1
HelloDevice Pro Series
User Guide
PS100/PS200/PS400
Version 1.0.5
2003-06-24
2
User Guide for the HelloDevice Pro Series
Version 1.0.5
Firmware version 1.2.*
Printed in Korea
Copyright
Copyright 2002, Sena Technologies, Inc. All rights reserved.
Sena Technologies reserves the right to make changes and improvements to its product without
providing notice.
Trademark
HelloDevice™ is a trademark of Sena Technologies, Inc.
Windows® is a registered trademark of Microsoft Corporation.
Ethernet® is a registered trademark of XEROX Corporation.
Notice to Users
When a system failure may cause serious consequences, protecting life and property against such
consequences with a backup system or safety device is essential. The user agrees that protection
against consequences resulting from system failure is the user's responsibility.
This device is not approved for life-support or medical systems.
Changes or modifications to this device not explicitly approved by Sena Technologies will void the
user's authority to operate this device.
Technical Support
Sena Technologies, Inc.
210 Yangjae-dong, Seocho-gu
Seoul 137-130, Korea
Tel: (+82-2) 573-5422
Fax: (+82-2) 573-7710
E-Mail: support@sena.com
Website: http://www.sena.com
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Contents
1: Introduction 6
1.1 Overview................................................................................................................................ 6
1.2 Package Check List................................................................................................................ 7
1.3 Product Specification.............................................................................................................. 8
1.4 Terminologies and acronyms .................................................................................................. 9
2: Getting Started 11
2.1 Panel Layout ........................................................................................................................ 11
2.1.1 PS100 Panel Layout................................................................................................... 11
2.1.2 PS200 Panel Layout................................................................................................... 12
2.1.3 PS400 Panel Layout................................................................................................... 13
2.2 Connecting the Hardware ..................................................................................................... 15
2.2.1 Connecting the power................................................................................................. 15
2.2.2 Connecting to the network .......................................................................................... 15
2.2.3 Connecting to the device ............................................................................................16
2.3. Accessing Console Port....................................................................................................... 17
2.3.1 Using Serial console................................................................................................... 17
2.3.2 Using Remote console ............................................................................................... 19
3: IP Address Configuration 21
3.1 Static IP................................................................................................................................21
3.1.1 Overview.................................................................................................................... 21
3.1.2 IP address.................................................................................................................. 22
3.1.3 Subnet mask .............................................................................................................. 22
3.1.4 Default gateway ......................................................................................................... 22
3.1.4 Primary and Secondary DNS...................................................................................... 23
3.2 DHCP .................................................................................................................................. 23
3.2.1 Overview.................................................................................................................... 23
3.2.2 DHCP setting ............................................................................................................. 24
3.3 PPPoE................................................................................................................................. 25
3.3.1 Overview.................................................................................................................... 25
3.3.2 PPPoE setting............................................................................................................ 26
4: Serial Port Configuration 27
4.1 Host mode configuration....................................................................................................... 29
4.1.1 Overview.................................................................................................................... 29
4.1.2 TCP server mode operations ...................................................................................... 31
4.1.3 TCP client mode operations........................................................................................ 33
4.1.4 TCP server/client mode operations ............................................................................. 36
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4.1.5 UDP tunneling mode operations .................................................................................38
4.1.6 UDP server mode operations...................................................................................... 39
4.1.7 Modem emulation mode operations ............................................................................ 40
4.2 UART configuration.............................................................................................................. 42
4.2.1 Type........................................................................................................................... 43
4.2.2 Baud rate ................................................................................................................... 44
4.2.3 Data bits, Stop bits, Parity........................................................................................... 44
4.2.4 Flow control................................................................................................................ 45
4.2.5 DTR/DSR behavior..................................................................................................... 45
4.3 Cryptography configuration................................................................................................... 46
4.4 Options ................................................................................................................................ 47
4.4.1 Inactivity timeout.........................................................................................................47
4.4.2 Inter-character timeout ............................................................................................... 47
5: Advanced Options Configurations 49
5.1 Remote host access control .................................................................................................49
5.1.1 Configuration access.................................................................................................. 50
5.1.2 Serial Port access ...................................................................................................... 50
5.2 Manual DNS configuration.................................................................................................... 51
5.3 Locating server..................................................................................................................... 51
5.3.1 Overview.................................................................................................................... 51
5.3.2 Locating server configuration...................................................................................... 52
5.3.3 Locating server communication protocol..................................................................... 53
6: System Status and Log 54
6.1 Display system status........................................................................................................... 54
6.2 Display log data.................................................................................................................... 55
6.3 Automatic log delivery by email.............................................................................................55
7: System administration 57
7.1 User name and password..................................................................................................... 57
7.2 Date and time settings.......................................................................................................... 58
8: System tools 59
8.1 Factory default reset............................................................................................................. 59
8.2 Firmware upgrade ................................................................................................................ 59
8.3 Ping test............................................................................................................................... 61
8.4 Socket reset......................................................................................................................... 61
Appendix A: Connections 62
A.1 Ethernet Pin outs ................................................................................................................. 62
A.2 Serial Ports Pin Outs............................................................................................................ 62
A.3 Ethernet Wiring Diagram...................................................................................................... 63
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A.4 Serial Wiring Diagram .......................................................................................................... 63
Append ix B: Well-known port numbers 65
Appendix C: Troubleshooting 66
C.1 Power/LED status troubleshooting .......................................................................................66
C.2 Serial console troubleshooting .............................................................................................66
C.3 Remote console troubleshooting .......................................................................................... 66
C.4 IP address troubleshooting .................................................................................................. 67
C.5 DHCP troubleshooting ......................................................................................................... 67
C.6 TCP server operation troubleshooting .................................................................................. 67
C.7 Serial communication troubleshooting .................................................................................. 68
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1: Introduction
1.1 Overview
The HelloDevice Pro Series allows you to network-enable a variety of serial devices that were not
originally designed for networking. This capability brings the advantages of remote management and
data accessibility to thousands of serial devices over the network.
The PS100 is a versatile single-port serial-Ethernet communication device. The PS200 and PS400 are
two-port and four-port serial-Ethernet communication devices respectively expanding the capabilities
of the PS100. The HelloDevice Pro Series supports RS232, RS422 or RS485 on each serial port
allowing virtually any asynchronous serial device to be accessed over a network.
As for the Internet connectivity, the HelloDevice Pro Series supports open network protocols such as
TCP/IP, UDP and PPPoE (PPP-over-Ethernet) allowing serial devices to be accessed over DSL-
based broadband network or conventional LAN (Local Area Network) environment.
The HelloDevice Pro Series provides the full-featured management functions such as status monitor,
remote reset, error log monitor and firmware upgrade using Telnet and serial console port under the
password protection support. In addition, the HelloDevice Pro Series provides IP address filtering
function to protect unintentional data streams to be transmitted to the serial device, and static key
based 3DES data encryption to promise secure data communication.
The HelloDevice Pro Series was designed to accommodate the unique requirements of the Retail
POS, Security, Industrial automation and Medical marketplaces.
Parts of this manual assume the knowledge on concepts of the Internetworking protocols and serial
communications. If you are not familiar with these concepts, please refer to the standards or the
documentation on each subject.
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1.2 Package Check List
- HelloDevice Pro Series external box
- 110V or 230V Power supply adapter
- Serial data cable
- A hardcopy of Quick Start Guide
- CD-ROM including the HelloDevice-IDE, HelloDevice Manager and User Guide
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1.3 Product Specification
PS100 PS200 PS400
1-port
RS232/422/485
Male DB9
2-port
RS232/422/485
Male DB9
4-port
RS232/422/485
Male DB9
Serial speeds 1200bps to 115Kbps
Flow Control: None, Hardware RTS/CTS
Serial Interface
Signals:
RS232 Rx, Tx, RTS, CTS, DTR, DSR, GND
RS422 Rx+, Rx-, Tx+, TxRS485 Data+, Data-
10 Base-T Ethernet with RJ45 Ethernet connector Network Interfaces
Supports static and dynamic IP address
Protocols ARP, IP/ICMP, TCP, UDP, Telnet, DNS, SMTP, DHCP client, PPPoE
User ID & Password
Data encryption: 3DES
Security
IP address filtering
Telnet or serial console port or HelloDevice Manager
System log and statistics
Error log storage up to 100 messages
Automatic email delivery of error log
Full-featured system status display
Management
Firmware upgrade via serial console or telnet
Diagnostic LED Power
Ready
10 Base-T Link, Act
Serial Rx/Tx for each serial port
Supply voltage: 7.5 ~ 30 VDC Power
Supply current:
140mA (nom.)
Supply current:
140mA (nom.)
Supply current:
190mA (nom.)
Environmental Operating temperature: 0 ~ 55
o
C
Storage temperature: -4 ~ 66
o
C
Size:
112 mm L
82 mm W
25 mm H
(4.4 in x 3.2 in x 1.0 in)
Size:
135 mm L
80 mm W
25 mm H
(5.3 in x 3.1 in x 1.0 in)
Size:
230 mm L
153 mm W
30 mm H
(9 in x 6 in x 1.2 in)
Physical
properties
Weight: 290g Weight: 300g Weight: 920g
Approvals FCC(A), CE(A), MIC
Warranty 5-year limited warranty
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1.4 Termi no lo gie s an d a cr o n ym s
The Internetworking related terminologies used frequently in this manual are defined clearly to help
your better understanding of the HelloDevice Pro Series.
MAC address
On a local area network or other network, the MAC (Media Access Control) address is the computer's
unique hardware number. (On an Ethernet LAN, it's the same as your Ethernet address.)
It is a unique 12-digit hardware number, which is composed of 6-digit OUI (Organization Unique
Identifier) number and 6-digit hardware identifier number. The HelloDevice Pro Series has the MAC
address of 00-01-95-xx-xx-xx, which is labeled on the bottom side of the external box.
Host
A user’s computer connected to the network
In Internet protocol specifications, the term "host" means any computer that has full two-way access to
other computers on the Internet. A host has a specific "local or host number" that, together with the
network number, forms its unique IP address.
Session
A series of interactions between two communication end points that occur during the span of a single
connection
Typically, one end point requests a connection with another specified end point and if that end point
replies agreeing to the connection, the end points take turns exchanging commands and data ("talking
to each other"). The session begins when the connection is established at both ends and terminates
when the connection is ended.
Client/Server
Client/server describes the relationship between two computer programs in which one program, the
client, makes a service request from another program, the server, which fulfills the request.
A server is a computer program that provides services to other computer programs in the same or
other computers, whereas a client is the requesting program or user in a client/server relationship. For
example, the user of a Web browser is effectively making client requests for pages from servers all
over the Web. The browser itself is a client in its relationship with the computer that is getting and
returning the requested HTML file. The computer handling the request and sending back the HTML file
is a server.
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Table 1-1 Acronym Table
ISP Internet Service Provider
PC Personal Computer
NIC Network Interface Card
MAC Media Access Control
LAN Local Area Network
UTP Unshielded Twisted Pair
ADSL Asymmetric Digital Subscriber Line
ARP Address Resolution Protocol
IP Internet Protocol
ICMP Internet Control Message Protocol
UDP User Datagram Protocol
TCP Transmission Control Protocol
DHCP Dynamic Host Configuration Protocol
SMTP Simple Mail Transfer Protocol
FTP File Transfer Protocol
PPP Point-To-Point Protocol
PPPoE Point-To-Point Protocol over Ethernet
HTTP HyperText Transfer Protocol
DNS Domain Name Service
SNMP Simple Network Management Protocol
UART Universal Asynchronous Receiver/Transmitter
Bps Bits per second (baud rate)
DCE Data Communications Equipment
DTE Data Terminal Equipment
CTS Clear to Send
DSR Data Set Ready
DTR Data Terminal Ready
RTS Request To Send
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2: Getting Started
This chapter describes how to set up and configure the HelloDevice Pro Series in the first place.
- 2.1 Panel Layout explains the layout of the panel and LED indicators.
- 2.2 Connecting the Hardw are describes how to connect the power, the network, and the serial
device to the HelloDevice Pro Series.
- 2.3 Accessing Console Port describes how to access the console port using a serial console at a
local site or telnet console at a remote site.
Following items are pre-required to get started.
- One DC power adapter (included in the package).
- One serial data cable for configuration and for connecting the RS-232 serial device.
- One PC with Network Interface Card (hereafter, NIC) and/or one RS232 serial port.
- Terminal emulation program running on the PC
- One Ethernet cable
2.1 Panel Layout
2.1.1 PS100 Panel Layout
The PS100 has five LED indicator lamps for status display as shown in Figure 2-1. Two lamps on the
upper side indicate statuses of 10 Base-T Ethernet Link and Act. Next lamp indicates statuses of
receive and transmit of the serial port for data communication. Next two lamps indicate the system
running status and the system power-on status. Table 2-1 describes function of each LED indicator
lamp.
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Figure 2-1. The panel layout of the PS 100
Table 2-1. LED indicat or lam ps of the PS100
Lamps Function
LINK Turned on to Green if connected to 10 Base-T Ethernet network 10 Base-T
Rx/Tx Blink whenever there is any activities such as incoming or outgoing packets
through the PS100 Ethernet port
Serial port Rx/Tx Blink whenever there is any incoming or outgoing data stream through the
serial port of the PS100
Ready Turned on to GREEN if system is running. Status
Power Turned on to RED if power is supplied
2.1.2 PS200 Panel Layout
The front panel of the PS200, as shown below in Figure 2-2, has one power switch, one DB9 serial
port connector and eight LED indicator lamps for status display. The lamp on the left-hand side
indicates the status of the system power-on and system ready. Next two indicate statuses of 10 Base-
T Ethernet Link and Act. Four other lamps indicate statuses of receive and transmit of each serial port.
Table 2-2 describes function of each LED indicator lamp on the panel.
The rear panel of the PS200, also as shown below in Figure 2-2, has one power connector, one RJ45
Ethernet connector for 10 Base-T interface and four DB9 connectors for serial interface.
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(a) The front panel of the PS 200
(b) The rear panel of the PS200
Figure 2-2. The panel layout of the PS200
Table 2-2. LED indicat or lam ps of the PS200
Lamps Function
Power Turned on to RED if power is supplied System Status
LED
Ready Turned on to Green if system is running
Link Turned on to Green if connected to 10 Base-T Ethernet network Ethernet Status
LED
Act Blink whenever there is any activities such as incoming or outgoing packets
through the PS200 Ethernet port
Rx Blink whenever there is any incoming data stream through the specified
serial port of the PS200
Serial port 1~ 2
Status LED
Tx Blink whenever there is any outgoing data stream through the specified
serial port of the PS200
2.1.3 PS400 Panel Layout
The front panel of the PS400 has one power switch, one DB9 serial port connector and twelve LED
indicator lamps for status display. The lamp on the left-hand side indicates the status of the system
power-on and system ready. Next two lamps indicate statuses of 10 Base-T Ethernet Link and Act.
Eight other lamps indicate statuses of receive and transmit of each serial port. Table 2-3 describes
function of each LED indicator lamp on the panel.
The rear panel of the PS400 has one power connector, one RJ45 Ethernet connector for 10 Base-T
interface and four DB9 connectors for serial interface.
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(a) The front panel of the PS 400
(b) The rear panel of the PS400
Figure 2-3. The panel layout of the PS400
Table 2-3. LED indicat or lam ps of the PS400
Lamps Function
Power Turned on to RED if power is supplied System Status
LED
Ready Turned on to Green if system is running
Link Turned on to Green if connected to 10 Base-T Ethernet network Ethernet Status
LED
Act Blink whenever there is any activities such as incoming or outgoing packets
through the PS400 Ethernet port
Rx Blink whenever there is any incoming data stream through the specified
serial port of the PS400
Serial port 1~ 4
Status LED
Tx Blink whenever there is any outgoing data stream through the specified
serial port of the PS400
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2.2 Connecting the Hardware
This section describes how to connect the HelloDevice Pro Series to serial devices for the first time
test.
- Connect the power to the HelloDevice Pro Series
- Connect the Ethernet cable between the HelloDevice Pro Series and Ethernet hub or switch
- Connect the serial data cable between the HelloDevice Pro Series and serial device(s)
2.2.1 Connecting the power
Connect the power jack to the HelloDevice Pro Series power jack using DC power adapter included in
the package. If the power is properly supplied, the [Power] lamp will maintain solid red.
(a) Connecting the power to the PS100 (b) Connecting the power to t he PS200/ 400
Figure 2-4. Connect ing the power to the HelloDevice Pro Series
2.2.2 Connecting to the network
Connect the one end of the Ethernet cable to the HelloDevice Pro Series 10Base-T port and the other
to the Ethernet network. If the cable is properly hooked up, the HelloDevice Pro Series will have a
valid connection to the Ethernet network by indicating:
- [Link] lamp maintains solid green
- [Act] lamp continuously blinks to indicate the incoming/outgoing Ethernet packets
If any of the above does not happen, the HelloDevice Pro Series is not properly connected to the
Ethernet network.
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(a) Connecting a network cable to the PS100 (b) Connecting a netw or k cable to the PS200/400
Figure 2-5. Connect ing a network cable to the HelloDevice Pr o S er i es
2.2.3 Connecting to the device
Connect the serial data cable between the HelloDevice Pro Series and the serial device. If necessary,
supply the power to the serial device attached to the HelloDevice Pro Series.
(a) Connecting a serial devic e to the PS100
(b) Connecting a serial devic e to the PS200/400
Figure 2-6. Connect ing a s er ial dev ice to the HelloDevice Pro Series
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2.3. Acces si ng C o ns ole Port
There are two ways to access console port of the HelloDevice Pro Series depending on whether the
user is located at a local site or a remote site.
- Serial console:
Local users can connect directly to the serial console port of the HelloDevice Pro Series using
serial console cable (null-modem cable).
- Remote console:
Remote users can make a telnet connection to the remote console port (port 23) of the
HelloDevice Pro Series via TCP/IP network.
Both methods require the user to log into the HelloDevice Pro Series in order to continue.
2.3.1 Using Serial console
1) Connect the one end of the serial console cable to the console port on the HelloDevice Pro
Series.
(a) Connecting a serial console cable to the PS100 (b) Connecting a serial console cable to the PS200
(c) Connecting a serial c ons ole c able to the PS400
Figure 2-7. Connect ing a s er ial c onsole cable to the PS200
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2) Connect the other end of the cable to the serial port of user’s computer.
3) Run a terminal emulator program such as HyperTerminal. Set up the serial configuration
parameters of the terminal emulation program as follows:
9600 Baud rate, Data bits 8, Pari t y Non e, S top bit s 1, Hardware f lo w co nt rol (RTS/CTS)
4) Press [ENTER] key.
5) Type the user name and password to log into the HelloDevice Pro Series. A factory default
setting of the user name and password are both admin.
lo gi n : ad min
Password : *****
6) If the user logged into the HelloDevice Pro Series successfully, the main menu screen will
appear on the computer.
From the main menu screen, shown below in Figure 2-8, users can select the menu item for the
configuration of the HelloDevice Pro Series parameters by typing the menu number and pressing
[ENTER] key. In the submenu screen, users can configure the required parameters guided by online
comments. All the parameters are stored into the non-volatile memory space of the HelloDevice Pro
Series, and it will not be stored until users select menu 7.Save changes. When users are finished
with the configuration, the system needs to be rebooted by selecting the menu 9.Exit and reboot.
All the configuration changes will be effective after the reboot.
------------------------------------------------------------------------------ We lc om e to PS-400 co nf ig uration pa ge
Curren t time : 2002 /05/04 14:13:25
Serial No. : PS20 0-020200028 MAC Address : 00-01-95-04-13-80
F/W REV. : V1.2.12 UP time : 0 Days 02:26:00
IP mode : DHCP IP Address : 192.168.0 .152
------------------------------------------------------------------------------ Console#1 (Serial) : Connected
Console#2 (Telnet) : Available (NULL)
Console#3 (Telnet) : Available (NULL)
Console#4 (Telnet) : Available (NULL)
------------------------------------------------------------------------------ Select menu
1. IP Configurat ion
2. Serial port configuration
3. System Status & log
4. Syste m administ ration
5. Advan ced options
6. Syste m tools
7. Save changes
8. Exi t wi thout rebo ot
9. Exi t an d reboot
<ESC> Back , <ENTER> Refresh
----->
Figure 2-8. The main menu screen (PS400)
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2.3.2 Using Remote console
The IP address of the HelloDevice Pro Series must be known before users can access the remote
console port (See IP Address Configuration in chapter 3 for details). Remote console access
function is optional, and can be disabled in the remote access option on the menu (See Remote Host
Access Control in section 5.1 for details). This is useful when system administrator does not want
others to modify the existing configuration. The HelloDevice Pro Series supports Telnet protocol for
remote consoles and the port number for the remote consoles is 23, which is a TCP port number
assigned for Telnet.
Up to three remote console sessions can be established simultaneously using telnet. When they are
established, the first console session has a right to change the parameter values while others have a
right to read parameter values only. If the serial console is established, all of the remote telnet
consoles do not have a right to update the parameter values.
1) Run a telnet program or a program that supports telnet functions such as TeraTerm-Pro or
HyperTerminal. The target IP address and the port number should be those of the
HelloDevice Pro Series. If required, specify the port number as 23. Type the following
command in the command line interface of your computer.
telnet 192.168.1.254
Or run a telnet program with parameters as follows.
Figure 2-9 Telnet pr ogr am set up example
2) The user has to log into the HelloDevice Pro Series. Type the user name and password. A
factory default setting of the user name and password are both admin.
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We lc om e to PS-400 Co nf ig uration
Console#1 (Serial) : Not Connected
Console#2 (Telnet) : Available (NULL)
Console#3 (Telnet) : Available (NULL)
Console#4 (Telnet) : Establishe d (192.168.0.16)
lo gi n : ad min
Password : *****
Figure 2-10. Users ’ logging into the HelloDevice Pro Series (PS400)
3) If the user logged into the HelloDevice Pro Series successfully, the same main menu screen
as the one of serial console will be displayed. The user can select the menu by typing the
menu number and then pressing [ENTER] key. In the corresponding menu screen, the user
can configure the required parameters.
4) If serial console or the other remote consoles are connected already, the new console will be
established as read-only mode. Figure 2-11 shows the screen display of a read-only mode
console.
We lc om e to PS-400 Co nf ig uration
Console#1 (Serial) : Not Connected
Console#2 (Telnet) : Available (NULL)
Console#3 (Telnet) : Establishe d (192.168.0.16) : Read-only
Console#4 (Telnet) : Establishe d (192.168.0.16)
This Console(#3) is Read-Only
lo gi n : ad min
Password : *****
------------------------------------------------------------------------------ We lc om e to PS-400 co nf ig uration pa ge
Curren t time : 2002 /05/04 14:19:47
Serial No. : PS200-020200028 MAC Address : 00-01-95-04-13-80
F/W REV. : V1.2.12 UP time : 0 Days 02:32:22
IP mode : DHCP IP Address : 192.168.0 .152
------------------------------------------------------------------------------ Console#1 (Serial) : Not Connected
Console#2 (Telnet) : Available (NULL)
Console#3 (Telnet) : Establishe d (192.168.0.16) : Read-only
Console#4 (Telnet) : Establishe d (192.168.0.16)
This Console(#3) is Read-Only
------------------------------------------------------------------------------ Select menu
1. IP Configurat ion
2. Serial port configuration
3. System Status & log
4. Syste m administ ration
5. Advan ced options
6. Syste m tools
7. Save changes
8. Exi t wi thout rebo ot
9. Exi t an d reboot
<ESC> Back , <ENTER> Refresh
----->
Figure 2-11. Scr een dis play of a r ead- only m ode c ons ole (PS400)
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3: IP Address Configuration
A valid IP address of the HelloDevice Pro Series needs to be assigned before it starts to work in the
user's network environment. A network system administrator may provide the user with this IP
address setting information for the network. The IP address must be unique within the network.
Otherwise, the HelloDevice Pro Series will not have a valid connection to the network.
Users can choose the desired IP mode out of the three IP operating modes, i.e., Static IP, DHCP, and
PPPoE, on the IP Configuration Screen of console interface. The factory default IP mode is DHCP
mode. Table 3-1 shows the parameter items for IP Configuration menu.
Table 3-1. Hierarchic al v iew of the IP Configuration menu item s
IP mode
IP address
Subnet mask
Default gateway
Static IP
Primary DNS/ Secondary DNS
DHCP IP mode
IP mode PPPoE
PPPoE User name/ Password
3.1 Static IP
3.1.1 Overview
In the Static IP mode, users have to manually specify all the parameters such as IP addresses of the
HelloDevice Pro Series, the gateway computer and the domain name server computers, and the
network subnet mask. The HelloDevice Pro Series tries to locate such information whenever it boots
up.
The user interface for St a tic IP configuratio n is shown below in Figure 3-1. Users can select menu by
typing the menu number and then pressing [ENTER] key.
---------------------------------------------------IP config ur at io n
---------------------------------------------------Select me nu :
1. IP mo de: static IP
2. IP addre ss : 19 2. 168.1.1
3. Sub net mask: 255.255.255.0
4. Defaul t ga te wa y: 192.168 .1 .2 54
5. Primar y DN S: 210 .106.255 .1 88
6. Second ar y DN S: 210.106.2 55 .1 89
<ESC > Back, <ENTER> Refresh
--->
Figure 3-1. Static IP c onfiguration screen
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