Table of Contents
Configuration Procedures
3.2 Configuration Checklist
3.3 Logon to the CBOS
3.4 Configure Management Virtual Connections
3.5 Using Telnet
3.5.2 Connecting from a UNIX Machine
3.5.3 How to Keep Telnet from Timing Out During Your Session
3.7 Configure Timeout Values (DOH)
3.8 Update the CBOS Prompt
3.9 Change Passwords
3.10 Save Configuration Changes
3.11 Evaluate System Activity and Performance
3.12 Retrieve Process Information
Configuration Procedures
3.1 Introduction
This chapter provides information about configuring your Cisco 626 ATM ADSL Modem. Your unit comes to you completely preconfigured for full operation. However, you may need to configure for management virtual connections (VC) and network timeouts. This chapter provides configuration procedures for management VCs and network timeouts.
3.2 Configuration Checklist
The following table identifies the configuration procedures you may need. Please check with your service provider before proceeding with any configuration procedures.
Table 3-1: Checklist for Configuration
| Configuration Procedures | Page Number |
|---|---|
|
3-2 |
|
|
3-3 3-11 |
|
|
3-12 |
|
|
3-13 |
|
|
3-13 3-14 |
3.3 Logon to the CBOS
After connecting all system cables, turning on the system, and starting the terminal access program, press the Enter key until the CBOS welcome screen appears. When you see the welcome screen, you can logon to the CBOS.
3.3.1 Operation Modes
The CBOS also has two modes of operation: exec and enable. The CBOS defaults to exec mode when you log in. exec mode grants read-only (command execution) privileges to a user.
To write changes to NVRAM, you must work in enable mode. Follow the steps below to invoke enable mode:
1. Type enable at the command line:
cpe626# enabled
2. Type another password when CBOS prompts you:
cpe626# enabled
Password:
Note If you have not set any passwords, press the Enter key when the system prompts you for a password.
3.4 Configure Management Virtual Connections
Your system comes preconfigured for full and immediate network operation. However, you may need to directly manage your Cisco 626 over the network. To do this you must establish and set management virtual connections (VC).
Note You must be in the enable mode to perform these procedures.
Each interface is expressed as atmx, where x is either 0 or 1. The atm0 interface is reserved for the local interface. The atm1 interface is used for the ADSL remote interface.
The valid ranges for the VPI and VCI addresses is shown in the following table.
Table 3-2: VPI/VCI Address Ranges
| VPI Range | VCI Range |
|---|---|
|
0 to 255 |
0 to 65535 |
Changing VPI Settings
1. To set the VPI number to 2, enter:
cpe626# set interface atm1 vpi 2
2. To begin using this connection with the new settings, enter:
cpe626# set interface atm1 enable
To verify your setting do:
cpe626# set interface atm1
A display similar to the following will print to your screen:
atm1 RFC1483
IP address 192.168.1.100 Mask 255.255.255.0
MTU 1500 Metric 0
RX packets 0 errors 0
TX packets 0 errors 0
Port is currently enabled with no link status
VCI 32 VPI 2
3. Repeat steps 1 and 2 for every VPI assignment you want to make.
4. To save the new WAN port configuration, enter:
cpe626# write
5. To exit the CBOS, enter:
cpe626# quit
Note To close an atm connection do: set interface atmx disable.
Changing VCI Settings
1. To set the VCI number to 4, enter:
cpe626# set interface atm0 vci 32
To verify your setting do:
cpe626# set interface atm0
A display similar to the following will print to your screen:
atm1 RFC1483
IP address 192.168.1.100 Mask 255.255.255.0
MTU 1500 Metric 0
RX packets 0 errors 0
TX packets 0 errors 0
Port is currently enabled with no link status
VCI 32 VPI 2
2. To begin using this connection with the new settings, enter:
cpe626# set interface atm0 open
3. Repeat steps 1 and 2 for every VCI assignment you want to make.
4. To save the new WAN port configuration, enter:
cpe626# write
5. To exit the CBOS, enter:
cpe626# quit
3.5 Using Telnet
Telnet provides a command line interface and is used as a means of providing remote login connections between machines on many networks, including the Internet.
 |
Caution Before closing a Telnet connection, always enter exit or quit at the cpe626# prompt. |
3.5.1 Connecting from a Windows NT or a Windows 95 Machine
1. Click on the Start button.
2. Select the Run... option.
3. When the Run box appears, enter cpe626# in the space provided.
4. Click the OK button. The Connect menu appears.
5. Select the Remote System... option from the Connect menu. The following window appears:
Figure 3-1: Remote System List Box
6. Enter the IP address of your modem in the Host Name box and press Connect. The system then initiates a connection session. When connection is initiated, information, similar to the following, is printed to your display:
Cisco Broadband Operating System V2.1.0 - Cisco 626 CPE
Copyright (c) 1999 Cisco Systems,Inc. All rights reserved.
12515 Research Blvd. Building 4 - Austin Texas USA - www.cisco.comLogin:
Note Press the Enter key a couple of times to establish a connection.
7. Provide the login and password information. Once the system authenticates your password, you have access to the CBOS.
Note You can log on to the operating system using no password by press the Enter key at the password prompt. Refer to the "Change Passwords" section on page 3-12 for more information about how to set and change passwords.
Notice to Windows Users
Windows' Telnet client does not support NVT (Network Virtual Terminal) or any extra form of option negotiation. However, if you are going to use the Windows Telnet client, please read the following steps to set your terminal settings.
1. When the Telnet window appears, access the Preferences menu in Telnet by selecting Preferences from the Terminal drop down menu.
Figure 3-2: Telnet Preferences
2. Set the terminal settings on the Terminal Preferences menu to the following values:
Figure 3-3: Terminal Preferences
Notice to Linux Users
When you run Linux without installing the Term/Termcap database, the message BAD ADDRESS displays during a connection attempt. Use the original Linux installation disks to install the Term/Termcap database.
3.5.2 Connecting from a UNIX Machine
The following procedure describes how to log on to your ADSL DMT modem from a UNIX system.
1. Enter the following at your prompt:
telnet <IP address of your system>
Once you have connected, information similar to the following appears on your display:
cbos#
Login:
2. Provide the login and password information. Once the system authenticates your password, you have access to the CBOS.
3.5.3 How to Keep Telnet from Timing Out During Your Session
Telnet sessions time out after a period of inactivity. Enter the following commands to keep the Telnet client from timing out.
cpe626#set telnet timeout offcpe626#write
The telnetsetting is not saved in NVRAM after a reboot. You must explicitly set it for every session.
3.6 Using a TFTP Server
The Trivial File Transfer Protocol (TFTP) enables you to transfer files to and from your ADSL DMT modem. Your system runs a tftp daemon that enables remote users who have TFTP client software, to transfer files to and from the system. The TFTP client is enabled and disabled from the CBOS or the Web Management Interface.
|
Caution For security reasons, Cisco recommends that you disable the TFTP application, except when uploading or downloading a file. |
Software Updates
Use the TFTP utility to transfer a new software image from Cisco to your system, where the file name equals nsrouter.ima.626.
Archives
Use the TFTP utility to backup a copy of your configuration file before changing it so you can easily recover the old file if necessary. The naming conventions for the configuration file are:
- When using the put option of the tftp command, you must name the file
Cisco Broadband Operating System V2.1.0 - Cisco 626 CPE.
Copyright (c) 1999 Cisco Systems,Inc. All rights reserved.
12515 Research Blvd. Building 4 - Austin Texas USA - www.cisco.com
- When using the get option of the tftp command, name the file any name that a standard text editor can view and edit.
3.6.1 Using TFTP from a UNIX Machine
For information on the UNIX TFTP client, access the online manual on your UNIX system, by entering:
man tftp
At your command line prompt and the manual page for TFTP appears. The TFTP UNIX man page contains all the information you need to establish and invoke a remote TFTP session.
3.6.2 Using TFTP from a Windows NT Machine
Follow these steps:
1. Set the IP address for the remote TFTP host computer by entering:
cpe626# set tftp remote <TFTP Host Computer IP Address >
Note If you do not know the IP address, consult your network administrator or Internet Service Provider.
This command instructs the system to accept TFTP transfers from that specific IP address.
2. Start a DOS session and enter one of the following commands:
Login:tftp -itelnet <IP address>get/putCisco Broadband Operating System V2.1.0 - Cisco 626 CPEnsrouter software image file name
Copyright (c) 1999 Cisco Systems,Inc. All rights reserved.
12515 Research Blvd. Building 4 - Austin Texas USA - www.cisco.comLogin:tftp -icpe626# IP addresscpe626# get/put system configuration config file name set telnet timeout off
Where necessary, implement the following options:
-i nscfg.cfgSets the transfer mode to binary mode.
getcpe626# Downloads a file to a specified IP address.
putC:>Uploads a file onto that IP address.
3. Be sure that you reboot the device to activate the new image. When you log back onto your system after the reboot, use the following command to verify the version of the firmware that is active:
cbos# show version
Notice to Windows 95 Users
Windows 95 does not have a TFTP client. If you want to utilize TFTP on a Windows 95 system, you must install a TFTP client from a third-party vendor on your system. One way to locate a TFTP client is to use an Internet search engine to locate a vendor who sells a TFTP client. Some TFTP clients are provided as share or freeware on the Internet. By request, Cisco will provide a TFTP client.
3.7 Configure Timeout Values (DOH)
Your system supports a session timeout value. The session timeout is based on the total uptime of the session. The expiration of the session timeout will end the session. However, since authentication is invisible, only the training delay is perceived by the user (approximately seven to fifteen seconds) when the connection is re-established.
Use the set timeout command to configure the session timeout value in seconds.
1. To set the session timeout rate to 300, enter:
<set timeout session 300
2. To save your changes, enter:
> write
3. To exit the CBOS, enter:
<quit
3.8 Update the CBOS Prompt
The default Cisco 626 system prompt is >. The command prompt is limited to 8 characters. You can change this prompt to a unique subscriber identifier as shown in the following example.
C:>
1. Logon to the CBOS using either the serial or Telnet interfaces. Refer to the "Using Telnet" section in this chapter for more information on how to use Telnet to logon to the CBOS.
2. To change the default prompt to 4412883 as the subscriber identifier, enter:
<set prompt cbos626#
cbos626>
3. To save your changes, enter:
<write
4. To exit the CBOS, enter:
> quit
3.9 Change Passwords
After you have configured your sstem, you should pick new passwords for both the enable and exec modes. Keep in mind that the enable mode provides all the functionality of a system administrator for the ADSL DMT modem. Examples of good and bad passwords are:
- Good Password - 77ta99y (Do not use the sample password.)
- Bad Passwords - Passwords such as your name; or your street address, or home phone number are too predictable.
Use the set password command to change both the root and user passwords as in the following:
1. To change the password enter:
- set password - mode - new password cpe626# Example:cpe626#
2. To save your changes, enter:
cpe626# write
3. To exit the CBOS, enter:
cpe626#quit
3.10 Save Configuration Changes
Use the write command to save any changes you have made during provisioning to the NVRAM configuration file.
cpe626# write
|
Caution If you do not use the write command after changes, all the changes you made during your current session will be lost when you reboot the Cisco 626. |
3.11 Evaluate System Activity and Performance
The following table describes the LEDs and their status.
Table 3-3: Status LEDs
| LED Label | Full Name | Description |
|---|---|---|
|
WAN-LNK |
WAN Link |
When this light is ON, it indicates that a link has been established on the WAN port. The WAN-LNK light blinks steadily during ADSL line training activities. When the light is solid, the system is connected and trained. If the light blinks in a number of times and then stops blinking, this indicates that the Central Office equipment is unavailable. |
|
WAN-ACT |
WAN Activity |
When this light blinks ON, indicates that the WAN port is transmitting or receiving data. |
|
LAN-LNK |
ATM25 LAN Link |
When this light is ON, it indicates that a link has been established on the ATM25 port. |
|
LAN-ACT |
ATM25 LAN Activity |
When this light blinks ON, it indicates activity on the ATM25 port. |
|
PWR |
Power Light |
When this two-color light is Green, the system is ON and working correctly. |
|
ALARM |
Alarm Light |
When the light is Red, the system is ON but indicates a problem or that needs to be resolved. |
3.12 Retrieve Process Information
The stats command shows information about the number of packets transmitted and received and activity information about general applications.
To retrieve statistics:
1. To see a list of variables, enter:
cpe626# stats
2. To display specific statistics, enter:
# stats cpe626# variable from listcpe626#
3. To exit the CBOS, enter:
cpe626# quit
Use the stats command to retrieve key statistics regarding ADSL performance. These statistics are:
- RS Errors --- This statistic shows the Reed-Solomon errors detected. RS errors are the result of line quality problems. Some RS errors are expected in normal operation.
- Corrected --- This statistic shows the Reed-Solomon errors corrected.