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SCS100/200/400 User Guide

7: Troubleshooting

BOOTP Troubleshooting

If the BOOTP request is failing and you have configured your host to respond to the
request, check these areas:

BOOTP Troubleshooting

Area to Check

Explanation

BOOTP is in your system's

/etc/services

file.

BOOTP must be an uncommented line in

/etc/services

.

The SCS is in the loadhost's

/etc/hosts

file.

The SCS must be in this file for the host to answer a BOOTP or TFTP request.

The download file is in the
correct directory and is
world-readable.

The download file must be in the correct directory and world-readable. Specify the
complete pathname for the download file in the BOOTP configuration file, or add a
default pathname to the download filename.

The SCS and host are in the
same IP network.

Some hosts do not allow BOOTP replies across routed IP networks. Either use a host
running a different operating system or put the SCS in the same IP network as the
host.

RARP Troubleshooting

If the unit is unable to get an IP address using RARP, check these areas:

RARP Troubleshooting

Area to Check

Explanation

The SCS name and
hardware address in the
host's

/etc/ethers

file

The SCS name and hardware address must be in this file for the host to answer an
RARP request.

The SCS name and IP
address in the

/etc/hosts

file

The SCS name and IP address must be in this file for the host to answer a RARP
request.

The operating system

Many operating systems do not start an RARP server at boot time. Check the host's

RARPD

documentation for details, or use the

ps

command to see if there is an RARPD

process running.

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Содержание SCS100

Страница 1: ...The content and copyrights of the attached material are the property of its owner Distributed by www Jameco com 1 800 831 4242 ...

Страница 2: ...Part Number 900 249 Revision B December 2003 SCS100 200 400 User Guide ...

Страница 3: ...dows 98 Windows 2000 and Windows NT are trademarks of Microsoft Corp Netscape is a trademark of Netscape Communications Corporation Contacts Lantronix Corporate Headquarters 15353 Barranca Parkway Irvine CA 92618 USA Phone 949 453 3990 Fax 949 453 3995 Technical Support Phone 800 422 7044 or 949 453 7198 Fax 949 450 7226 Online www lantronix com support E mail support lantronix com Sales Offices F...

Страница 4: ...dio frequency energy and if not installed and used in accordance with this guide may cause harmful interference to radio communications Changes or modifications to this device not explicitly approved by Lantronix will void the user s authority to operate this device The information in this guide may change without notice The manufacturer assumes no responsibility for any errors that may appear in ...

Страница 5: ...______________________________ 2 3 Humidity _________________________________________________________________ 2 3 Altitude __________________________________________________________________ 2 3 3 The SCS200 ___________________________________________________ 3 1 Connectors __________________________________________________________________ 3 1 Serial Connector Pinouts_______________________________...

Страница 6: ...___________________________ 5 2 EZWebCon Method ________________________________________________________ 5 2 DHCP Method ____________________________________________________________ 5 4 Command Line Method _____________________________________________________ 5 4 ARP and Ping Method ______________________________________________________ 5 5 BOOTP or RARP Reply Method ______________________________...

Страница 7: ...r Restrictions _____________________________________________________ 6 20 Com Port Redirector __________________________________________________________ 6 20 7 Troubleshooting________________________________________________ 7 1 Technical Support _____________________________________________________________ 7 1 Power up Troubleshooting ______________________________________________________ 7 2 BOOT...

Страница 8: ..._________ 8 2 Reloading Software ____________________________________________________________ 8 2 EZWebCon Method ________________________________________________________ 8 2 FTP Method ______________________________________________________________ 8 2 Web Interface Method ______________________________________________________ 8 3 Command Line Methods ______________________________________________...

Страница 9: ...l ports and a PC card interface The PC card interface allows these products to leverage current and future PC card technology such as 802 11 wireless analog and cellular modems and ATA storage cards The units support baud rates between 300 and 230 400 bits per second Features TCP IP compatibility Remote networking Dial in access Dial out ISP connections Event port logging Email event notification ...

Страница 10: ...al protocol that provides an easy to use method of creating terminal connections to any network host supporting Telnet Rlogin Allows you to initiate a TCP IP login session DNS Domain Name Servers Lets a network nameserver translate text node names into numeric IP addresses SNMP Simple Network Management Protocol Commands that allow system administrators to monitor and manage nodes on a LAN Local A...

Страница 11: ...tor as shown in the figure below SCS100 Front Panel The SCS rear panel has an RJ45 Ethernet connector a reset button and a power connector as shown in the figure below SCS100 Rear Panel Note The Reset button returns the SCS to its factory default configuration when you press and hold it during the power up and boot process Resetting to factory default will enable DHCP 2 1 ...

Страница 12: ... for an understanding of LED functions SCS100 Serial and Network LED Functions LED Function Power Glows green when power is supplied to the SCS Link Glows green while the SCS is connected to a wired 10BASE T or 100BASE T Ethernet network 100 Glows green to indicate a 100 Mb Ethernet connection OK Blinks green yellow or red to indicate network activity Green Flashes 2 3 times per second during boot...

Страница 13: ...ay affect operation Do not operate near heating or cooling devices or areas that open to the outdoors Operating range 5 to 50 C 41 to 122 F Storage range 40 to 66 C 40 to 151 F Max temp change 20 C 36 F per hour Humidity Operation 10 to 90 non condensing Ideal 40 to 60 Storage 10 to 90 non condensing Altitude Note For operations above 2 4 km 8 000 ft decrease the operating temperature rating by 1 ...

Страница 14: ...B9 serial connector a male DB25 serial connector and a reset button SCS200 Front Panel DB9 Serial Port Reset Button The SCS200 rear panel has an RJ45 Ethernet connector a power connector and a PC card interface The SCS200 rear panel has an RJ45 Ethernet connector a power connector and a PC card interface SCS200 Rear Panel RJ45 Ethernet Port Power Connector 3 1 ...

Страница 15: ...gs are 9600 baud 8 bits no parity and 1 stop bit DB25 Serial Connector DTE DB25 Male RS 232 DB9 Connector The SCS200 DB9 connector provides an RS 232 DTE serial port The default serial port settings are 9600 baud 8 bits no parity and 1 stop bit DB9 Serial Connector PC Card Slot The SCS200 PC card slot accepts Type I II PC cards As of this writing the SCS200 software supports 16 bit IEEE 802 11 wir...

Страница 16: ...ws green to indicate a 100 Mb Ethernet connection Link Glows green while the SCS is connected to a wired 10BASE T or 100BASE T Ethernet network The PC Card LED varies in meaning depending on what kind of card is currently installed SCS 200 PC Card LED Functions LED 802 11 Cards ATA Cards Modem Cards Not lit No card in slot No card inserted No card inserted Green solid Ready Ready Ready Green blink...

Страница 17: ...ct operation Do not operate near heating or cooling devices or areas that open to the outdoors Operating range 5 to 50 C 41 to 122 F Storage range 40 to 66 C 40 to 151 F Max temp change 20 C 36 F per hour Humidity Operation 10 to 90 non condensing Ideal 40 to 60 Storage 10 to 90 non condensing Altitude Note For operations above 2 4 km 8 000 ft decrease the operating temperature rating by 1 8 C for...

Страница 18: ... Front Panel The SCS400 front panel has four DB9 serial port connectors and an RJ45 Ethernet connector SCS400 Front Panel Side Panel The SCS400 side panel has a reset button two PC Card Slots and two power connectors SCS400 Side Panel Reset Button Screw Terminal Power Connector Power Connector PC Card Slots 4 1 ...

Страница 19: ...S 232 Serial Connector default will enable DHCP PC Card Sl networking PC cards PCMCIA modem A flash disks and hard drive PC cards New cards may be added Power Con Power Jack The SCS400 ships with a standard barrel power jack whose inner conductor is positive Power Jack Connector ots PC Card Slot The SCS400 PC card slot accepts Type I II PC cards As of this writing the SCS400 software supports 16 b...

Страница 20: ...D Functions LED Function Serial 14 Blinks green to indicate serial activity OK Blinks yellow green or red to indicate network activity Green Blinks every 2 seconds when booted Yellow Indicates outgoing network traffic Red Indicates ingoing network traffic Link Glows green or yellow while the SCS is connected to a wired 10BASE T or 100BASE T Ethernet network Off Not connected to a wired Ethernet ne...

Страница 21: ... n a Initialization problem Specifications of the SCS400 Power Screw terminal power jack 9 30 VDC Power Cube Adapter input output 100 240 VAC US 100 240 VAC international power cord 12 VDC DC power input 9 30 5 VDC Current 1 5 A 12 V Power consumption 18 Watts max Temperature Note Rapid temperature changes may affect operation Do not operate near heating or cooling devices or areas that open to th...

Страница 22: ...r status You must enter the Set Privileged command to become the privileged user The default privileged password is system Connecting the SCS 1 Place the SCS in a secure location close to the device or devices it will service 2 Connect your serial devices to the DB25 and or DB9 serial connectors as appropriate for the SCS model 3 Connect the Ethernet network to the SCS in one of the following ways...

Страница 23: ...st assign an IP address to the SCS before you can perform any configurations We recommend you use the first method listed below EZWebCon EZWebCon Method We recommend using EZWebCon software for initially configuring the SCS EZWebCon is located on the distribution CD ROM The README file provides installation instructions Use the following steps to assign an IP address using EZWebCon 1 Start EZWebCo...

Страница 24: ...lays Enter IP Settings 5 Enter the IP related settings a For IP Address enter the desired IP address b For Subnet Mask change the values provided only if you wish to use a mask other than the default The default value should be correct in most cases 6 For Gateway Address select None 7 Click Next The Assign IP address Assignment Status window displays 5 3 ...

Страница 25: ...it to factory defaults via the reset button command line or web interface will enable DHCP See page 2 1 for information on resetting hardware or page 7 4 for information on the Flush NVR command Command Line Method To assign an IP address to the SCS via a terminal 1 Attach a terminal to the serial port port 2 and press Enter You see a Local prompt at which you can enter configuration commands 2 On...

Страница 26: ...ing the specified address If no duplicate is found the SCS uses that IP address and responds to the ping packet UNIX Host 1 Create an entry in the host s ARP table and substitute the SCS s hardware address and intended IP address 2 Ping that IP address This process typically requires super user privileges Entering ARP and Ping UNIX arp s 192 0 1 228 00 80 a3 xx xx xx ping 192 0 1 228 Windows Host ...

Страница 27: ... 228 Note The default login password is access The default privileged password is system After you have entered both passwords and gained access change those passwords from their default settings BOOTP or RARP Reply Method A host based BOOTP or RARP server can provide information for the SCS to use to configure an IP address See the host based documentation pages for configuration information Keep...

Страница 28: ...lows you to set up menus and change passwords without needing to know commands Once the IP address for your SCS is set perform the following steps to launch the web browser interface from EZWebCon 1 Click to select the device you wish to configure 2 On the menu bar click Action Manage This action launches the web browser interface to your device Authentication on the Web Browser Interface 3 Type l...

Страница 29: ... 400 User Guide 5 Installation Server Configuration Window 5 Select a link from the left navigation column to configure the SCS The root privileged level authorization window displays Root Level Authorization 5 8 ...

Страница 30: ...elnet and SSH Secure Shell are enabled by default to allow TCP IP connections To form a Telnet connection to the SCS 1 Enter the Telnet command followed by the SCS s IP address a space and 7000 2 Enter the login password The default login password is access Until authentication is configured and users are added any username works Forming a Telnet Connection telnet 192 0 1 88 7000 access not echoed...

Страница 31: ...o the SCS s IP address and the socket number of the desired port The SCS s serial ports allow three types of socket connections SSH connections at socket 22xx Telnet IAC interpretation at socket 20xx and raw TCP connections at socket 30xx where xx is the port number For example to open a Telnet connection to port 2 of an SCS at IP address 192 0 1 168 issue the command telnet 192 0 1 168 2002 from ...

Страница 32: ...rd company product version banner displays if either of these two files is not present in the SCS Menus Enabling Menu Mode If others need to access devices attached to the SCS but you wish to limit their options use menu mode Menus allow users to access often used hosts and services without needing to know command syntax the IP address of the non local devices or the socket numbers involved You ca...

Страница 33: ...ed menu feature This section describes the basic menu function for a more advanced menu structure refer to the SCS Reference Manual Create a menu with the web browser interface by performing the following steps 1 Click the Menu link under the Quick Setup options Menu Settings 2 Enter a title for your menu in the Title field 3 Create menu entries by entering a description which will be displayed in...

Страница 34: ...ompt type menu 4 Click the Update button to save the menu settings Using Menu Connection Commands Changing a Port Name You can change a port name to reference the type of device that port is connected to For example a port attached to a router could be named router To change the name of a port open the configuration page for that port Ports Configure and enter the new name in the Port Name field C...

Страница 35: ...ction is open you can jump between connections using the Ctrl B and Ctrl F hot keys Note If you do not include the disconnect command in the menu entry you must manually disconnect each session using the disconnect command at the Local prompt or from a menu selection An alternative is to enable Inactivity Logout on each port to automatically logout a port See the SCS Reference Manual for additiona...

Страница 36: ...erial port 3 Check the Menu checkbox Enabling Menu Mode 4 Click the Update Port Settings button 5 If desired enable menu mode on other ports by repeating these steps Using the Menu Once you have both configured the menu and enabled menu mode on a port you can test the menu by forming a Telnet connection to that port ...

Страница 37: ...is Break conditions originating from incoming Telnet and SSH connections are based on the settings for port 0 the network template port You must define where the break condition will be processed using the Set Define Port Break Local Remote command for each serial port and port 0 The default break sequence for port 0 is Ctrl Y There is no default break sequence for the serial ports Alternate Break...

Страница 38: ...The AltBreak sequence returns the user to a local SCS command prompt The user Telnets to the SCS Local prompt and issues a Connect Local command to a serial port Template port 0 is set to Break Remote The AltBreak sequence causes a break condition to be generated to the target port Note The target port s break settings do not apply or affect this situation Modem Mode Modem mode allows the SCS to e...

Страница 39: ...User Dial Up You can accomplish dial up access to the SCS either using a data link protocol typically PPP or using an ASCII based terminal connection with a terminal emulation application such as HyperTerminal Connectivity to the SCS from a remote location requires that you create a user account connect and configure a modem enable authentication and specify an IP address range for use during remo...

Страница 40: ...enticate Users box e Click the Update button 3 To configure a PC card modem for the SCS200 or SCS400 insert the PC card modem into the PC card slot and follow these steps a Click the Modem link b Click the Configure link next to port 3 the PC card slot c Leave the modem type as Generic the default for a PC card modem d If you want to enable authentication check the Authenticate Users box e Click t...

Страница 41: ...he SCS for the pool range settings to take effect Event Port Logging and Email Notification You can configure each SCS serial port to store its console output in a log file If email notification is also enabled a system administrator receives an email through an SMTP mailserver if the connected device reboots or otherwise produces a burst of console output To enable email notification configure th...

Страница 42: ... xx is the port name and changes the specified port to access remote You can access the port log via ftp to the ram directory 4 Click the Email Events checkbox This setting enables email notification for the serial log 5 Click the Update Port Settings button to save changes When a port that has Email Events enabled receives a burst of 20 or more characters in its serial log the port buffers the in...

Страница 43: ... the Create button 4 Configure the email site a In the To field enter the email address for the recipient To enter a series of email addresses separate each address with a comma The maximum number of characters for this field is 64 b In the From field enter the text to be displayed in the From field of the email message The maximum number of characters for this field is 32 c In the SMTP Host field...

Страница 44: ...te named outgoing is created Once the site is properly configured outbound packets should cause the site outgoing to start and dial out using the modem 1 Configure a modem to handle connections from the SCS as described earlier 2 Click the Dial Out link under Quick Setup 3 Complete the following fields a The Remote Username and Password for the ISP b The Port that the modem is attached to for a PC...

Страница 45: ...methods to secure communication from one host to another on a network The SCS products support SSHv1 and the more robust SSHv2 This section describes how to configure the SCS to support either method To use SSH you need an SSH client program on your computer Defining Supported SSH Connections By default the SCS is configured to allow both SSHv1 and SSHv2 client connections In the default mode the ...

Страница 46: ...blic key For example on a UNIX host your public key is stored in a file called ssh identity pub The SSH client s key generation software creates both an unreadable private key file often called identity and a human readable public key file identity pub Note Not all clients come with this program If yours does not you may need to use the Username Password Authentication method described below Once ...

Страница 47: ...ord are then checked against the Radius SecurID or local user databases in order of their precedence settings See the SCS Reference Manual for information on authentication precedence Setting up RSA Shared Key Authentication for SSHv1 This procedure assumes you have generated the RSA authentication keys and copied the public half of the key pair to a file called AUTHORIZED_KEYS on your local compu...

Страница 48: ...that directory 5 Reboot the SCS New authentication keys will be generated within a few minutes based on the list of authorized user public keys A file called host_dsa_key contains the authorized users private identity keys A file called host_dsa_key pub contains the authorized users public keys As you add individual users add their public keys to the AUTHORIZED_KEYS2 file on your workstation and F...

Страница 49: ...s and specify the public key file to use 3 If connecting directly to a serial port on the SCS specify the port number 22xx where xx is the port number 4 If your RSA key is passphrase protected enter your password 5 If you are not using an RSA key specify the username and password the SCS will use to authenticate you UNIX Platforms To form a connection from Unix your computer must have an SSH clien...

Страница 50: ...rget portlist To reject serial logins to ports not on a user s port list use the command Set Define Authentication User username Port Serial portlist To show the user s current port restrictions use the command Show Authentication User username To reset the permissions back to the default use the command Set Define Authentication User username Port Factory Com Port Redirector The Com Port Redirect...

Страница 51: ...less settings Note Some unexplained errors might be caused by duplicate IP addresses on the network Make sure that your SCS s IP address is unique Technical Support If you are experiencing an error that is not described in this chapter or if you are unable to fix the error you may Check our online knowledge base at www lantronix com support com E mail us at support lantronix com Call us at 800 422...

Страница 52: ...lor and then contact your dealer or Lantronix Technical Support The SCS will not be operational until the fault is fixed There is a problem with the serial connection or the set up of the serial device Check the terminal setup and the physical connections including the cable pinouts Try another serial device or cable or cycle power on the SCS The SCS completes its power up and boot procedures but ...

Страница 53: ...hname to the download filename The SCS and host are in the same IP network Some hosts do not allow BOOTP replies across routed IP networks Either use a host running a different operating system or put the SCS in the same IP network as the host RARP Troubleshooting If the unit is unable to get an IP address using RARP check these areas RARP Troubleshooting Area to Check Explanation The SCS name and...

Страница 54: ...t to configure the SCS These commands are a subset of the entire SCS command set For example a typical TCP IP configuration might use the following commands BCP Command Examples Boot SET SERVER IPADDRESS 192 0 1 229 Boot SET SERVER SOFTWARE tftpboot SCS200 SYS Boot SET SERVER LOADHOST 192 0 1 188 Boot SET SERVER SECONDARY 192 0 1 22 Boot FLASH Initialization begins in 5 seconds These commands set ...

Страница 55: ...blems Set Server IPAddress ip_address Specifies this SCS s IP address Uses the standard numeric format Set Server Loadhost ip_address Specifies the host to attempt to load the file from The IP address should be in standard numeric format no text names are allowed Set Server RARP Enabled Disabled Enables or disables the sending of RARP queries during the boot sequence It is enabled by default Set S...

Страница 56: ...SCS100 200 400 User Guide 7 Troubleshooting Show Server Use this command when issuing other commands to view the current SCS setup 7 6 ...

Страница 57: ...tion of the SCS and the processing of commands You can update the contents of Flash ROM by downloading a new version of the operational software Obtaining Software You can obtain a current firmware file and release notes for the SCS from the Lantronix web site www lantronix com or by using anonymous FTP ftp lantronix com Via the Web You can download the latest version of the firmware from the Tech...

Страница 58: ...le name should not be changed The download file should be world readable on the host The path name has a sixteen character length limit The file name has a twelve character limit for the filename Note If you experience problems reloading Flash ROM refer to Troubleshooting Flash ROM Updates EZWebCon Method You can use EZWebCon to update your software 1 In EZWebCon highlight the SCS 2 Select Action ...

Страница 59: ...he OK Activity LED blinks quickly while the SCS is booting and reloading code and then slowly when it returns to normal operation Note Before entering the Initialize Reload command check your settings using the List Server Boot command If you are attempting to update the operating code of an SCS not on a local network you must specify a boot gateway router To specify the boot gateway use the comma...

Страница 60: ...cks can solve problems that may occur when updating the Flash ROM Troubleshooting Flash ROM Updates Protocol Area to Check Check the file and directory permissions Ensure the loadhost name and address are specified correctly and that their case matches that of the filenames on the host system Ensure the file and pathnames are enclosed in quotes to preserve case Ensure that TFTP is enabled on the h...

Страница 61: ...e Test IEC61000 4 3 1996 Radiated Immunity Field Test IEC61000 4 4 1995 Electrical Fast Transient Test IEC61000 4 5 1995 Power Supply Surge Test IEC61000 4 6 1996 Conducted Immunity Test IEC61000 4 8 1993 Magnetic Field Test IEC61000 4 11 1994 Voltage Dips Interrupts Test Supplementary Information This Class A digital apparatus complies with Canadian ICES 003 CSA and has been verified as being com...

Страница 62: ...tronix Lantronix will ship the replacement media to the customer In no event will Lantronix be responsible to the user in contract in tort including negligence strict liability or otherwise for any special indirect incidental or consequential damage or loss of equipment plant or power system cost of capital loss of profits or revenues cost of replacement power additional expenses in the use of exi...

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