed is supported by your modem.
Below is a list of the available speeds
Phone No Enter the ISP provided telephone number
following the conventions described in your
modem user’s manual.
Dial Up Line
>Leased Line (Null Modem)
4800 bps
9600 bps
19200 bps
>38400 bps
57600 bps
115.2k bps
230.4k bps

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Option Description
Disconnect Link
if inactive for
more than N
mutes:
This option sets the time that a connection
must remain inactive before the connection
is terminated. Acceptable “N”values
are 0-255 minutes with 0 having the special
meaning of no time-out. If using a lease line
set this value to zero.
[Modem Settings]
Selecting the Modem Settings option will cause the
following menu to appear.
Option Description
[ Modem Settings ]
Modem AT commands:
>Initial string: AT&F&C1&D3&K3S7=60
Answer on string: ATS0=1
Answer off string: ATS0=0
Hang-Up string: ~~~+++~~~ATH0
Dial prefix string: ATDT

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Initial String You must specify the following in your
Initial String:
•Fixed baud rate setting (disable
serial data rate adjustment)
•RTS/CTS flow control
•DCD to track the presence of a
carrier
•DTR off to hang-up modem
•DSR always on while modem is
on (Recommended)
Note:
For a modem whose AT
command set is the same as
represented in Appendix D, the
Initial String would look like the
following:
AT&F&B1&H3&C1&D2&S0
Consult your modemAT
command set for more
information on the Initial String
parameters described above.
Answer On
String This option is reserved for future
implementations.
Answer Off
String The Answer Off string tells the modem not
to answer
Hang-Up String Tells the modem to break the connection
when PPP negotiation fails or when an
invalid user name or password is entered
Dial Prefix
String Determines the dial tones and dial options to
be used. For more information, refer to the
ATD command in Appendix D.

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[Network Settings]
Selecting the Network Setting option will cause the
following menu to appear.
[ Network configuration ]
Serial Port:
>UDP checksum: Yes
Periodic RIP: Yes
Generate zero fill (BSD 4.2) broadcast address: No
Use ethernet IP address and network mask: No
IP address: 139.175.50.93
Network mask: 255.255.255.0
Local MTU: 1500
Remotw MTU: 1500
PPP Link:
Connect-tries: 3 Tries
Delay between two tries: 1 Minutes