Cisco 2431 - IAD Router User manual

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Cisco IAD2430 Series
Integrated Access Devices
Software Configuration Guide
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Text Part Number: OL-4306-03

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Cisco IAD2430 Series Integrated Access Devices Software Configuration Guide
Copyright © 2003 - 2008 Cisco Systems, Inc. All rights reserved.

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CONTENTS
Preface vii
To Access Online User Documentation (PDF and HTML Formats) iii-viii
CHAPTER 1Understanding Interface Numbering and Cisco IOS Software Basics 1-1
Identifying Cisco IAD2430 Models 1-1
Cisco IAD2430-24FXS IAD 1-1
Cisco IAD2431-8FXS IAD 1-2
Cisco IAD2431-16FXS IAD 1-3
Cisco IAD2431-1T1E1 IAD 1-3
Cisco IAD2432-24FXS IAD 1-4
Cisco IAD2435-8FXS IAD 1-4
Port Numbering Conventions 1-5
Understanding Cisco IOS Software Basics 1-5
Getting Help 1-6
Command Modes 1-7
Undoing a Command or Feature 1-8
Saving Configuration Changes 1-8
Upgrading to a New Cisco IOS Release 1-8
Cisco IAD2430 Series Deployment Scenarios 1-9
Where to Go Next 1-10
CHAPTER 2Using the setup Command Facility 2-1
Before Powering On Your Cisco IAD 2-1
The setup Command Facility 2-2
Configuring Global Parameters 2-2
Configuring Controller and Interface Parameters 2-5
Configuring Controller Parameters 2-5
Configuring Fast Ethernet and Serial Interface Parameters 2-5
Fast Ethernet WAN Interface Configuration 2-6
Serial Interface Configuration 2-7
T1/E1 Channelized Mode 2-9
Configuring a 1-Port, 4-Wire 56-kbps DSU/CSU Card 2-11
Choosing Circuit-Switched or Dedicated-Line Service 2-11
Switched Mode 2-12

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Dedicated Mode 2-12
Completing the Configuration 2-13
CHAPTER 3Configuring with the Command-Line Interface 3-1
Configuring the Hostname and Password 3-2
Verifying the Hostname and Password 3-3
Configuring Fast Ethernet Interfaces 3-4
Configuring Network Clock 3-5
Configuring T1/E1 Interfaces 3-7
Configuring Channel Groups on T1/E1 to Support Data 3-8
Configuring Channel Groups on T1/E1 to Support Data Under SHDSL Controller 3-10
Configuring Digital Voice on T1/E1 3-11
Configuring Switch Types for ISDN PRI Q.931 Support 3-12
Configuring DS0 Groups for CAS 3-14
Configuring TDM Cross-Connect 3-16
Configuring TDM to TDM 3-17
Configuring TDM to Analog Voice Port 3-18
Configuring TDM to Physical Serial Interface 3-18
Configuring a WIC-1DSU-T1/E1 Serial WAN Interface Card 3-20
Configuring a WIC-1T or WIC-2T Serial WAN Interface Card 3-24
Configuring a VIC2-2FXO or VIC2-4FXO Voice Interface Card 3-24
Configuring a VIC2-2FXS or VIC2-4FXS Voice Interface Card 3-26
Configuring ATM T1-WAN Ports 3-28
Verifying Your ATM Interface Configuration 3-31
Configuring 1-Port ADSL/SHDSL WAN Interface Card 3-32
Configuration Tasks 3-32
Configuring the ADSL/SHDSL Port on the ADSL and SHDSL WAN Interface Card 3-32
Verifying ATM Configuration 3-35
Configuring a VIC2-2BRI-NT/TE Card 3-36
Saving Configuration Changes 3-38
CHAPTER 4Configuring Voice over IP 4-1
Prerequisites 4-1
Configuring the Voice Interface 4-2
VoIP Configuration Examples 4-4
FXS-to-FXS Connection 4-4
Configuration for IAD-1 4-5
Configuration for Router RLB-w 4-5

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Configuration for Router R12-e 4-5
Configuration for IAD-2 4-6
Linking PBX Users with Digital E&M Trunk Lines over T1/E1 CAS 4-6
IAD SJ Configuration 4-7
IAD SLC Configuration 4-7
PSTN Gateway Access Using an FXO Connection 4-8
IAD SJ Configuration 4-8
IAD SLC Configuration 4-9
PSTN Gateway Access Using an FXO Connection in PLAR Mode 4-9
IAD SJ Configuration 4-9
IAD SLC Configuration 4-10
APPENDIX ACisco IAD2430 Series Configuration Examples A-1
Sample Configuration: Cisco IAD2435-8FXS A-1
Sample Configuration: Cisco 2430-24FXS A-3
Sample Configuration: Cisco 2431-1T1/E1 with WIC-2T A-6
Sample Configuration: Cisco 2432-24FXS with VIC2-4FXO
and QoS A-8
APPENDIX BFormatting the Flash Memory B-1
Formatting Procedures for Flash Memory B-1
Formatting Procedures B-1
Determining the File System on Flash Memory B-1
Formatting Flash Memory as a Class B Flash File System B-3
Formatting Flash Memory as a Class C File System B-4
File and Directory Operations B-5
Operations for Use with Class B Flash File System B-5
Operations for Use with Class C Flash File System B-7
File Operations for Class C Flash File System B-8
Directory Operations for Class C Flash File System B-10
APPENDIX CUsing the ROM Monitor C-1
Entering the ROM Monitor Mode C-1
ROM Monitor Commands C-2
Command Descriptions C-3
Recovering Boot and System Images C-4
Using the xmodem Command C-4
Using the tftpdnld -r Command C-5

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Configuration Register C-6
Changing the Configuration Register Manually C-6
Changing the Configuration Register Using Prompts C-6
Console Download C-7
Command Description C-7
Error Reporting C-8
Debug Commands C-8
Exiting the ROM Monitor C-9
I NDEX

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Preface
This preface describes the objectives, audience, organization, and conventions of this software
configuration guide, and where to get the latest version of this guide.
This preface presents the following major topics:
• Objectives, page vii
• Audience, page vii
• Document Organization, page viii
• Related and Referenced Documents, page viii
• Obtaining Documentation and Submitting a Service Request, page ix
Objectives
After installing the router, use this guide to complete a basic router configuration using the setup
command facility. This guide also contains information on using the Cisco IOS software to perform
other configuration tasks, such as configuring a VoIP interface and other features.
This guide does not provide complete configuration instructions. See the Cisco IOS configuration guides
and command references for detailed configuration instructions.
Audience
This publication is designed for the person who will be responsible for configuring your router. This
guide is intended primarily for the following audiences:
• Customers with technical networking background and experience
• System administrators who are familiar with the fundamentals of router-based internetworking, but
who might not be familiar with Cisco IOS software
• System administrators who are responsible for installing and configuring internetworking
equipment, and who are familiar with Cisco IOS software

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Preface
Document Organization
The following table summarizes the major sections of this document.
Related and Referenced Documents
The documents described here are available online. To be sure of obtaining the latest information, you
should access the online documentation.
To print a document in its original page format, access the online document, and click the PDF icon.
You can also order printed copies of documents. See the “Obtaining Documentation and Submitting a
Service Request” section on page ix.
To Access Online User Documentation (PDF and HTML Formats)
From Cisco.com at http://www.cisco.com, choose Documentation, > Voice and Unified
Communications, > Voice Gat e way, > Cisco IAD2400 Series Integrated Access Devices.
Chapter Title Description
Chapter 1 Understanding Interface
Numbering and Cisco IOS
Software Basics
Provides an overview of the interface numbering
conventions for the Cisco IAD2430 series IADs. Also
provides a basic understanding of Cisco IOS software.
Chapter 2 Using the setup Command
Facility
Describes how to use the setup command facility to
configure your router.
Chapter 3 Configuring with the
Command-Line Interface
Describes how to use the Cisco IOS software
command-line interface (CLI) to configure basic router
functionality.
Chapter 4 Configuring Voice over IP Describes how to configure voice network modules
with digital recEive and transMit (E&M) over T1/E1
CAS, foreign exchange office (FXO), and foreign
exchange station (FXS) interfaces for your router.
Appendix A Cisco IAD2430 Series
Configuration Examples
Provides a variety of configuration examples:
• Cisco IAD2431-8FXS
• Cisco IAD2431-16FXS
• Cisco IAD2430-24FXS
• Cisco IAD 2431-1T1/E1 with WIC-2T
• Cisco IAD2432-24FXS with VIC2-4FXO and QoS
• Cisco IAD2435-8FXS
Appendix B Formatting the Flash
Memory
Provides configuration information for the flash
memory.
Appendix C Using the ROM Monitor Describes how the ROM monitor works in the
Cisco IAD2430 series IAD.

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Preface
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and
revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.

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Preface

CHAPTER
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1
Understanding Interface Numbering and
Cisco IOS Software Basics
This chapter provides an overview of interface numbering in the Cisco IAD2430 series integrated access
devices (IADs). It also describes how to use the Cisco IOS software commands.
This chapter presents the following major topics:
• Identifying Cisco IAD2430 Models, page 1-1
• Port Numbering Conventions, page 1-5
• Understanding Cisco IOS Software Basics, page 1-5
• Upgrading to a New Cisco IOS Release, page 1-8
• Cisco IAD2430 Series Deployment Scenarios, page 1-9
• Where to Go Next, page 1-10
Identifying Cisco IAD2430 Models
Figure 1-1 shows the front panel of the Cisco IAD2430 series IAD. Figure 1-2 shows the front panel of
the Cisco IAD2435 IAD.
Cisco IAD2430-24FXS IAD
The Cisco IAD2430-24FXS provides 24 analog foreign exchange station (FXS) ports with two
10/100BASE-T ports. The chassis has the following interfaces:
• RJ-21 analog voice interface
• Two 10/100BASE-T ports
• External flash memory
• AC and DC power inputs

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Identifying Cisco IAD2430 Models
Figure 1-1 Cisco IAD2430-24FXS Chassis—Front Panel
Figure 1-2 Cisco IAD2435-8FXS Chassis—Front Panel
Cisco IAD2431-8FXS IAD
The Cisco IAD2431-8FXS provides eight analog FXS ports, two 10/100BASE-T ports, and one T1/E1
WAN port. The chassis has the following interfaces (see Figure 1-3):
• RJ-21 analog voice interface
• One T1/E1 port
• One 10/100BASE-T port
• One WIC/VIC slot
• External flash memory
• AC and DC power adapter
Figure 1-3 Cisco IAD2431-8FXS Chassis—Back Panel
88839
CISCO IAD2400
231872
Cisco IAD2400 SERIES
OK 0/0 0/1
FE T1/E1 FXS
CD AL 2/0 2/1 2/2 2/3 2/4 2/5 2/6 2/7
88825
IAD2431-8FXS

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Identifying Cisco IAD2430 Models
Cisco IAD2431-16FXS IAD
The Cisco IAD2431-16FXS provides 16 analog FXS ports with two 10/100BASE-T ports and one T1/E1
WAN ports. The chassis has the following interfaces (see Figure 1-4):
• RJ-21 analog voice interface
• One T1/E1 port
• Two 10/100BASE-T ports
• One WIC/VIC slot
• External flash memory
• AC and DC power inputs
Figure 1-4 Cisco IAD2431-16FXS Chassis—Back Panel
Cisco IAD2431-1T1E1 IAD
The Cisco IAD2431-1T1E1 provides one T1/E1 connection to a PBX, one T1/E1 WAN port, and two
10/100BASE-T ports. The chassis has the following interfaces (see Figure 1-5):
• One T1/E1 ports
• Two 10/100BASE-T ports
• One WIC/VIC slot
• External flash memory
• AC and DC power inputs
Figure 1-5 Cisco IAD2431-1T1E1 Chassis—Back Panel
88826
IAD2431-16FXS
88827
IAD2431-1T1E1

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Identifying Cisco IAD2430 Models
Cisco IAD2432-24FXS IAD
The Cisco IAD2432-24FXS provides 24 analog FXS ports, two 10/100BASE-T ports, and two T1/E1
WAN ports. The chassis has the following interfaces (see Figure 1-6):
• RJ-21 analog voice interface
• Two T1/E1 ports
• Two 10/100BASE-T ports
• One WIC/VIC slot
• External flash memory
• AC and DC power inputs
Figure 1-6 Cisco IAD2432-24FXS Chassis—Back Panel
Cisco IAD2435-8FXS IAD
The Cisco IAD2435-8FXS provides eight analog FXS ports, two Fast Ethernet ports, and one T1/E1
WAN port. The chassis has the following interfaces (see Figure 1-7):
• RJ-21 analog voice interface
• One T1/E1 port
• Two Fast Ethernet ports
• AC and DC power inputs
Figure 1-7 Cisco IAD2435-8FXS Chassis—Back Panel
88824
231873
IAD2435-8FXS
12V DC SA
CONSOLE
AUX
FastEthernet
WAN
0/1 0/0
T1/E1
FXS

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Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics
Port Numbering Conventions
Port Numbering Conventions
Figure 1-8 shows the port numbers of the Cisco IAD2432-24FXS IAD. The figure is provided to show
an example of the port numbering conventions.
Figure 1-8 Analog FXS User Interfaces with Metro Ethernet Interface
Port numbering conventions for all the Cisco IAD2430 series IADs are as follows:
• Foreign Exchange Station (FXS) voice port numbering begins at 2/0 and extends to 2/7, 2/15, or
2/23, depending on the number of voice ports.
• T1/E1 ports are numbered T1 or E1 1/0 and T1 or E1 1/1, from right to left.
• The external flash memory port is numbered CF 0.
• The slot for WAN interface cards (WICs) and voice interface cards (VICs) is numbered slot 0. WIC
and VIC interfaces are numbered by interface with this slot number and an interface number,
beginning with 0, and running from right to left.
• 10/100BASE-T Fast Ethernet ports are numbered Fast Ethernet 0/0 and Fast Ethernet 0/1, from right
to left.
Understanding Cisco IOS Software Basics
This section describes what you need to know about the Cisco IOS software before you configure the
router by using the command-line interface (CLI). This chapter includes the following:
• Getting Help, page 1-6
• Command Modes, page 1-7
• Undoing a Command or Feature, page 1-8
• Saving Configuration Changes, page 1-8
• Where to Go Next, page 1-10
95001
1
23
678
9
5
4
1RJ-21 connector 4Flash memory port 7Fast Ethernet port 0
2T1/E1 port 0 5WIC/VIC slot 8AUX port
3T1/E1 port 1 6Fast Ethernet port 1 9Console port

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Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics
Understanding Cisco IOS Software Basics
Understanding these concepts will save time as you begin to use the CLI. If you have never used
Cisco IOS software or if you need a refresher, take a few minutes to read this chapter before you proceed
to the next chapter.
Note For a comprehensive view of Cisco IOS configuration fundamentals, see the Cisco IOS Configuration
Fundamentals Configuration Guide, Release 12.4 document.
If you are already familiar with Cisco IOS software, proceed to Chapter 2, “Using the setup Command
Facility.”
Getting Help
Use the question mark (?) and arrow keys to help you enter commands:
• For a list of available commands, enter a question mark:
Router> ?
• To complete a command, enter a few known characters followed by a question mark (with no space):
Router> s?
• For a list of command variables, enter the command followed by a space and a question mark:
Router> show ?
• To redisplay a command you previously entered, press the Up arrow key. You can continue to press
the Up arrow key for more commands.

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Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics
Understanding Cisco IOS Software Basics
Command Modes
The Cisco IOS user interface involves different modes. Each command mode permits you to configure
different components on your router. The commands available at any given time depend on which mode
you are currently in. Entering a question mark (?) at the prompt displays a list of commands available
for each command mode. Table 1-1 lists the most common command modes.
Timesaver Each command mode restricts you to a subset of commands. If you are having trouble entering a
command, check the prompt, and enter the question mark (?) for a list of available commands. You might
be in the wrong command mode or using the wrong syntax.
In the following example, notice how the prompt changes after each command to indicate a new
command mode:
Router> enable
Password: <enable password>
Router# configure terminal
Router(config)# interface serial 0/0
Router(config-if)# line 0
Router(config-line)# controller T1/E1 slot/port <---See second Note below
Router(config-controller)# exit
Router(config)# exit
Router#
%SYS-5-CONFIG_I: Configured from console by console
The last message is normal and does not indicate an error. Press Enter to get the Router# prompt.
Ta b l e 1-1 Common Command Modes
Command Mode Access Method
Router Prompt
Displayed Exit Method
User EXEC Log in. Router> Use the logout
command.
Privileged EXEC From user EXEC mode,
enter the enable
command.
Router# To exit to user EXEC
mode, use the disable,
exit, or logout
command.
Global configuration From the privileged
EXEC mode, enter the
configure terminal
command.
Router (config)# To exit to privileged
EXEC mode, use the
exit or end command,
or press Ctrl-Z.
Interface configuration From the global
configuration mode,
enter the interface type
number command, such
as interface serial 0/0.
Router (config-if)# To exit to global
configuration mode, use
the exit command.
To exit directly to
privileged EXEC mode,
press Ctrl-Z.

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Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics
Upgrading to a New Cisco IOS Release
Note You can press Ctrl-Z in any mode to immediately return to enable mode (Router#), instead of entering
exit, which returns you to the previous mode.
Note In the Cisco IAD2430 series IADs, the controller port syntax is x/y, where
slot can be 0 (where 0 is the T1/E1 controller on a VWIC) or 1 (the onboard T1/E1), and
port can be 0 (the first port) or 1 (the second port).
See the “Port Numbering Conventions” section on page 1-5.
Undoing a Command or Feature
If you want to undo a command you entered or disable a feature, enter the keyword no before most
commands; for example, no ip routing.
Saving Configuration Changes
You need to enter the copy running-config startup-config command to save your configuration
changes to NVRAM, so the changes are not lost if there is a system reload or power outage. For example:
Router# copy running-config startup-config
Building configuration...
It might take a minute or two to save the configuration to NVRAM. After the configuration has been
saved, the following appears:
[OK]
Router#
Upgrading to a New Cisco IOS Release
To install or upgrade to a new Cisco IOS release, see Appendix B, “Formatting the Flash Memory.”
Note To simplify network operations and management of Cisco IOS software migration, see the Basics of a
Successful Cisco IOS Software Migration document.

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Cisco IAD2430 Series Deployment Scenarios
Cisco IAD2430 Series Deployment Scenarios
Figure 1-9 through Figure 1-9 on page 1-9 show some typical deployment scenarios for Cisco IAD2430
series IADs.
Figure 1-9 Analog FXS User Interface with Metro Ethernet Interface
Figure 1-10 T1/E1 WAN Interface with Analog FXS User Interface
IAD
RJ-21
Ethernet
Distribution
panel
88997
Cisco IAD model number:
IAD2430-24FXS
Analog
telephones
IAD
WAN T1 RJ-21
Ethernet
Analog
telephones
Distribution
panel
88998
Cisco IAD model number:
IAD2431-8FXS
IAD2431-16FXS
IAD2432-24FXS
IAD2435-8FXS

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Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics
Where to Go Next
Figure 1-11 T1/E1 WAN Interface with Analog FXS and FXO User Interfaces
Figure 1-12 T1/E1 WAN Interface with T1 Interface to PBX User Interface
Where to Go Next
Now that you have learned some Cisco IOS software basics and seen some typical deployment scenarios,
you can begin to configure the router by using the command-line interface (CLI).
Remember that:
• You can use the question mark (?) and arrow keys to help you enter commands.
• Each command mode restricts you to a set of commands. If you have difficulty entering a command,
check the prompt and then enter the question mark (?) for a list of available commands. You might
be in the wrong command mode or be using the wrong syntax.
• To disable a feature, generally enter the keyword no before the command; for example, no ip
routing.
• You need to save your configuration changes to NVRAM so that the changes are not lost if there is
a system reload or power outage.
Go to Chapter 2, “Using the setup Command Facility,” to begin configuring the router.
Cisco IAD model number:
Cisco IAD2432-24FXS
with
Cisco VIC2-4FXO interface card
IAD
WAN T1 Multiple FXS and FXO 24 FXS
voice ports
4 FXO
voice ports
Ethernet
Distribution
panel
88996
Analog
telephones
PBX
PBX
88995
IAD
WAN T1 T1
Ethernet
PBX
Cisco IAD model number:
IAD2431-1T1E1