Cisco CISCO1721 Installation guide

Cisco 1721 Router Hardware
Installation Guide
Corporate Headquarters
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Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 526-4100
Customer Order Number: DOC-7813834=
Text Part Number: 78-13834-02
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT
NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT
ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR
THEIR APPLICATION OF ANY PRODUCTS.
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PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO
LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.
The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate
radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television
reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in
part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation.
However, there is no guarantee that interference will not occur in a particular installation.
Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class
A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct
any interference to radio or television communications at your own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco
equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by
using one or more of the following measures:
• Turn the television or radio antenna until the interference stops.
• Move the equipment to one side or the other of the television or radio.
• Move the equipment farther away from the television or radio.
• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television
or radio are on circuits controlled by different circuit breakers or fuses.)
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as
part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.
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Cisco 1721 Router Hardware Installation Guide
Copyright © 2005 Cisco Systems, Inc. All rights reserved.
CONTENTS
Preface xi
Audience and Scope xi
Organization xi
Related Documentation xii
Conventions xiii
Notes, Cautions, and Warnings xiii
Commands xvi
Obtaining Documentation xvi
Cisco.com xvii
Documentation DVD xvii
Ordering Documentation xvii
Documentation Feedback xviii
Cisco Product Security Overview xviii
Reporting Security Problems in Cisco Products xix
Obtaining Technical Assistance xix
Cisco Technical Support Website xx
Submitting a Service Request xx
Definitions of Service Request Severity xxi
Obtaining Additional Publications and Information xxii
CHAPTER
1
Cisco 1721 Router Overview 1-1
Key Features 1-2
Back Panel Ports and LEDs 1-4
Front Panel LEDs 1-5
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Router Memory 1-7
Types of Memory 1-8
Amounts of Memory 1-8
Unpacking the Router 1-9
Additional Required Equipment 1-9
CHAPTER
2
Installation 2-1
Before Installing the Router 2-1
Connecting the Router to Your Local Network 2-2
Installing WICs 2-4
Safety Information 2-4
WIC Installation 2-5
Connecting Power to the Router 2-8
Verifying Your Installation 2-9
Optional Installation Steps 2-10
Connecting a PC 2-10
Connecting a Modem 2-12
Wall-Mounting 2-13
Stacking the Router 2-14
Unstacking the Router 2-17
CHAPTER
3
Troubleshooting 3-1
Contacting Your Cisco Reseller 3-1
Recovering a Lost Password 3-2
Determining the Configuration Register Value 3-2
Resetting the Router 3-4
Resetting the Password 3-6
Resetting the Configuration Register Value 3-6
Problem Solving 3-7
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OK LED Diagnostics 3-7
Troubleshooting WICs and Cables 3-8
Troubleshooting the Power System 3-10
Troubleshooting ISDN 3-11
APPENDIX
A
Technical Specifications A-1
APPENDIX
B
Cabling Specifications B-1
Ethernet Cables B-1
Ethernet Network Cabling Guidelines B-2
Console Cable and Adapter B-3
APPENDIX
C
Installing and Upgrading Memory and Virtual Private Network Modules C-1
Safety Warnings C-1
Opening the Chassis C-2
Locating Modules C-4
Installing a DIMM C-5
Installing a VPN Module C-6
Closing the Chassis C-9
APPENDIX
D
Ordering and Configuring an ISDN Line D-1
ISDN BRI Line Configuration Requirements D-1
ISDN BRI Switch Types D-2
ISDN BRI Provisioning by Switch Type D-3
Defining ISDN Service Profile Identifiers D-5
ISDN Configuration Options D-6
Snapshot Routing D-6
Dial-on-Demand Routing D-7
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Bandwidth on Demand and Dial Backup D-7
INDEX
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Preface
This section discusses the intended audience, scope, and organization of the
Cisco 1721 Router Hardware Installation Guide and defines the conventions used
to convey instructions and information.
Audience and Scope
This guide is for users who have some experience installing and maintaining
networking hardware. Cisco 1721 router users should be familiar with the
terminology and concepts of local Ethernet and wide-area networking.
This guide describes the functional and physical features of the Cisco 1721 router
and provides installation procedures, troubleshooting information, technical
specifications, and cable and connector guidelines and specifications.
Organization
This guide is organized as follows:
•
Chapter 1, “Cisco 1721 Router Overview,” describes the router features,
LEDs, and connectors.
•
Chapter 2, “Installation,” describes how to install the router by connecting
cables and power, and tells how to install WAN interface cards (WICs).
•
Chapter 3, “Troubleshooting,” describes some problems that you might have
with the router and how to solve these problems.
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Preface
Related Documentation
•
Appendix A, “Technical Specifications,” lists the physical characteristics,
environmental requirements, and power specifications for the router.
•
Appendix B, “Cabling Specifications,” describes the cables and cabling
guidelines for the router.
•
Appendix C, “Installing and Upgrading Memory and Virtual Private Network
Modules,” describes how to install or upgrade memory modules in your
router.
•
Appendix D, “Ordering and Configuring an ISDN Line,” describes how to
order and configure ISDN line so that it will operate with a Cisco 1700 Series
router.
Related Documentation
The following publications provide related information on this product:
•
The Quick Start Guide for Installing Your Cisco 1721 Router, which came
with your router, has instructions for quickly cabling and powering up the
router.
•
Cisco 1700 Router Software Configuration Guide describes some common
network scenarios and how to use the Cisco IOS command-line interface
(CLI) to configure the router in these scenarios.
•
Cisco WAN Interface Cards Hardware Installation Guide describes how to
install and configure the WICs that are supported by the Cisco 1721 router.
•
Cisco IOS command reference and configuration guides provide complete
information about all Cisco IOS CLI commands and how to use them, as well
as information on designing and configuring LANs and WANs.
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Preface
Conventions
Conventions
This guide uses the following conventions for information and instructions.
Notes, Cautions, and Warnings
Notes, cautions, and warnings use the following conventions and symbols:
Note
Caution
Warning
Waarschuwing
Means reader take note. Notes contain helpful suggestions or references to
materials not contained in this manual.
This caution symbol means reader be careful. In this situation, you might do
something that could result in equipment damage or loss of data.
This warning symbol means danger. You are in a situation that could cause
bodily injury. Before you work on any equipment, be aware of the hazards
involved with electrical circuitry and be familiar with standard practices for
preventing accidents. To see translations of the warnings that appear in this
publication, refer to the Regulatory Compliance and Safety Information
document that accompanied this device.
Dit waarschuwingssymbool betekent gevaar. U verkeert in een
situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige
apparatuur gaat werken, dient u zich bewust te zijn van de bij
elektrische schakelingen betrokken risico's en dient u op de hoogte
te zijn van standaard maatregelen om ongelukken te voorkomen.
Voor vertalingen van de waarschuwingen die in deze publicatie
verschijnen, kunt u het document Regulatory Compliance and Safety
Information (Informatie over naleving van veiligheids- en andere
voorschriften) raadplegen dat bij dit toestel is ingesloten.
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Preface
Conventions
Varoitus
Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi
johtaa ruumiinvammaan. Ennen kuin työskentelet minkään
laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä
vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista.
Tässä julkaisussa esiintyvien varoitusten käännökset löydät
laitteen mukana olevasta Regulatory Compliance and Safety
Information -kirjasesta (määräysten noudattaminen ja tietoa
turvallisuudesta).
Attention
Ce symbole d'avertissement indique un danger. Vous vous trouvez
dans une situation pouvant causer des blessures ou des dommages
corporels. Avant de travailler sur un équipement, soyez conscient
des dangers posés par les circuits électriques et familiarisez-vous
avec les procédures couramment utilisées pour éviter les
accidents. Pour prendre connaissance des traductions
d’avertissements figurant dans cette publication, consultez le
document Regulatory Compliance and Safety Information
(Conformité aux règlements et consignes de sécurité) qui
accompagne cet appareil.
Warnung
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer
Situation, die zu einer Körperverletzung führen könnte. Bevor Sie
mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der
mit elektrischen Stromkreisen verbundenen Gefahren und der
Standardpraktiken zur Vermeidung von Unfällen bewußt.
Übersetzungen der in dieser Veröffentlichung enthaltenen
Warnhinweise finden Sie im Dokument Regulatory Compliance and
Safety Information (Informationen zu behördlichen Vorschriften und
Sicherheit), das zusammen mit diesem Gerät geliefert wurde.
Avvertenza
Questo simbolo di avvertenza indica un pericolo. La situazione
potrebbe causare infortuni alle persone. Prima di lavorare su
qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai
circuiti elettrici ed essere al corrente delle pratiche standard per la
prevenzione di incidenti. La traduzione delle avvertenze riportate in
questa pubblicazione si trova nel documento Regulatory
Compliance and Safety Information (Conformità alle norme e
informazioni sulla sicurezza) che accompagna questo dispositivo.
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Preface
Conventions
Advarsel
Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som
kan føre til personskade. Før du utfører arbeid på utstyr, må du vare
oppmerksom på de faremomentene som elektriske kretser
innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder
å unngå ulykker. Hvis du vil se oversettelser av de advarslene som
finnes i denne publikasjonen, kan du se i dokumentet Regulatory
Compliance and Safety Information (Overholdelse av forskrifter og
sikkerhetsinformasjon) som ble levert med denne enheten.
Aviso
Este símbolo de aviso indica perigo. Encontra-se numa situação que
lhe poderá causar danos físicos. Antes de começar a trabalhar com
qualquer equipamento, familiarize-se com os perigos relacionados
com circuitos eléctricos, e com quaisquer práticas comuns que
possam prevenir possíveis acidentes. Para ver as traduções dos
avisos que constam desta publicação, consulte o documento
Regulatory Compliance and Safety Information (Informação de
Segurança e Disposições Reguladoras) que acompanha este
dispositivo.
¡Advertencia!
Este símbolo de aviso significa peligro. Existe riesgo para su
integridad física. Antes de manipular cualquier equipo, considerar
los riesgos que entraña la corriente eléctrica y familiarizarse con
los procedimientos estándar de prevención de accidentes. Para ver
una traducción de las advertencias que aparecen en esta
publicación, consultar el documento titulado Regulatory
Compliance and Safety Information (Información sobre seguridad y
conformidad con las disposiciones reglamentarias) que se
acompaña con este dispositivo.
Varning!
Denna varningssymbol signalerar fara. Du befinner dig i en situation
som kan leda till personskada. Innan du utför arbete på någon
utrustning måste du vara medveten om farorna med elkretsar och
känna till vanligt förfarande för att förebygga skador. Se
förklaringar av de varningar som förkommer i denna publikation i
dokumentet Regulatory Compliance and Safety Information
(Efterrättelse av föreskrifter och säkerhetsinformation), vilket
medföljer denna anordning.
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Preface
Obtaining Documentation
Commands
Table 1 describes the syntax used with the commands in this document.
Table 1
Command Syntax Guide
Convention
Description
boldface
Commands and keywords.
italic
Command input that is supplied by you.
[
Keywords or arguments that appear within square
brackets are optional.
]
{x | x | x}
A choice of keywords (represented by x) appears in
braces separated by vertical bars. You must select one.
^ or Ctrl
Represent the key labeled Control. For example, when
you read ^D or Ctrl-D, you should hold down the Control
key while you press the D key.
screen font
Examples of information displayed on the screen.
boldface screen
font
Examples of information that you must enter.
<
>
Nonprinting characters, such as passwords, appear in
angled brackets.
[
]
Default responses to system prompts appear in square
brackets.
Obtaining Documentation
Cisco documentation and additional literature are available on Cisco.com. Cisco
also provides several ways to obtain technical assistance and other technical
resources. These sections explain how to obtain technical information from Cisco
Systems.
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Preface
Obtaining Documentation
Cisco.com
You can access the most current Cisco documentation at this URL:
http://www.cisco.com/univercd/home/home.htm
You can access the Cisco website at this URL:
http://www.cisco.com
You can access international Cisco websites at this URL:
http://www.cisco.com/public/countries_languages.shtml
Documentation DVD
Cisco documentation and additional literature are available in a Documentation
DVD package, which may have shipped with your product. The Documentation
DVD is updated regularly and may be more current than printed documentation.
The Documentation DVD package is available as a single unit.
Registered Cisco.com users (Cisco direct customers) can order a Cisco
Documentation DVD (product number DOC-DOCDVD=) from the Ordering tool
or Cisco Marketplace.
Cisco Ordering tool:
http://www.cisco.com/en/US/partner/ordering/
Cisco Marketplace:
http://www.cisco.com/go/marketplace/
Ordering Documentation
You can find instructions for ordering documentation at this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm
You can order Cisco documentation in these ways:
•
Registered Cisco.com users (Cisco direct customers) can order Cisco product
documentation from the Ordering tool:
http://www.cisco.com/en/US/partner/ordering/
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Preface
Documentation Feedback
•
Nonregistered Cisco.com users can order documentation through a local
account representative by calling Cisco Systems Corporate Headquarters
(California, USA) at 408 526-7208 or, elsewhere in North America, by
calling 1 800 553-NETS (6387).
Documentation Feedback
You can send comments about technical documentation to bug-doc@cisco.com.
You can submit comments by using the response card (if present) behind the front
cover of your document or by writing to the following address:
Cisco Systems
Attn: Customer Document Ordering
170 West Tasman Drive
San Jose, CA 95134-9883
We appreciate your comments.
Cisco Product Security Overview
Cisco provides a free online Security Vulnerability Policy portal at this URL:
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.ht
ml
From this site, you can perform these tasks:
•
Report security vulnerabilities in Cisco products.
•
Obtain assistance with security incidents that involve Cisco products.
•
Register to receive security information from Cisco.
A current list of security advisories and notices for Cisco products is available at
this URL:
http://www.cisco.com/go/psirt
If you prefer to see advisories and notices as they are updated in real time, you
can access a Product Security Incident Response Team Really Simple Syndication
(PSIRT RSS) feed from this URL:
http://www.cisco.com/en/US/products/products_psirt_rss_feed.html
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Obtaining Technical Assistance
Reporting Security Problems in Cisco Products
Cisco is committed to delivering secure products. We test our products internally
before we release them, and we strive to correct all vulnerabilities quickly. If you
think that you might have identified a vulnerability in a Cisco product, contact
PSIRT:
Tip
•
Emergencies — security-alert@cisco.com
•
Nonemergencies — psirt@cisco.com
We encourage you to use Pretty Good Privacy (PGP) or a compatible product to
encrypt any sensitive information that you send to Cisco. PSIRT can work from
encrypted information that is compatible with PGP versions 2.x through 8.x.
Never use a revoked or an expired encryption key. The correct public key to use
in your correspondence with PSIRT is the one that has the most recent creation
date in this public key server list:
http://pgp.mit.edu:11371/pks/lookup?search=psirt%40cisco.com&op=index&ex
act=on
In an emergency, you can also reach PSIRT by telephone:
•
1 877 228-7302
•
1 408 525-6532
Obtaining Technical Assistance
For all customers, partners, resellers, and distributors who hold valid Cisco
service contracts, Cisco Technical Support provides 24-hour-a-day,
award-winning technical assistance. The Cisco Technical Support Website on
Cisco.com features extensive online support resources. In addition, Cisco
Technical Assistance Center (TAC) engineers provide telephone support. If you
do not hold a valid Cisco service contract, contact your reseller.
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Obtaining Technical Assistance
Cisco Technical Support Website
The Cisco Technical Support Website provides online documents and tools for
troubleshooting and resolving technical issues with Cisco products and
technologies. The website is available 24 hours a day, 365 days a year, at this
URL:
http://www.cisco.com/techsupport
Access to all tools on the Cisco Technical Support Website requires a Cisco.com
user ID and password. If you have a valid service contract but do not have a user
ID or password, you can register at this URL:
http://tools.cisco.com/RPF/register/register.do
Note
Use the Cisco Product Identification (CPI) tool to locate your product serial
number before submitting a web or phone request for service. You can access the
CPI tool from the Cisco Technical Support Website by clicking the Tools &
Resources link under Documentation & Tools. Choose Cisco Product
Identification Tool from the Alphabetical Index drop-down list, or click the
Cisco Product Identification Tool link under Alerts & RMAs. The CPI tool
offers three search options: by product ID or model name; by tree view; or for
certain products, by copying and pasting show command output. Search results
show an illustration of your product with the serial number label location
highlighted. Locate the serial number label on your product and record the
information before placing a service call.
Submitting a Service Request
Using the online TAC Service Request Tool is the fastest way to open S3 and S4
service requests. (S3 and S4 service requests are those in which your network is
minimally impaired or for which you require product information.) After you
describe your situation, the TAC Service Request Tool provides recommended
solutions. If your issue is not resolved using the recommended resources, your
service request is assigned to a Cisco TAC engineer. The TAC Service Request
Tool is located at this URL:
http://www.cisco.com/techsupport/servicerequest
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Obtaining Technical Assistance
For S1 or S2 service requests or if you do not have Internet access, contact the
Cisco TAC by telephone. (S1 or S2 service requests are those in which your
production network is down or severely degraded.) Cisco TAC engineers are
assigned immediately to S1 and S2 service requests to help keep your business
operations running smoothly.
To open a service request by telephone, use one of the following numbers:
Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227)
EMEA: +32 2 704 55 55
USA: 1 800 553-2447
For a complete list of Cisco TAC contacts, go to this URL:
http://www.cisco.com/techsupport/contacts
Definitions of Service Request Severity
To ensure that all service requests are reported in a standard format, Cisco has
established severity definitions.
Severity 1 (S1)—Your network is “down,” or there is a critical impact to your
business operations. You and Cisco will commit all necessary resources around
the clock to resolve the situation.
Severity 2 (S2)—Operation of an existing network is severely degraded, or
significant aspects of your business operation are negatively affected by
inadequate performance of Cisco products. You and Cisco will commit full-time
resources during normal business hours to resolve the situation.
Severity 3 (S3)—Operational performance of your network is impaired, but most
business operations remain functional. You and Cisco will commit resources
during normal business hours to restore service to satisfactory levels.
Severity 4 (S4)—You require information or assistance with Cisco product
capabilities, installation, or configuration. There is little or no effect on your
business operations.
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Obtaining Additional Publications and Information
Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is
available from various online and printed sources.
•
Cisco Marketplace provides a variety of Cisco books, reference guides, and
logo merchandise. Visit Cisco Marketplace, the company store, at this URL:
http://www.cisco.com/go/marketplace/
•
Cisco Press publishes a wide range of general networking, training and
certification titles. Both new and experienced users will benefit from these
publications. For current Cisco Press titles and other information, go to Cisco
Press at this URL:
http://www.ciscopress.com
•
Packet magazine is the Cisco Systems technical user magazine for
maximizing Internet and networking investments. Each quarter, Packet
delivers coverage of the latest industry trends, technology breakthroughs, and
Cisco products and solutions, as well as network deployment and
troubleshooting tips, configuration examples, customer case studies,
certification and training information, and links to scores of in-depth online
resources. You can access Packet magazine at this URL:
http://www.cisco.com/packet
•
iQ Magazine is the quarterly publication from Cisco Systems designed to
help growing companies learn how they can use technology to increase
revenue, streamline their business, and expand services. The publication
identifies the challenges facing these companies and the technologies to help
solve them, using real-world case studies and business strategies to help
readers make sound technology investment decisions. You can access iQ
Magazine at this URL:
http://www.cisco.com/go/iqmagazine
•
Internet Protocol Journal is a quarterly journal published by Cisco Systems
for engineering professionals involved in designing, developing, and
operating public and private internets and intranets. You can access the
Internet Protocol Journal at this URL:
http://www.cisco.com/ipj
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Obtaining Additional Publications and Information
•
World-class networking training is available from Cisco. You can view
current offerings at this URL:
http://www.cisco.com/en/US/learning/index.html
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C H A P T E R
1
Cisco 1721 Router Overview
This chapter introduces the Cisco 1721 router, also referred to in this guide as the
router, and covers the following topics:
•
Key Features
•
Back Panel Ports and LEDs
•
Front Panel LEDs
•
Router Memory
•
Unpacking the Router
•
Additional Required Equipment
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Cisco 1721 Router Overview
Key Features
Key Features
The Cisco 1721 router (see Figure 1-1) is a small, modular desktop router that
links small- to medium-size remote Ethernet and Fast Ethernet LANs over one to
four WAN connections to regional and central offices. Table 1-1 lists the key
features of the router.
Cisco 1721 Router
12154
Figure 1-1
PWR
WIC0
ACT/C
WI
H0 AC C1
T/CH0
ETH
ACT
OK
ACT/C
H1 AC
T/C
H1
COL
Cisco
1700
SER
IES
RO UT
ER
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Key Features
Table 1-1
Key Features
Feature
One Fast Ethernet
(10/100BASE-TX) port
Two Cisco WAN interface card
(WIC) slots
Description
•
Operates in full- or half-duplex mode (with manual
override available).
•
Supports autosensing for 10- or 100-Mbps operation.
•
Supports IEEE 802.1Q VLAN encapsulation.
•
Supports a combination of any two of the following WICs:
ISDN BRI, 56-kbps DSU/CSU, FT1/T1 DSU/CSU,
high-speed serial, dual-serial, ADSL, G.SHDSL, and
Ethernet.
•
The WAN interface configuration can be changed as your
network requirements change.
Console port
Supports router configuration and management with a
directly-connected terminal or PC. Supports up to 115.2 kbps.
Auxiliary port
Supports modem connection to the router, which can be
configured and managed from a remote location. Supports up to
115.2 kbps.
VPN hardware-assisted 3DES
encryption module
Provides IPSEC DES and 3DES hardware encryption.
SNMP support
Router can be managed over a network using Simple Network
Management Protocol (SNMP).
AutoInstall support
Configuration files can be easily downloaded to the router over
a WAN connection.
Kensington security slot
Router can be secured to a desktop or other surface using
Kensington lockdown equipment.
Cisco ConfigMaker support
You can set up networks that include the Cisco 1721 router
using the Cisco ConfigMaker application, a wizards-based
software tool that helps you easily configure and address Cisco
routers, access servers, hubs, switches, and networks.
Support for Cisco IOS software
features
Supports IP, IPX, AppleTalk, IBM, Open Shortest Path First
(OSPF), NetWare Link Services Protocol (NLSP), Resource
Reservation Protocol (RSVP), encryption, network address
translation, and the Cisco IOS Firewall Feature Set.
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Back Panel Ports and LEDs
Back Panel Ports and LEDs
This section describes the router back panel ports and LEDs, which are shown in
Figure 1-2 and described in Table 1-2 and Table 1-3.
Figure 1-2
Back Panel Ports and LEDs
Kensington-compatible
locking socket
Console port
WIC 0 slot
WIC 1 slot
Power switch
CD
AL
LP
RD
TD
CONSOLE
DSU
56K
Model
Cisco 1721
WIC 0 OK
FDX 100 LINK
WIC 0
OK LED
10/100 ETHERNET
10/100-Mbps
Ethernet port
FDX/100/
LINK LEDs
Table 1-2
AUX
Auxiliary port
MOD OK WIC 1 OK
MOD OK
LED
WIC 1 OK
LED
+5, +12, -12 VDC
65524
SEE MANUAL BEFORE INSTALLATION
Power
socket
Back Panel Connectors
Connector/Slot
Label/Color
Description
Ethernet port
10/100
ETHERNET
(yellow)
Connects the router to the local Ethernet network
through this port. This port autosenses the speed
(10 Mbps or 100 Mbps) and duplex mode (full- or half-)
of the device to which it is connected and then operates
at the same speed and in the same duplex mode.
Auxiliary port
AUX
(black)
Connects to a modem for remote configuration with
Cisco IOS software.
Console port
CONSOLE
(blue)
Connects to a terminal or PC for local configuration
using Cisco IOS software.
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Front Panel LEDs
Table 1-2
Back Panel Connectors (continued)
Connector/Slot
Label/Color
Description
WIC slot 0
(WIC0)
No label
Supports one Cisco WIC. For detailed information, refer
to the Cisco WAN Interface Cards Hardware Installation
Guide, which comes with every card.
WIC slot 1
(WIC1)
No label
Supports one Cisco WIC. For detailed information, refer
to the Cisco WAN Interface Cards Hardware Installation
Guide, which comes with every card.
Use the back panel LEDs during router installation to confirm that you have
correctly connected all the cables to the router.
Table 1-3
Back Panel LEDs
LED Label
Color
Description
WIC0 OK
Green
On when a WIC is correctly inserted in the card slot.
FDX
Green
On solid—Ethernet port is operating in full-duplex mode.
Off—Ethernet port is operating in half-duplex mode.
100
Green
On solid—Ethernet port is operating at 100 Mbps.
Off—Ethernet port is operating at 10 Mbps.
LINK
Green
On when the Ethernet link is up.
MOD OK
Green
On when the VPN hardware encryption module is installed and
recognized by the IOS.
WIC1 OK
Green
On when a WIC is correctly inserted in the card slot.
Front Panel LEDs
Use the router front panel LEDs to determine network activity and status on the
Ethernet port and on the WIC ports. The front panel LEDs are illustrated in
Figure 1-3 and described in Table 1-4.
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Front Panel LEDs
Front Panel LEDs
WIC0
Table 1-4
WIC1
ETH
PWR
ACT/CH0 ACT/CH0
ACT
OK
ACT/CH1 ACT/CH1
COL
65537
Figure 1-3
Front Panel LEDs
LED Label
Color
Description
PWR
Green
On means that DC power is being supplied to the router.
OK
Green
On means that the router has successfully booted up and the software is
functional. This LED blinks during the power-on self-test (POST).
See the section “OK LED Diagnostics” in Chapter 3,
“Troubleshooting,” for information on how to use this LED for router
diagnostics.
WIC0
ACT/CH0
Green
Serial and DSU/CSU cards—Blinks when data is being sent to or
received from the port on the card in the WIC0 slot.
ISDN cards—On solid when the first ISDN B channel is up for the card
in the WIC0 slot.
2-port serial cards—Blinks when data is being sent to or received from
the first port on the 2-port card in the WIC0 slot.
ACT/CH1
Green
Serial and CSU/DSU cards—Remains off.
ISDN cards—On solid when the second ISDN B channel is up for the
card in the WIC0 slot
2-port serial cards—Blinks when data is being sent to or received from
the second port on the 2-port card in the WIC0 slot.
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Router Memory
Table 1-4
LED Label
Front Panel LEDs (continued)
Color
Description
Green
Serial and DSU/CSU cards—Blinks when data is being sent to or
received from the port on the card in the WIC1 slot.
WIC1
ACT/CH0
ISDN cards—On solid when the first ISDN B channel is up for the card
in the WIC1 slot.
2-port serial cards—Blinks when data is being sent to or received from
the first port on the 2-port card in the WIC1 slot.
ACT/CH1
Green
Serial and DSU/CSU cards—Remains off.
ISDN cards—On solid when the second ISDN B channel is up for the
card in the WIC1 slot.
2-port serial cards—Blinks when data is being sent to or received from
the second port on the 2-port card in the WIC1 slot.
ETH
ACT
Green
Blinks when there is network activity on the Ethernet port.
COL
Yellow
Blinks when there are packet collisions on the local Ethernet network.
Router Memory
This section describes the types of memory stored in the router and how to find
out how much of each type of memory is stored in the router.
For instruction on how to upgrade memory in the router, see Appendix C,
“Installing and Upgrading Memory and Virtual Private Network Modules.”
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Router Memory
Types of Memory
The Cisco 1721 router has the following types of memory:
•
Dynamic random-access memory (DRAM)—This is the main storage
memory for the router. DRAM is also called working storage. It contains the
dynamic configuration information. The Cisco 1721 router stores a working
copy of the Cisco IOS software, dynamic configuration information, and
routing table information in DRAM.
•
Nonvolatile random-access memory (NVRAM)—This type of memory
contains a backup copy of your configuration. If the power is lost or the router
is turned off, this backup copy enables the router to return to operation
without reconfiguration.
•
Flash memory—This special kind of erasable, programmable memory
contains a copy of the Cisco IOS software. The Flash memory structure can
store multiple copies of the Cisco IOS software. You can load a new level of
the operating system in every router in your network and then, when
convenient, upgrade the whole network to the new level.
Amounts of Memory
Use the show version command to view the amount of DRAM, NVRAM, and
Flash memory stored in your router. The following example of the show version
command output displays the amount of memory in this router.
1721# show version
Cisco Internetwork Operating System Software
IOS (tm) C1700 Software (C1700-K9SY-M), Version 12.2(4)YA EARLY
DEPLOYMENT RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Mon 14-Jan-02 16:34 by ramesh
Image text-base: 0x80008108, data-base: 0x80BC77E8
ROM: System Bootstrap, Version 12.2(7r)XM1, RELEASE SOFTWARE (fc1)
1721 uptime is 4 days, 23 hours, 54 minutes
System returned to ROM by reload
Running default software
cisco 1721 (MPC860P) processor (revision 0x101) with 36864K/12288K
bytes of memory.
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Unpacking the Router
Processor board ID VEN0539000D (3033334544), with hardware revision
0000
MPC860P processor: part number 5, mask 2
Bridging software.
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
1 FastEthernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 Virtual Private Network (VPN) Modules(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
Configuration register is 0x0
Unpacking the Router
Table 1-5 lists the items that come with your router. All these items are in the
accessory kit that is inside the box that your router came in.
Table 1-5
Router Box Contents
•
Power cord (black)
•
Power supply
•
DB-25 to DB-9 adapter
•
Console cable, RJ-45 to DB-9 (light blue)
•
Product documentation
Additional Required Equipment
Depending on your local network and on which Cisco WICs you install in your
router, you will require other items, listed in Table 1-6, to complete your router
installation.
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Additional Required Equipment
Table 1-6
Additional Required Equipment
Equipment
When You Use It
Ethernet hub
A hub connects pieces of network equipment (including the
Cisco 1721 router) to create a network. You can use a 10-, 100-, or
10/100-Mbps hub with the Cisco 1721 router.
Ethernet switch
A switch connects pieces of network equipment (including the
Cisco 1721 router) to create a network. You can use a 10-, 100-, or
10/100-Mbps switch with the Cisco 1721 router.
Phillips screwdriver
Although the WICs use thumbscrews, you might need a Phillips
screwdriver to loosen the WIC slot cover.
Cisco WIC
In order to make a WAN connection, the Cisco 1721 router must
have a supported WIC installed. The router supports up to two
cards. You can order the cards when you order the router, and they
will be installed for you. Or, you can order the cards separately, after
you receive the router, and then install them yourself.
Straight-through RJ-45-to-RJ-45 This cable connects the router to the Ethernet LAN and connects the
cable
WICs to various WAN services, including ISDN, T1/FT1, and
56-kbps services. You will need one cable for each connection that
requires this cable type.
Serial cable
This cable connects a serial card to serial services. You must order
this cable from Cisco. For detailed information about serial cable
types, refer to the Cisco WAN Interface Cards Hardware
Installation Guide, which comes with every card.
NT-1
Some ISDN service providers require a Network Termination 1
(NT-1) device to connect an ISDN S/T port to the ISDN line.
Asynchronous modem
Connect a modem to the AUX port on the router when you want to
configure the router from a remote location.
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C H A P T E R
2
Installation
This chapter provides procedures for installing the Cisco 1721 router and includes
the following sections:
•
Before Installing the Router
•
Connecting the Router to Your Local Network
•
Installing WICs
•
Connecting Power to the Router
•
Verifying Your Installation
•
Optional Installation Steps
Before Installing the Router
The Cisco 1721 router is shipped ready for desktop mounting. Before making the
power and network connections, simply set the router on a desktop, shelf, or other
flat surface.
Note
For instructions on wall-mounting the router, see the “Wall-Mounting” section
later in this chapter.
Be sure to read the safety information in the Regulatory Compliance and Safety
Information for Cisco 1700 Routers document that came with your router.
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Installation
Connecting the Router to Your Local Network
Warning
Read the installation instructions before you connect the system to its power
source.
Warning
Do not work on the system or connect or disconnect cables during periods
of lightning activity.
Caution
Do not place anything on top of the router that weighs more than 10 pounds
(4.5 kg). Excessive weight on top of the router could damage the chassis.
Connecting the Router to Your Local Network
The Cisco 1721 router is connected to your local Ethernet network through the
yellow 10/100 Ethernet port. You must provide the following items for this
connection:
•
A straight-through, RJ-45-to-RJ-45, Ethernet cable
•
A 10/100-Mbps Ethernet hub or switch
Warning
The ports labeled 10/100 ETHERNET and CONSOLE are safety extra-low
voltage (SELV) circuits. SELV circuits should only be connected to other
SELV circuits. Because BRI circuits are treated like telephone-network
voltage, avoid connecting the SELV circuits to the telephone network
voltage (TNV) circuits. (To see translated versions of this warning, refer to
the Regulatory Compliance and Safety Information for Cisco 1700 Routers
document that came with the router.)
Caution
Always connect the Ethernet cable to the yellow ports on the router. Do not
connect the cable to an ISDN S/T or U port (on a WIC) or to an NT-1 that is
connected to a WIC. Accidentally connecting the cable to the wrong port can
damage your router.
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Connecting the Router to Your Local Network
Follow these steps to connect the router to the local network:
Connect one end of the cable to the yellow Ethernet port (labeled
10/100 ETHERNET), as shown in Figure 2-1.
RD
SEE
21
LP
TD
Model
Cisco
17
Connecting the Router to the Local Network
MAN
UAL
AL
Figure 2-1
BEF
ORE
CD
Step 1
INST
ALLATIO
N
DSU
56K
WIC
0O
CONS
OLE
K
FDX
100
LINK
10/10
0 ET
HERN
ET
AUX
MOD
OK
WIC1O
K
+5, +1
10/100
Ethernet port
2, -12
VDC
Ethernet hub or switch
(10, 100, or 10/100 Mbps)
AUI
7
6
5
4
3
2
1
65525
8
Straight-through
Ethernet cable
Step 2
Connect the other end of the cable to a network port on the hub or switch.
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Chapter 2
Installation
Installing WICs
Installing WICs
The Cisco 1721 router supports one or two Cisco WAN interface cards (WICs).
Each card has one or two WAN ports. This section describes the general procedure
for installing a card in the Cisco 1721 router.
Note
For details on specific WICs, how to connect the card to the WAN line, and
how to configure the interface with Cisco IOS software, refer to the
Cisco WAN Interface Cards Hardware Installation Guide that came with the
card(s).
Safety Information
This section lists safety warnings that you should be aware of before installing
WICs in the router.
Warning
Only trained and qualified personnel should be allowed to install or replace
this equipment. (To see translated versions of this warning, refer to the
Regulatory Compliance and Safety Information for Cisco 1700 Routers
document that came with the router.)
Warning
Before working on equipment that is connected to power lines, remove
jewelry (including rings, necklaces, and watches). Metal objects will heat
up when connected to power and ground and can cause serious burns or
weld the metal object to the terminals. (To see translated versions of this
warning, refer to the Regulatory Compliance and Safety Information for
Cisco 1700 Routers document that came with the router.)
Warning
Do not work on the system or connect or disconnect cables during periods
of lightning activity. (To see translated versions of this warning, refer to the
Regulatory Compliance and Safety Information for Cisco 1700 Routers
document that came with the router.)
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Installing WICs
Caution
Do not connect a WAN cable to the card until you have completed the
installation procedure.
WIC Installation
This section describes how to install WICs in the router.
Installing the Cards in Correct Sequence
The Cisco 1721 router discovers interfaces on WICs installed in the WIC0 slot
before it discovers those installed in the WIC1 slot. This can affect your router
configuration. This section describes how to ensure that your existing router
configuration is not affected when you install WICs.
If you are installing a WIC in the router for the first time, install the card in the
WIC0 slot to ensure that your software configuration will not be affected if you
install a second card at a later time.
If you are installing a second WIC in a Cisco 1721 that has a card installed in the
WIC1 slot, follow this general procedure to prevent having to reconfigure your
router:
Caution
Read the instructions in the following section, “Installing the Cards,” before
you install the cards.
Step 1
Remove the installed card from the WIC1 slot.
Step 2
Reinstall the card (removed in Step 1) in the WIC0 slot.
Step 3
Install the new card in the WIC1 slot.
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Chapter 2
Installation
Installing WICs
Installing the Cards
Follow these steps to install the card in a Cisco 1721 router:
Make sure that the power switch is set to the STANDBY position ( ) and that
the power cable is not connected to the power socket on the rear panel.
Step 1
Power must be removed from the system prior to installing or removing WICs
to avoid damaging them. When WICs are pushed into or pulled out of a router
that is powered up, there is a very good chance that they could be damaged
electrically and will no longer function.
Caution
Loosen the thumbscrews on the WIC slot cover on the rear panel, as shown in
Figure 2-2, and then remove the slot cover. You should be able to loosen the
screws using your fingers; however, if the screws are very tight, you might need
to use a Phillips screwdriver.
Step 2
Removing the WIC Slot Cover
65526
Figure 2-2
Mode
Cisco l
1721
WIC
CONS
OLE
0 OK
FDX
100
LINK
10/100
ETHE
RNET
AUX
WAN interface card slot cover
MOD
OK
WIC1O
K
+5, +1
2, -1
2 VD
C
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Installing WICs
Hold the WIC by the edges on either side of the card front panel, and line up the
card edges with the guides inside the card slot, as shown in Figure 2-3.
Step 3
Inserting a WIC in the Router
65527
Figure 2-3
Mode
l
Cisco
1721
WIC
CONS
0 OK
OLE
FDX
100
LINK
10/100
ETHE
RNET
AL BE
FORE
CD
MANU
AL
TD
RD
SEE
LP
AUX
Guides
INSTAL
LATION
MOD
OK
WIC1O
K
+5, +1
DSU
56K
2, -1
2 VD
C
WAN interface card
Step 4
Insert the card in the slot and gently push it into the router until the front panel of
the card is flush with the rear panel of the router.
Step 5
Tighten the screws.
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Chapter 2
Installation
Connecting Power to the Router
Connecting Power to the Router
Read the following warnings before connecting the router to power.
Warning
The power supply is designed to work with TN power systems.
Warning
This product relies on the building’s installation for short-circuit
(overcurrent) protection. Ensure that a fuse or circuit breaker no larger than
120VAC, 15AU.S. (240VAC, 16A international) is used on the phase
conductors (all current-carrying conductors).
Warning
This equipment is intended to be grounded. Ensure that the host is
connected to earth ground during normal use.
Take the following steps to connect power to the router and to turn the router on:
Step 1
Connect the attached power-supply cord to the power socket (labeled +5, +12,
-12 VDC) on the router rear panel, as shown in Figure 2-4.
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Verifying Your Installation
Connecting the Power Supply
RD
MAN
UAL
CD
SEE
LP
TD
Model
Cisco
17
AL
65530
Figure 2-4
BEF
ORE
INST
ALLATIO
N
21
DSU
56K
WIC
0OK
CONS
OLE
FDX
100
LINK
10/10
0 ET
HERN
ET
AUX
MOD
OK
WIC1O
K
+5, +1
2, -1
2 VD
C
Power socket
Power supply
Step 2
Connect one end of the separate power cord to the socket on the power supply.
Step 3
Connect the other end of the separate power cord to a power outlet.
Step 4
Press the router power switch to ON ( | ).
Step 5
Confirm that the router has power by checking that the PWR LED on the front
panel is on.
Verifying Your Installation
You can verify that you have correctly installed the router by checking the
following LEDs:
•
PWR (front panel)—On when power is being supplied to the router.
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Optional Installation Steps
•
OK (front panel)—On when the router software is loaded and functional.
Blinking means that the router is performing a power-on self-test (POST).
•
WIC0/WIC1 OK (back panel)—On when a WIC is correctly installed in the
corresponding WIC slot.
•
ETH ACT (front panel)—Blinking when there is network traffic on the local
10/100 Ethernet LAN.
•
WIC0ACT or WIC1 ACT (front panel)—Varies, depending on the WIC
installed. Refer to Table 1-4 in Chapter 1, “Cisco 1721 Router Overview.”
•
LINK (back panel)—On when the router is correctly connected to the local
Ethernet LAN through the 10/100 ETHERNET port.
•
MOD OK (back panel)—On when the VPN hardware encryption module is
installed and recognized by the IOS.
Optional Installation Steps
This section describes some installation steps that you might or might not use,
depending on your site and on how you are configuring the router. This section
describes the following procedures:
•
Connecting a PC
•
Connecting a Modem
•
Wall-Mounting
•
Stacking the Router
•
Unstacking the Router
Connecting a PC
If you want to configure the router by using the Cisco IOS command-line
interface, you must connect the router console port to a terminal or PC. The cable
and adapter required for this connection are included with the router.
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Optional Installation Steps
To configure the router by using a PC, the PC must have some type of terminal
emulation software installed. The software should be configured with the
following parameters: 9600 baud, 8 data bits, no parity bits, 1 stop bit. Refer to
the Cisco 1700 Router Software Configuration Guide that came with your router
for detailed information about configuring the router using Cisco IOS software.
Follow these steps to connect the router to a terminal or PC:
Connect the blue console cable to the blue console port on the back of the router,
as shown in Figure 2-5.
Step 1
Connecting the Console Cable to the Router
MANUA
L BEF
ORE
CD
RD
SEE
WIC
LP
TD
Mode
Cisco l
1721
AL
65528
Figure 2-5
INSTAL
DSU
56K
LATION
CONS
OLE
0 OK
FDX
100
LINK
10/100
ETHE
RNET
AUX
MOD
OK
WIC1O
K
+5, +1
2, -1
Blue console cable
2 VD
C
Console port
To PC or terminal
Step 2
Connect the DB-9 end of the console cable to the console port (also called the
serial port) on your PC. If this adapter does not fit your PC console port, you
must provide an adapter that fits.
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Chapter 2
Installation
Optional Installation Steps
Connecting a Modem
When a modem is connected to the auxiliary port, a remote user can dial into the
router and configure it. You can use the blue console cable that came in the
accessory kit.
Follow these steps to connect a modem to the router, using the console cable:
Step 1
Connect the RJ-45 end of the cable to the black AUX port on the back of the
router, as shown in Figure 2-6.
WIC
65529
LP
RD
SEE
21
MAN
UAL
BEF
ORE
CD
Model
Cisco
17
Connecting a Modem to the Router
AL
TD
Figure 2-6
INST
ALLATIO
DSU
56K
N
CONS
OLE
0 OK
FDX
100
LINK
10/10
0 ET
HERN
ET
AUX
MOD
OK
WIC1O
K
+5, +1
2, -12
VDC
AUX port (RJ-45)
Modem
Console cable
DB-9-to-DB-25 adapter
Step 2
Connect the DB-9 end of the cable to the DB-9 end of the DB-9-to-DB-25 adapter.
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Step 3
Connect the DB-25 end of the adapter to the modem.
Wall-Mounting
The Cisco 1721 router can be wall-mounted using two number six, 3/4-inch
screws and the molded mounting brackets on the bottom of the hub, as shown in
Figure 2-7. You must provide the screws. We recommend using pan-head or
round-head screws.
Figure 2-7
Wall-Mount Brackets—Bottom of Router
Front panel of router
Mounting
bracket
Bottom
of router
Mounting
bracket
3.75"
(9.52 cm)
Mounting
bracket
12016
Mounting
bracket
To mount the router on a wall or other surface:
Step 1
Install the two screws 3.75 inches (9.52 centimeters) horizontally apart on a wall
or other vertical surface.
The screws should protrude 0.25 inch (0.64 centimeter) from the surface of the
wall.
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Optional Installation Steps
Step 2
Caution
Hang the router on the screws with either the left side or right side mounting
brackets so that
•
The LEDs are visible to the user—Because the LEDs indicate the router
operating status, they need to be easily visible.
•
The power supply does not hang from its cable—If the power supply is not
supported, it might disconnect from the cable that connects it to the router.
If you install the screws in drywall, use hollow wall anchors (1/8 inch
by 5/16 inch) to secure the screws. If the screws are not properly anchored, the
strain of the cables connected to the router rear-panel connectors could pull the
router from the wall.
Stacking the Router
You can stack one Cisco 1721 router in a four-device stack, along with other Cisco
products designed to be stacked with the router. You can stack each device directly
on top of another device.
Note
The Cisco 1721 router is not shipped with the stacking equipment described
in this section; however, the equipment is included with all other Cisco
products that are designed to be stacked.
Each Cisco product designed to be stacked with the router comes with a stacking
clip and a fastener for keeping the multiple devices together in a stack. Before you
stack the devices, assemble the clip and fastener as shown in Figure 2-8.
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Optional Installation Steps
Figure 2-8
Assembling Stacking Clip and Fastener
H11542
Push plastic fastener
through small hole
at the end of the
stacking clip.
After assembling the clip and fastener, follow these steps to to stack the router
with another device:
Step 1
Place the clip on top of the lower device, as shown in Figure 2-9. Slide the clip
forward so that the front tabs slide into the vent slots. Make sure that the rear
hooks fit over the edge of the lower device.
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Optional Installation Steps
Figure 2-9
Stacking the Router
WIC
MAN
UAL
BEFO
RE INST
ALLA
TION
CD
RD
SEE
21
LP
TD
Model
Cisco
17
AL
Bottom of router
DSU
56K
CONS
OLE
0OK
FDX
100
LINK
10/10
0 ET
HERN
ET
AUX
MOD
OK
WIC1
OK
Front
tabs
2, -12
VDC
Plastic
fastener
65531
+5, +1
SPEE
100B D
LED
aseT
X
10Ba
seT SOLID
BLIN
K
1 2
3 4
5 6
7 8
5X
6X
7X
Rear
hooks
8X
Back panel of
lower hub
MDI
MDI-X
Rear
hooks
Step 2
Position the router onto the clips so that the rear hooks fit over the edge of the
router.
Step 3
Snap the router to the clip by pushing it down. Make sure that the plastic fastener
fits into the bottom of the router.
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Optional Installation Steps
Unstacking the Router
Follow these steps to unstack the router from another device:
Press up on the tab over the center of the lower device to release the clip from the
vent, as shown in Figure 2-10.
Step 1
Figure 2-10 Unstacking the Router
3
WIC
MAN
UAL
BEF
ORE
CD
RD
SEE
21
LP
TD
Model
Cisco
17
AL
2
INSTAL
LATION
DSU
56K
CONS
OLE
0OK
FDX
100
LINK
65532
10
10/10
/100
0 ET
ET
HERN
HE
RNET
ET
AUX
1
MOD
OK
WIC1O
K
+5, +1
2, -1
2 VD
SPEE
100B D
LED
aseT
X
10Ba
seT SOLID
BLIN
K
C
1 2
3 4
5 6
7 8
5X
6X
7X
8X
MDI
MDI-X
Step 2
Slide the clip and router toward you.
Step 3
Use both hands to lift the router and the stacking clip off the lower device.
Afterward, remove the clip from the bottom of the router.
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Optional Installation Steps
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C H A P T E R
3
Troubleshooting
Use the information in this chapter to help isolate problems you might encounter
with the Cisco 1721 router or to rule out the router as the source of the problem.
This appendix contains the following sections:
•
Contacting Your Cisco Reseller
•
Recovering a Lost Password
•
Problem Solving
Contacting Your Cisco Reseller
If you cannot locate the source of a problem, contact your local reseller for advice.
Before you call, you should have the following information ready:
•
Chassis type and serial number
•
Maintenance agreement or warranty information
•
Type and version number of the Cisco IOS installed on your router
•
Date you received the router
•
Brief description of the problem
•
Brief description of the steps you have taken to isolate the problem
•
Output from the show tech-support command
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Recovering a Lost Password
Recovering a Lost Password
This section describes how to recover a lost enable password and how to enter a
new enable secret password.
Password recovery consists of the following major processes:
•
Determining the Configuration Register Value
With this process, you determine the configuration of the router, so that you
may restore the configuration after the password is recovered.
•
Resetting the Router
With this process, you reconfigure the router to its intial startup
configuration. You then display the enable password, if one is used.
•
Resetting the Password
If you are using an enable secret password, you enter a new password with
this process. You then restore the router to its prior configuration.
•
Resetting the Configuration Register Value
If you are using an enable password, you use this process to restore the router
to its prior configuration.
Note
See the “Hot Tips” section on Cisco.com for additional information on
replacing enable secret passwords.
Determining the Configuration Register Value
Follow these steps to determine the configuration register value:
Step 1
Connect an ASCII terminal or a PC running a terminal-emulation program to the
console port on the router. See the “Connecting a PC” section in Chapter 2,
“Installation.”
Step 2
Configure the terminal to operate at 9600 baud, 8 data bits, no parity, 1 stop bit
and no flow control.
Step 3
Reboot the router by pressing the power switch to the off ( 0 ) position and then
to the on ( | ) position.
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Recovering a Lost Password
Step 4
At the user EXEC prompt (Router>), enter the show version command to
display the existing configuration register value (shown at the end of this example
output):
Router> show version
Cisco Internetwork Operating System Software
IOS (tm) C1700 Software (C1700-K9SY-M), Version 12.2(4)YA EARLY
DEPLOYMENT RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Mon 14-Jan-02 16:34 by ramesh
Image text-base: 0x80008108, data-base: 0x80BC77E8
ROM: System Bootstrap, Version 12.2(7r)XM1, RELEASE SOFTWARE (fc1)
1721 uptime is 4 days, 23 hours, 54 minutes
System returned to ROM by reload
Running default software
cisco 1721 (MPC860P) processor (revision 0x101) with 36864K/12288K
bytes of memory.
Processor board ID VEN0539000D (3033334544), with hardware revision
0000
MPC860P processor: part number 5, mask 2
Bridging software.
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
1 FastEthernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 Virtual Private Network (VPN) Modules(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
Configuration register is 0x0
Step 5
Record the setting of the configuration register. It is usually 0x0.
Step 6
Record the break setting, as given by bit 8 of the configuration register.
•
Break enabled—Bit 8 is set to 0.
•
Break disabled (default setting)—Bit 8 is set to 1.
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Recovering a Lost Password
Resetting the Router
Follow these steps to reset the router:
Step 1
Step 2
Do one of the following:
•
If break is enabled, go to Step 2.
•
If break is disabled, turn off the router, wait 5 seconds, and turn it on again.
Within 60 seconds, press the Break key. The terminal displays the
ROM monitor prompt. Go to Step 3.
Note
Some terminal keyboards have a key labeled Break. If your keyboard
does not have a Break key, refer to the documentation that came with
the terminal for instructions on how to send a break. To send a break
in Windows HyperTerminal, enter Ctrl-Break.
Send a break. The terminal displays the following prompt:
rommon 2>
Step 3
Enter confreg 0x142 to reset the configuration register:
rommon 2> confreg 0x142
Step 4
Initialize the router by entering the reset command:
rommon 2> reset
The router resets, and the configuration register is set to 0x142. The router boots
the system image in Flash memory and displays the following:
--- System Configuration Dialog ---
Step 5
Enter no in response to the prompts until the following message is displayed:
Press RETURN to get started!
Step 6
Press Return. The following prompt appears:
Router>
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Recovering a Lost Password
Step 7
Enter the enable command to enter privileged EXEC mode. Configuration
changes can be made only in this mode.
Router> enable
The prompt changes to the privileged EXEC prompt:
Router#
Step 8
Enter the show startup-config command to display an enable password in the
configuration file:
Router# show startup-config
If you are using an enable password, it will appear in the startup configuration.
Write down the password and keep the record secure.
If you are using a secret enable password, there will be no enable password in the
startup configuration.
Step 9
Enter the copy startup-config running-config command to return to your startup
configuration:
Router# copy startup-config running-config
If you are recovering an enable password, skip the next section, “Resetting the
Password,” and complete the password recovery process by performing the steps
in the “Resetting the Configuration Register Value” section.
If you are resetting an enable secret password, you will not see it displayed in the
show startup-config command output. Complete the password recovery process
by performing the steps in the “Resetting the Password” section, which follows.
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Recovering a Lost Password
Resetting the Password
Follow these steps to reset an enable secret password and restore the configuration
of the router:
Step 1
Enter the configure terminal command to enter configuration mode:
Router# configure terminal
Step 2
Enter the enable secret command to reset the enable secret password in the
router:
Router(config)# enable secret <gobbledegook>
Step 3
Enter the config-register command and the original configuration register value
that you recorded in Step 5 in the “Determining the Configuration Register Value”
section on page 3-2.
Step 4
Press Ctrl-Z to exit configuration mode.
Router(config)# Ctrl-Z
Step 5
Save your configuration changes:
Router# copy running-config startup-config
Step 6
Reboot the router, and enter the enable secret password.
Resetting the Configuration Register Value
Follow these steps to restore the configuration of the router after you have
recovered an enable password:
Step 1
Enter the configure terminal command to enter configuration mode:
Router# configure terminal
Step 2
Enter the config-register command and the original configuration register value
that you recorded in Step 5 in the “Determining the Configuration Register Value”
section on page 3-2.
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Problem Solving
Step 3
Press Ctrl-Z to exit configuration mode:
Router(config)# Ctrl-Z
Step 4
Reboot the router, and enter the recovered enable password.
Problem Solving
The key to problem solving is to isolate the problem to a specific subsystem by
comparing what the router is doing to what it should be doing.
In problem solving, consider the following subsystems of the router:
•
WICs—Refer to the LEDs on the cards and the LEDs on the router front panel
to help identify a failure. For more information on WICs, refer to the
Cisco WAN Interface Cards Hardware Installation Guide, which comes with
each card.
•
Cables—Check all the external cables that connect the router to the network.
•
Power system—Check the external power source, power cable, router power
supply, and circuit breaker. Check for inadequate ventilation or air circulation
that might cause overheating.
•
ISDN configuration—Consider ISDN-specific hardware and software
configurations (ISDN BRI WICs only).
OK LED Diagnostics
Use the front-panel OK LED to determine any problems with the router. When the
router first boots up, it performs a power-on self-test (POST). If the router detects
a problem during the POST, the OK LED blinks in different patterns (described
in Table 3-1), depending on the problem. A pattern consists of a specific number
of blinks that is repeated until the router is turned off. If the router experiences
any of these problems, contact your Cisco reseller.
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Table 3-1
OK LED Blinking Patterns
Number of Blinks
Meaning
2
The 860P dual-port random-access memory (DPRAM) has
failed.
3
The parameter RAM area of the 860P DPRAM has failed.
4
The 860P system protection control register has a write
failure.
5
The router cannot detect the dynamic random-access
memory (DRAM).
6
The user programmable machine has a write failure.
9
The router DRAM has failed.
Troubleshooting WICs and Cables
Use the show diag command to help determine problems with a card. Table 3-2
lists problems that could occur with WAN interface cards (WICs) and the possible
causes of these problems.
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Table 3-2
Troubleshooting WICs
Symptom
Router does not recognize
WIC.
Possible Cause(s)
•
Confirm that the Cisco IOS software version installed in the router
supports the WIC. The Cisco WAN Interface Cards Hardware
Installation Guide lists the software requirements for each card.
•
Make sure that the WIC is correctly installed in the router. See the
“Installing WICs” section in the “Installation” chapter of this guide.
•
Use the show diag command to display information about the card:
Router# show diag
Slot 0:
C1721 1FE Mainboard port adapter, 4 ports
Port adapter is analyzed
Port adapter insertion time unknown
Hardware revision 0.0
Board revision UNKNOWN
Serial number
1314672220
Part number
00-0000-00
Test history
0x0
RMA number
00-00-00
EEPROM format version 1
EEPROM contents (hex):
0x20: 01 B2 00 00 4E 5C 4E 5C 00 00 00 00 00 00 00
00
0x30: 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00
00
WIC Slot 0:
Serial 1T WAN daughter card
Hardware revision 1.1
Board revision E0
Serial number
7131279
Part number
73-1775-02
Test history
0x0
RMA number
00-00-00
Connector type
Wan Module
EEPROM format version 1
EEPROM contents (hex):
0x20: 01 02 01 01 00 6C D0 8F 49 06 EF 02 00 00 00
00
0x30: 70 00 00 00 98 01 23 01 FF FF FF FF FF FF FF
FF
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Problem Solving
Table 3-2
Troubleshooting WICs (continued)
Symptom
Possible Cause(s)
Router recognizes the
WIC(s), but the card port(s)
do not initialize.
Router does not boot
properly, or router
continuously or
intermittently reboots.
Router boots, but the
console screen is frozen.
•
Make sure that the WIC is correctly installed in the router. See the
“Installing WICs” section in the “Installation” chapter of this guide.
•
Check the external cable connections to make sure they are secure.
Make sure that the WIC is correctly installed in the router. See the
“Installing WICs” section in the “Installation” chapter of this guide.
•
Make sure that the console cable is securely connected to the router
and to the PC or terminal.
•
Verify that the parameters for your terminal are set to the following:
– 9600 baud
– 8 data bits
– No parity generated or checked
– 1 stop bit
Router powers on and boots
only when a particular WIC
is removed from the router.
•
Confirm that the Cisco IOS software version installed in the router
supports the WIC. The Cisco WAN Interface Cards Hardware
Installation Guide lists the software requirements for each card.
•
The router might be overheating. Contact your Cisco reseller.
Router powers on and boots There might be a problem with the WIC or with the card cables. Consult
only when a particular cable your Cisco reseller for warranty information.
is disconnected.
Troubleshooting the Power System
If the router external power supply fails, you should return it to your Cisco
reseller. Table 3-3 list symptoms and possible causes of power problems.
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Table 3-3
Troubleshooting the Power System
Symptom
Possible Cause(s)
Router shuts down after being on a
short time.
•
Make sure that the area in which the router is installed
meets the environmental site requirements in Appendix A,
“Technical Specifications,” in this guide.
•
If the front panel PWR LED is not on, the power supply has
failed.
The router attempts to boot, but all
LEDs remain off.
The power supply has failed.
The router is on, but the front panel
PWR LED is off.
The power supply has failed.
The front panel PWR LED is on, the The power supply has failed.
front panel OK LED is off, and the
router does not pass console or EIA
data.
Troubleshooting ISDN
Because ISDN uses many variables and supports many different configurations, it
sometimes can cause problems for the router. This section describes possible
problems related to the ISDN line.
Two commands are useful for troubleshooting ISDN:
•
For routers with an ISDN S/T WIC, enter the clear interface command to
terminate any active ISDN calls and to reset the ISDN BRI interface. Do this
for each ISDN port installed in the router:
Router# clear interface bri0
Router# clear interface bri1
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Problem Solving
•
For routers with an ISDN U WIC, use the clear controller command to
terminate any active ISDN calls, to reset the ISDN BRI interface, and to reset
the ISDN line between the router and the central office switch. Do this for
each ISDN port installed in the router:
Router# clear controller bri0
Router# clear controller bri1
Table 3-4 lists troubleshooting methods for ISDN-related problems that
might occur.
Table 3-4
Troubleshooting ISDN
WIC
Symptom(s)
ISDN S/T
Router is on,
but OK LED on
the card is off.
ISDN U
Router is on,
but the NT-1
LED on the
card is off.
Check the Following
Possible Causes
•
Is the OK LED on the
router front panel on?
•
If the OK LED is not on, the
router might be malfunctioning.
Contact your Cisco reseller.
•
Are all ISDN cables
properly connected?
•
If the cables are properly
connected, the ISDN line might
be malfunctioning. Check with
your ISDN service provider.
•
Is the NT-1 LED on?
•
If the NT-1 LED is not on, the
NT1 might be malfunctioning.
•
Is the OK LED on?
•
If the OK LED is not on, the
router might be malfunctioning.
Contact your Cisco reseller.
•
Are all ISDN cables
properly connected?
•
If the cables are properly
connected, the ISDN line might
be malfunctioning. Check with
your ISDN service provider.
•
Is the ISDN line
connected to the card
ISDN U port?
•
If the line is connected to the
port, the ISDN line might be
malfunctioning. Check with your
ISDN service provider.
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A P P E N D I X
A
Technical Specifications
Table A-1 lists hardware and operating specifications for the Cisco 1721 router.
Table A-1
Cisco 1721 Router Specifications
Description
Specification
Console port
RJ-45
Auxiliary port
RJ-45
Ethernet port
RJ-45
Dimensions
HxWxD
3.1 x 11.2 x 8.7 in. (7.85 x 28.4 x 22.1 cm)
Weight
2.6 lb (1.18 kg)
With two WICs
2.9 lb ( 1.32 kg)
Power supply
External
Universal AC/DC switching—Supplies +5V, +12V,
and –12V
On-board
Supplies 3.3V and -5V
Power consumption
20W
Operating Specifications
Operating temperature
32° to 104°F (0 to 40°C)
Storage temperature
–40° to 149°F (–40 to 65°C)
Operating humidity
10% to 85%, noncondensing
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Appendix A
Technical Specifications
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A P P E N D I X
B
Cabling Specifications
This appendix describes cables and cabling guidelines for the Cisco 1721 router
and contains the following sections:
Note
•
Ethernet Cables
•
Ethernet Network Cabling Guidelines
•
Console Cable and Adapter
For information about cables used with Cisco WICs, refer to the Cisco WAN
Interface Cards Hardware Installation Guide, which comes with each card.
Ethernet Cables
This section describes the Ethernet cables that are used to connect the router to
your local Ethernet network. A 10/100BASE-TX router, such as the Cisco 1721
router, requires Category 5 unshielded twisted-pair (UTP) or shielded
twisted-pair (STP) cable. Table B-1 gives the pinouts for an Ethernet cable.
Table B-1
Ethernet Cable Pinouts
RJ-45
Pin1
Signal
Direction
RJ-45
Pin
1
TX+
—>
1
2
TX–
—>
2
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Appendix B
Cabling Specifications
Ethernet Network Cabling Guidelines
Table B-1
Ethernet Cable Pinouts (continued)
RJ-45
Pin1
Signal
Direction
RJ-45
Pin
3
RX+
<—
3
6
RX–
<—
6
1. Pins 4, 5, 7, and 8 are not used for signaling.
Ethernet Network Cabling Guidelines
Table B-2 describes some guidelines for creating Ethernet networks. Figures
might vary, depending on the manufacturer of the network equipment.
Table B-2
Ethernet Cabling Guidelines
Specification
10BASE-T
100BASE-TX
Maximum segment
length
100 meters
100 meters
Maximum number of
segments per network
5
Maximum hop count1
4
•
With Class I
repeaters: 1
•
With Class II
repeaters: 2
•
With Class I
repeaters: none
•
With Class II
repeaters: 1
Maximum number of
nodes per segment
1024
1024
Cable type required
UTP
Category 3, 4, or 5
UTP Category 5 or STP
1. Hop count = Routing metric used to measure the distance between a source and a destination.
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Appendix B
Cabling Specifications
Console Cable and Adapter
Console Cable and Adapter
A console cable is provided with your router. Use this cable to connect the router
to a PC or terminal. The router comes with a DB-9-to-DB-25 adapter that may be
used for connecting the router to a modem, using the console cable.
Table B-3 describes the wiring for the console port and the console cable. This
table also includes pinouts for the DB-9-to-DB-25 adapter.
Table B-3
Console Cable and Adapter Pinouts
Console
(DTE)
Console
Port
Console
Cable
Adapter
Terminal
(DTE)
Signal
RJ-45 Pin
DB-9 Pin
DB-25 Pin
Signal
RTS
1
8
5
CTS
DTR
2
6
8
DSR
TXD
3
2
3
RXD
GND
4
5
7
GND
GND
5
5
7
GND
RXD
6
3
2
TXD
DSR
7
4
20
DTR
CTS
8
7
4
RTS
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Appendix B
Cabling Specifications
Console Cable and Adapter
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A P P E N D I X
C
Installing and Upgrading Memory and
Virtual Private Network Modules
This chapter tells how to install or upgrade memory and how to install a Virtual
Private Memory (VPN) module in your Cisco 1721 router and includes the
following sections:
•
Safety Warnings
•
Opening the Chassis
•
Locating Modules
•
Installing a DIMM
•
Installing a VPN Module
•
Closing the Chassis
Safety Warnings
Warning
During this procedure, wear grounding wrist straps to avoid ESD damage to
the router. Do not directly touch the backplane with your hand or any metal
tool, or you could shock yourself.
Warning
Only trained and qualified personnel should be allowed to install or replace
this equipment.
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Appendix C
Installing and Upgrading Memory and Virtual Private Network Modules
Opening the Chassis
Warning
Before working on a system that has an on/off switch, turn OFF the power
and unplug the power cord.
Warning
Do not work on the system or connect or disconnect cables during periods
of lightning activity.
Warning
Read the installation instructions before you connect the system to its power
source.
Warning
Before working on equipment that is connected to power lines, remove
jewelry (including rings, necklaces, and watches). Metal objects will heat
up when connected to power and ground and can cause serious burns or
weld the metal object to the terminals.
Warning
Hazardous network voltages are present in WAN ports regardless of
whether power to the router is OFF or ON. To avoid electric shock, use
caution when working near WAN ports. When detaching cables, detach the
end away from the router first.
Opening the Chassis
In order to upgrade Cisco 1721 router memory, you must open the chassis.
Opening the chassis requires a number one Phillips screwdriver.
Follow these steps to open the chassis:
Step 1
Make sure the router is turned off and is disconnected from the power supply.
Step 2
Turn the router upside down, and rest the top of the router on a flat surface.
Step 3
Use the Phillips screwdriver to remove the four screws that hold the top and
bottom of the chassis together, as shown in Figure C-1.
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Appendix C
Installing and Upgrading Memory and Virtual Private Network Modules
Opening the Chassis
Figure C-1
Removing the Chassis Screws
#1 Phillips screwdriver
+5
,+
12
,12
OK
MO
DO
K
WIC
1
DS
U
56
K
ON
ATI
ALL
OR
E
INST
CD
EF
AL
B
U
EM
AN
SE
AU
X
TD
65533
10
/10
0E
T
RD
LP
AL
H
K
0
X
FD
21
M
o
Cis del
co
17
WIC
10
LIN
CO
NS
OL
E
0O
K
Rear panel
Top of router
Step 4
Turn the router back to its original position (top up).
Step 5
Gently pull the top of the router (which is facing up toward you) up and away from
the bottom of the router (which is resting on the flat surface).
At this point, you might have to disconnect the fan, which is inside the top of the
router chassis, from the motherboard. Do this by disconnecting the fan cable from
the connector (labeled FAN) on the motherboard.
Step 6
Place the router bottom on an antistatic mat, and begin installing memory.
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C-3
Appendix C
Installing and Upgrading Memory and Virtual Private Network Modules
Locating Modules
Locating Modules
Figure C-2 shows where to find slots for a dual in-line memory module (DIMM)
and a VPN module on the router motherboard.
Figure C-2
Cisco 1700 Motherboard—Memory Locations
Rear panel of router
WAN interface card slot
WAN interface card slot
[]
65635
Boot ROM
DIMM slot
VPN slot
VPN standoff
holes
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Appendix C
Installing and Upgrading Memory and Virtual Private Network Modules
Installing a DIMM
Installing a DIMM
You can install a DIMM to increase the amount of dynamic random-access
memory (DRAM) in the router.
Follow these steps to install a DIMM on the router motherboard:
Step 1
Locate the DIMM slot on the motherboard.
Step 2
Remove any existing DIMM by pulling the DIMM slot guides (shown in
Figure C-3) away from the DIMM and down toward the motherboard.
Figure C-3
Installing a DIMM
DIMM
2
DIMM slot
DIMM slot guides
2
42289
1
Step 3
Insert the DIMM into the DIMM slot, making sure that the notches on the edge of
the DIMM are inserted over the bars inside the DIMM slot, as in Figure C-3.
Step 4
Firmly press the DIMM into the slot until the two DIMM slot guides on each side
of the slot move up and over the end of the DIMM, as in Figure C-3. If the guides
do not move up over the edge of the DIMM, move them with your hands.
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C-5
Appendix C
Installing and Upgrading Memory and Virtual Private Network Modules
Installing a VPN Module
Installing a VPN Module
Follow the steps in this section to install a VPN module.
Step 1
Figure C-4
Installing the Standoffs on the VPN Module
Standoff
Screw
Standoff is installed
into the hole just behind
the large connector.
46084
Screw
Install the two standoffs on the module, as shown in Figure C-4.
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Appendix C
Installing and Upgrading Memory and Virtual Private Network Modules
Installing a VPN Module
Step 2
VPN Module Location
65823
Figure C-5
Locate the VPN module socket, and insert the VPN module, as shown in
Figure C-5.
Step 3
Seating the VPN Module
65824
Figure C-6
Pushing down as indicated in Figure C-6, plug the VPN module into the socket.
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Appendix C
Installing and Upgrading Memory and Virtual Private Network Modules
Installing a VPN Module
Step 4
Turn the motherboard over, and attach the standoffs to it by using the screws
provided, as shown in Figure C-7.
Figure C-7
Securing the Standoff to the Router Motherboard
Standoff screws
45919
Bottom of the board
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Appendix C
Installing and Upgrading Memory and Virtual Private Network Modules
Closing the Chassis
Closing the Chassis
After installing memory or a VPN module on the motherboard, close the chassis
by following these steps:
Step 1
If you disconnected the fan from the motherboard as described in the “Opening
the Chassis” section, reconnect the fan cable to the connector labeled FAN on the
motherboard.
Step 2
Locate the posts that protrude from the inside of the chassis cover, and locate the
corresponding openings on the chassis bottom.
Step 3
Line up the posts with the corresponding openings, as shown in Figure C-8, and
carefully slide the posts into the openings, taking care not to damage the router
motherboard with the posts.
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C-9
Appendix C
Installing and Upgrading Memory and Virtual Private Network Modules
Closing the Chassis
Closing the Chassis
12616
Figure C-8
Step 4
Replace the screws that you removed when you opened the chassis. (See
Figure C-1.)
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A P P E N D I X
D
Ordering and Configuring an ISDN
Line
This appendix tells how to order and configure an Integrated Services Digital
Network (ISDN) Basic Rate Interface (BRI) line for use with a Cisco 1721 router
with an ISDN BRI WIC installed.
This appendix contains the following sections:
•
ISDN BRI Line Configuration Requirements
•
ISDN BRI Switch Types
•
ISDN BRI Provisioning by Switch Type
•
Defining ISDN Service Profile Identifiers
•
ISDN Configuration Options
ISDN BRI Line Configuration Requirements
Before using a Cisco 1721 router with an ISDN BRI WIC installed, you must
order a correctly configured ISDN BRI line from your local telecommunications
service provider.
This process varies dramatically from provider to provider, both nationally and
internationally. However, the following are some general guidelines:
•
Ask for two channels to be called by one number.
•
Ask for delivery of calling-line identification. This is also known as caller ID
or automatic number identification (ANI).
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Appendix D
Ordering and Configuring an ISDN Line
ISDN BRI Switch Types
•
If the router is going to be the only device attached to the ISDN BRI line, ask
for point-to-point service and a data-only line.
•
If you will be connecting another ISDN device (such as an ISDN telephone)
to the ISDN BRI line, ask for point-to-multipoint service (subaddressing is
required) and a voice-and-data line.
ISDN BRI Switch Types
ISDN BRI supports a variety of service provider switches. Table D-1 lists, by
geographic area, the ISDN switch types supported by a Cisco 1721 router
ISDN BRI interface. Use the isdn switch-type command followed by the
corresponding keyword. You must reboot the router after you enter this command
in order for the change to take effect.
Table D-1
ISDN Switch Types Supported by the Cisco 1721 Router
Switch Type
Keyword
Australia
TS013 switches
basic-ts013
Europe
German 1TR6 switches
basic-1tr6
Norway NET3 switches (phase 1)
basic-nwnet3
NET3 ISDN switches (UK and others)
basic-net3
VN2 ISDN switches
vn2
VN3 ISDN switches
vn3
Japan
NTT switches
ntt
North America
Basic 5ESS switches
basic-5ess
NT DMS-100 and 5ESS custom switches
basic-dms100
National ISDN-1(NI1) or switches
basic-ni
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Appendix D
Ordering and Configuring an ISDN Line
ISDN BRI Provisioning by Switch Type
Table D-1
ISDN Switch Types Supported by the Cisco 1721 Router (continued)
Switch Type
Keyword
New Zealand
Net3 switches
basic-nznet3
ISDN BRI Provisioning by Switch Type
The ISDN BRI line is configured (or provisioned) for different types of services
by the ISDN BRI service provider. The person ordering the ISDN line must also
order the provisioning described in this section.
Table D-2 lists the provisioning that should be ordered for the router, based on the
switch type.
Table D-2
Provisioning Required for ISDN Switch Types
Switch Type
Provisioning
5ESS Custom BRI For data only
Two B channels for data.
Point to point.
Terminal type = E.
One directory number (DN) assigned by service provider.
MTERM = 1.
Request delivery of calling line ID on Centrex lines.
Set speed for ISDN calls to 56 kbps outside local exchange.
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Appendix D
Ordering and Configuring an ISDN Line
ISDN BRI Provisioning by Switch Type
Table D-2
Provisioning Required for ISDN Switch Types (continued)
Switch Type
Provisioning
5ESS Custom BRI For voice and data
(Use these values only if you have an ISDN telephone
connected.)
Two B channels for voice or data.
Multipoint.
Terminal type = D.
Two directory numbers assigned by service provider.
Two service profile identifiers (SPIDs) required, assigned
by service provider.
MTERM = 2.
Number of call appearances = 1.
Display = no.
Ringing/idle call appearances = idle.
Autohold = no.
Onetouch = no.
Request delivery of calling line ID on Centrex lines.
Set speed for ISDN calls to 56 kbps outside local exchange.
Directory number 1 can hunt to directory number 2.
5ESS National
ISDN (NI1) BRI
Terminal type = A.
Two B channels for voice and data.
Two directory numbers assigned by service provider.
Two SPIDs required; assigned by service provider.
Set speed for ISDN calls to 56 kbps outside local exchange.
Directory number 1 can hunt to directory number 2.
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Appendix D
Ordering and Configuring an ISDN Line
Defining ISDN Service Profile Identifiers
Table D-2
Provisioning Required for ISDN Switch Types (continued)
Switch Type
Provisioning
DMS-100 BRI
Two B channels for voice and data.
Two directory numbers assigned by service provider.
Two SPIDs required; assigned by service provider.
Functional signaling.
Dynamic terminal endpoint identifier (TEI) assignment.
Maximum number of keys = 64.
Release key = no, or key number = no.
Ringing indicator = no.
EKTS = no.
PVC = 2.
Request delivery of calling line ID on Centrex lines.
Set speed for ISDN calls to 56 kbps outside local exchange.
Directory number 1 can hunt to directory number 2.
Defining ISDN Service Profile Identifiers
An ISDN service provider, usually a telephone company, can offer a variety of
services. Many providers use service profile identifiers (SPIDs) to identify the
device that is using the ISDN service, similar to the way that the telephone
company uses a telephone number to identify your standard telephone service. If
you use such a service provider, the provider assigns your ISDN device one or
more SPIDs when you first subscribe to the service. Providers use different
numbering schemes, but a SPID is usually a seven-digit telephone number, plus
some optional numbers.
The provider also assigns your device one or two local directory numbers (LDNs),
which function as the router telephone number. The LDN is the number that a
remote router dials to make a call to your router.
Note
SPIDs have significance only at the local-access ISDN interface. Every router
that uses ISDN must be assigned SPIDs (if used by the service provider) by
the service provider for that router.
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Appendix D
Ordering and Configuring an ISDN Line
ISDN Configuration Options
When the router connects to the service provider’s central office ISDN switch, it
sends the SPIDs to the switch. If the router is not configured with the correct
SPIDs, it cannot place or receive calls. Use the isdn spid command to define the
SPID and the LDN on the router for both ISDN BRI B channels, as follows:
Router(config-if)# isdn spid1 spid-number [ldn]
Router(config-if)# isdn spid2 spid-number [ldn]
Note
Although the LDN is usually optional, it might be required so that the router
answers calls made to the second directory number.
ISDN Configuration Options
For information on how to configure Cisco 1721 router to dial in to a central-site
router over ISDN, refer to the Cisco 1700 Router Software Configuration Guide.
For more advanced information on configuring ISDN for Cisco 1700 routers,
refer to the chapter “Configuring ISDN” in the Dial Solutions Configuration
Guide, which is on the Documentation CD-ROM that came with your router. This
document includes information on the following topics:
•
Snapshot Routing
•
Dial-on-Demand Routing
•
Bandwidth on Demand and Dial Backup
Snapshot Routing
You can configure snapshot routing for the router ISDN interface. During
snapshot routing, the router is configured to bring up the ISDN line, to
dynamically learn about remote routes, and then to take down the ISDN line. The
router saves the learned routes for a specified period of time, even though routing
updates are not exchanged while the ISDN line is down. See the chapter
“Configuring DDR” in the Wide-Area Networking Configuration Guide for
detailed information about snapshot routing.
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Appendix D
Ordering and Configuring an ISDN Line
ISDN Configuration Options
Dial-on-Demand Routing
To place calls on the ISDN interface, you must configure it with dial-on-demand
routing (DDR). See the chapter “Configuring DDR” in the Wide-Area Networking
Configuration Guide for detailed information about DDR.
Bandwidth on Demand and Dial Backup
See the chapter “Configuring DDR” in the Wide-Area Networking Configuration
Guide for detailed information about bandwidth on demand and dial backup.
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Appendix D
Ordering and Configuring an ISDN Line
ISDN Configuration Options
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INDEX
description 1-5
Numerics
illustration 1-4
100 LED 1-5
break, sending to router 3-4
BRI
See ISDN BRI
A
accessory kit 1-9
adapter, included 1-9
additional required equipment 1-9
ANI
See calling-line identification
Automatic Number Identification
See calling-line identification
auxiliary port
connecting 2-12
description 1-3, 1-4
illustration 1-4
C
cables
console B-3
Ethernet pinout B-1
included with router 1-9
requirements for Ethernet networks B-2
serial 1-10
caller ID
See calling-line identification
calling-line identification D-1
caution, definition xiii
chassis
B
closing C-9
back panel
connectors
dimensions A-1
opening C-2
description 1-4 to 1-5
Cisco reseller, contacting 3-1
illustration 1-4
closing chassis C-9
LEDs
command conventions xvi
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Index
commands
copy command 3-5, 3-6
config-register 3-6
configure terminal 3-6
copy 3-5, 3-6
enable 3-5
D
DIMM
enable secret 3-6
installing C-5
isdn spid D-6
locating on router C-4
isdn switch-type D-2
documentation, related xii
reset 3-4
DRAM 1-8
show startup-config 3-5
show version 1-8, 3-3
config-register command 3-6
configuration register
E
enable command 3-5
determining value 3-2 to 3-3
enable password, recovering 3-2
resetting 3-6 to 3-7
enable secret command 3-6
configure terminal command 3-6
enable secret password, resetting 3-6
connecting
ETH ACT LED 1-7
Ethernet cable 2-2
ETH COL LED 1-7
power cord 2-8
Ethernet cable
router to a modem 2-12
connecting 2-2
router to a PC 2-10
pinouts B-1
console port
requirements for networks B-2
connecting 2-11
Ethernet port
description 1-3, 1-4
connecting 2-2, 2-3
illustration 1-4
description 1-3, 1-4
specifications A-1
illustration 1-4
conventions
specifications A-1
command xvi
text xiii
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Index
ISDN
F
See ISDN BRI
FDX LED 1-5
ISDN BRI
Flash memory 1-8
configuring
front panel
options D-6
illustration 1-2
requirements D-1
LEDs
line configuration requirements D-1
description 1-6 to 1-7
point-to-multipoint service D-2
illustration 1-6
point-to-point service D-2
provisioning D-3 to D-5
SPID
H
configuring D-6
definition D-5
hub
switch types D-2
connecting to 2-3
description 1-10
isdn spid command D-6
isdn switch-type command D-2
I
installing
DIMM C-5
L
LEDs
equipment you provide 1-9
back panel 1-4
preparing for 2-1
front panel 1-6
stacking with other devices 2-14
OK LED diagnostics 3-7
verifying using LEDs 2-4, 2-9
using to verify installation 2-9
VPN C-6 to C-8
LINK LED 1-5
wall-mounting 2-13
WAN interface cards 2-4
Integrated Services Digital Network
See ISDN BRI
M
memory
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Index
description 1-7
P
DIMM
installing C-5
password, recovering 3-2
locating on router C-4
PC
displaying amounts 1-8
connecting to router 2-10
DRAM 1-8
terminal emulation settings 2-11
pinouts
Flash 1-8
NVRAM 1-8
console cable B-3
show version command 1-8
Ethernet cable B-1
power socket
modem
connecting to router 2-12
connecting 2-8
description 1-10
illustration 1-4
support 1-3
specifications A-1
MOD OK LED 1-5
problem solving 3-7
PWR LED 1-6
N
R
note, definition xiii
NVRAM 1-8
reset command 3-4
resetting the router 3-4 to 3-5
router
O
resetting 3-4 to 3-5
specifications A-1
OK LED
unpacking 1-9, ?? to 1-9
description 1-6
diagnostics 3-7
opening chassis C-2
S
serial cable 1-10
service profile identifier
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Index
See SPID
V
show startup-config command 3-5
show version command 3-3
VPN module
specifications, operating A-1
installing C-6 to C-8
SPID
location on router C-7
configuring D-6
definition D-5
stacking router with other devices 2-14
switch
connecting to 2-3
description 1-10
W
wall-mounting 2-13
WAN interface cards
description 1-10
installing 2-6
router slots 1-3
T
slot specifications A-1
terminal emulation, settings 2-11
supported cards 1-3
text conventions xiii
troubleshooting 3-8 to 3-10
troubleshooting
warning, definition xiii
cables 3-8
WIC0 ACT/CH0 LED 1-6
contacting Cisco reseller 3-1
WIC0 ACT/CH1 LED 1-6
password recovery 3-2
WIC0 OK LED 1-5
using the OK LED 3-7
WIC1 ACT/CH0 LED 1-7
WAN interface cards 3-8 to 3-10
WIC1 ACT/CH1 LED 1-7
WIC1 OK LED 1-5
U
unpacking the router 1-9, ?? to 1-9
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Index
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