Table Of Contents
Cisco 3725 Modular Router
Cisco 90-Day Limited Hardware Warranty Terms
Documents, Equipment, and Tools
User Documentation
Items Included with Cisco 3725 Routers
Items Not Included
Install the Chassis
Safety Information
Warning Definition
Installing the Chassis
Rack-Mounting the Chassis
Installing on a Desktop
Grounding the Chassis
Connect Cables
System Management Connections
Power Connections
Connecting Routers to AC Power
Connecting Routers to DC Power
Connecting Routers to the Cisco Redundant Power System
WAN, LAN, and Voice Connections
Power Up the Router
Checklist for Power-Up
Front Panel Indicators
Power-Up Procedure
Perform Initial Configuration
Initial Configuration Using Cisco Router and Security Device Manager
Initial Configuration Using Setup Command Facility
Initial Configuration Using the CLI (Manual Configuration)
Interface Numbering
WAN and LAN Interface Numbering
Voice Interface Numbering
Where to Go Next
Obtaining Documentation
Cisco.com
Ordering Documentation
Documentation Feedback
Obtaining Technical Assistance
Cisco Technical Support Website
Submitting a Service Request
Definitions of Service Request Severity
Obtaining Additional Publications and Information
Quick Start Guide
Cisco 3725 Modular Router
INCLUDING LICENSE AND WARRANTY
1 Cisco 90-Day Limited Hardware Warranty Terms
There are special terms applicable to your hardware warranty and various services that you can use during the warranty period. Your formal Warranty Statement, including the warranties and license agreements applicable to Cisco software, is available on Cisco.com. Follow these steps to access and download the Cisco Information Packet and your warranty and license agreements from Cisco.com.
1. 
Launch your browser, and go to this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/cetrans.htm
The Warranties and License Agreements page appears.
2. To read the Cisco Information Packet, follow these steps:
a. Click the Information Packet Number field, and make sure that the part number 78-5235-03A0 is highlighted.
b. Choose the language in which you would like to read the document.
c. Click Go. The Cisco Limited Warranty and Software License page from the Information Packet appears.
d. Read the document online, or click the PDF icon to download and print the document in Adobe Portable Document Format (PDF).
Note You must have Adobe Acrobat Reader to view and print PDF files. You can download the reader from Adobe's website: http://www.adobe.com
3. To read translated and localized warranty information about your product, follow these steps:
a. Enter this part number in the Warranty Document Number field: 78-5236-01C0
b. Choose the language in which you would like to read the document.
c. Click Go. The Cisco warranty page appears.
d. Review the document online, or click the PDF icon to download and print the document in Adobe Portable Document Format (PDF).
You can also contact the Cisco service and support website for assistance:
http://www.cisco.com/public/Support_root.shtml.
Duration of Hardware Warranty
Ninety (90) days.
Replacement, Repair, or Refund Policy for Hardware
Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten (10) working days after receipt of a Return Materials Authorization (RMA) request. Actual delivery times can vary, depending on the customer location.
Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.
To Receive a Return Materials Authorization (RMA) Number
Contact the company from whom you purchased the product. If you purchased the product directly from Cisco, contact your Cisco Sales and Service Representative.
Complete the information below, and keep it for reference:
Company product purchased from
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Company telephone number
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Product model number
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Product serial number
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Maintenance contract number
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2 Documents, Equipment, and Tools
User Documentation
All the documents referenced in this quick start guide are available online on Cisco.com. To be sure of obtaining the latest information, you should access the online documentation.
To view or print a document in its original page format, access the online document, and click the PDF icon.
For information about accessing user documentation, see the "Where to Go Next" section.
Items Included with Cisco 3725 Routers
•Rack-mount brackets with screws for 19-inch (48.26-cm) racks
•Ground lug; AC power cord with AC-powered routers
•RJ-45-to-DB-9 adapter cable for console connection
•RJ-45-to-DB-25 adapter cable for modem connection
•Ethernet cable for LAN interface
•Cisco product registration card; cisco.com card
•Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Regulatory Compliance and Safety Information document
•Cisco Router and Security Device Manager (SDM) Quick Start Guide document (if SDM is installed on your router)
•Cisco 3725 Modular Router Quick Start Guide (this document)
Items Not Included
Individual items in this list may be required for your particular application:
•Four screws for installing the chassis in a rack
•PC running terminal emulation software for administrative access, or modem for remote administrative access
•Cables for WAN and voice interfaces and for additional LAN interfaces
•Cable ties
•Phillips screwdriver
3 Install the Chassis
Safety Information
For safety information you need to know before working on your Cisco router, see the Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Regulatory Compliance and Safety Information document that accompanied this device.
Note To see translations of the warnings that appear in this publication, see the Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Regulatory Compliance and Safety Information document.
Warning Definition
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Warning
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IMPORTANT SAFETY INSTRUCTIONS
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. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071
SAVE THESE INSTRUCTIONS
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Waarschuwing
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BELANGRIJKE VEILIGHEIDSINSTRUCTIES
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 de standaard praktijken om ongelukken te voorkomen. Voor een vertaling van de waarschuwingen die in deze publicatie verschijnen, dient u de vertaalde veiligheidswaarschuwingen te raadplegen die bij dit apparaat worden geleverd.
Opmerking BEWAAR DEZE INSTRUCTIES.
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Varoitus
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TÄRKEITÄ TURVALLISUUTEEN LIITTYVIÄ OHJEITA
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 asiakirjassa esitettyjen varoitusten käännökset löydät laitteen mukana toimitetuista ohjeista.
Huomautus SÄILYTÄ NÄMÄ OHJEET
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Attention
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IMPORTANTES INFORMATIONS DE SÉCURITÉ
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 les consignes de sécurité traduites qui accompagnent cet appareil.
Remarque CONSERVEZ CES INFORMATIONS
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Warnung
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WICHTIGE SICHERHEITSANWEISUNGEN
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 sind im Lieferumfang des Geräts enthalten.
Hinweis BEWAHREN SIE DIESE SICHERHEITSANWEISUNGEN AUF
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Avvertenza
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IMPORTANTI ISTRUZIONI SULLA SICUREZZA
Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Per le traduzioni delle avvertenze riportate in questo documento, vedere le avvertenze di sicurezza che accompagnano questo dispositivo.
Nota CONSERVARE QUESTE ISTRUZIONI
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Advarsel
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VIKTIGE SIKKERHETSINSTRUKSJONER
Dette varselssymbolet betyr fare. Du befinner deg i en situasjon som kan forårsake personskade. Før du utfører arbeid med utstyret, bør du være oppmerksom på farene som er forbundet med elektriske kretssystemer, og du bør være kjent med vanlig praksis for å unngå ulykker. For å se oversettelser av advarslene i denne publikasjonen, se de oversatte sikkerhetsvarslene som følger med denne enheten.
Merk TA VARE PÅ DISSE INSTRUKSJONENE
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Aviso
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INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. O utilizador encontra-se numa situação que poderá ser causadora de lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha em atenção os perigos envolvidos no manuseamento de circuitos eléctricos e familiarize-se com as práticas habituais de prevenção de acidentes. Para ver traduções dos avisos incluídos nesta publicação, consulte os avisos de segurança traduzidos que acompanham este dispositivo.
Nota GUARDE ESTAS INSTRUÇÕES
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¡Advertencia!
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INSTRUCCIONES IMPORTANTES DE SEGURIDAD
Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los procedimientos estándar de prevención de accidentes. Vea las traducciones de las advertencias que acompañan a este dispositivo.
Nota GUARDE ESTAS INSTRUCCIONES
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Varning!
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VIKTIGA SÄKERHETSANVISNINGAR
Denna varningssignal 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 vanliga förfaranden för att förebygga olyckor. Se översättningarna av de varningsmeddelanden som finns i denna publikation, och se de översatta säkerhetsvarningarna som medföljer denna anordning.
OBS! SPARA DESSA ANVISNINGAR
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Aviso
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INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham o dispositivo.
GUARDE ESTAS INSTRUÇÕES
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Advarsel
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VIGTIGE SIKKERHEDSANVISNINGER
Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til undgåelse af ulykker. Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de oversatte advarsler, der fulgte med denne enhed.
GEM DISSE ANVISNINGER
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Warning This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017
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. Statement 43
Warning This equipment has been designed for connection to TN and IT power systems. Statement 1007
Warning To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021
Warning This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Warning Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place. Statement 1029
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030
Warning To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the weight of the unit. Statement 1032
Warning Ultimate disposal of this product should be handled according to all national laws and regulations. Statement 1040
Installing the Chassis
You can set the chassis on a desktop or install it in a rack. See the applicable instructions in the following sections:
•Rack-Mounting the Chassis
•Installing on a Desktop
Note Cisco 3725 routers are not designed for wall-mounting.
Caution Your chassis installation must allow unrestricted airflow for chassis cooling. For mounting in a 19-inch (48.26-cm) rack, be sure to install the wide bracket (marked RIGHT) on the side where the cooling fans are located. For installation on a desktop, keep at least 1 inch (2.54 cm) of clear space beside the cooling fans.
Caution To prevent damage to the chassis, never attempt to lift or tilt the chassis by the plastic panel on the front. Always hold the chassis by the metal body.
Rack-Mounting the Chassis
You can install the Cisco 3725 router in a 19-inch (48.26-cm) rack with the following chassis orientations:
•Center mounting—Brackets attached in the center of the chassis with either the front panel or the rear panel facing forward
•Front mounting—Brackets attached at the front of the chassis with the front panel facing forward
•Rear mounting—Brackets attached at the rear of the chassis with the rear panel facing forward
The rack-mounting brackets are shown in Figure 1.
Note The slots in the brackets marked RIGHT are for securing cables with cable ties.
Figure 1 Rack-Mounting Brackets
Attaching Brackets
Attach the mounting brackets to the chassis as shown in Figure 2, Figure 3, Figure 4, or Figure 5, using the screws provided in the bracket kit. Use a number 2 Phillips screwdriver to install the bracket screws.
Note Be sure to attach the bracket marked RIGHT to the side with the cooling fans to provide extra clearance for cooling air.
Figure 2 Bracket Installation for Center Mounting with Front Panel Forward
Figure 3 Bracket Installation for Center Mounting with Rear Panel Forward
Figure 4 Bracket Installation for Front Mounting
Figure 5 Bracket Installation for Rear Mounting
Installing the Chassis in a Rack
Install the chassis in the rack. Rack-mounting screws are not provided with the router. Use two screws for each side (supplied with the rack).
Installing on a Desktop
Caution If you place the Cisco router on a desktop, do not place anything that weighs more than 10 pounds (4.5 kilograms) on top of the chassis.
Grounding the Chassis
You must connect the chassis to a reliable earth ground; the ground wire must be installed in accordance with local electrical safety standards.
•For NEBS-compliant grounding, use size AWG 6 (13 mm2) wire and the ground lug provided in the accessory kit.
•For NEC-compliant grounding, use size AWG 14 (2 mm2) or larger wire and an appropriate user-supplied ring terminal.
•For EN/IEC 60950-compliant grounding, use size AWG 18 (1 mm2) or larger wire and an appropriate user-supplied ring terminal.
To connect the chassis to a reliable earth ground, perform the following steps:
Step 1 Strip one end of the ground wire to the length required for the ground lug or terminal.
•For the NEBS ground lug—approximately 0.75 in. (20 mm)
•For user-provided ring terminal—as required
Step 2 Crimp the ground wire to the ground lug or ring terminal, using a crimp tool of the appropriate size.
Step 3 Attach the ground lug or ring terminal to the chassis as shown in Figure 6 or Figure 7. For the ground lug, use the two screws with captive locking washers provided. For a ring terminal, use one of the screws provided. Use a number 2 Phillips screwdriver, and tighten the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m).
Step 4 Connect the other end of the ground wire to a grounding point at your site.
Figure 6 NEBS-Compliant Chassis Ground Connection Using Ground Lug
Figure 7 Chassis Ground Connection Using Ring Terminal
4 Connect Cables
Warning Do not work on the system, or connect or disconnect cables during periods of lightning activity. Statement 1001
System Management Connections
The connections described in Table 1 provide system management access.
Table 1 System Management Connections
Port
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Color
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Connection:
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Cable
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Console
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Light blue
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PC or ASCII terminal communication port (usually labeled COM)
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RJ-45-to-DB-9 adapter cable
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Auxiliary
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Black
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Modem for remote access
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RJ-45-to-DB-25 adapter cable
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Power Connections
Warning Read the installation instructions before connecting the system to the power source. Statement 1004
Note The installation must comply with all required electrical codes applicable at the installation site.
Connecting Routers to AC Power
If your router uses AC power, connect it to a 15A, 120 VAC (10A, 240 VAC) circuit with overcurrent protection.
Note The input voltage tolerance limits for AC power are 85 and 264 VAC.
Warning AC connected units must have a permanent ground connection in addition to the power cable ground wire. NEBS-compliant grounding satisfies this requirement. Statement 284
Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than:
15A, 120VAC (10A, 240VAC). Statement 1005
Connecting Routers to DC Power
If your router has a DC-input power supply, follow the directions in this section for proper wiring.
Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than:
15A, 60VDC. Statement 1005
Warning Use copper conductors only. Statement 1025
DC Wiring Requirements
A Cisco 3725 router with a DC-input power supply requires copper wire for the power connections. Table 2 summarizes the wiring requirements.
Note For installations compliant with the National Electric Code, AWG 14 (2.0 mm2) wire is required for DC input and safety ground wire.
Table 2 DC Wiring Requirements for Cisco 3725 Routers
DC Power Source
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DC Input
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Safety Ground Wire Size
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Overcurrent Protection
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Nominal 24/48 VDC2
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24-36 VDC, 9 A, positive or negative, single source or dual sources
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AWG 18
(1.0 mm2)
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AWG 14
(2.0 mm2)
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15 A maximum
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36-60 VDC, 4 A, positive or negative, single source or dual sources
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AWG 18
(1.0 mm2)
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AWG 14
(2.0 mm2)
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15 A maximum
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Wiring Procedure for DC Input
To connect the router to a DC power source, perform the following steps:
Step 1 Remove power from the DC circuit. To ensure that power is removed from the DC circuit, locate the circuit breaker for the DC circuit, switch the circuit breaker to the OFF position, and tape the circuit-breaker switch in the OFF position.
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003
Tip Secure all power cabling when installing this unit to avoid disturbing field-wiring connections.
Step 2 Strip the wires 3/16 inch to 1/4 inch (5 mm to 7 mm).
Step 3 Remove the plastic cover from the terminal block. Save it for reinstallation after you finish wiring.
Step 4 Connect the wires to the terminal block, starting with the safety ground wire. Insert each wire into the appropriate terminal as shown in Figure 8. To avoid interference with the on/off switch, insert the wires from below. Tighten the terminal screws to 8.0 ± 0.5 in-lb (0.9 ± 0.05 N-m).
Warning The illustration shows the DC power supply terminal block. Wire the DC power supply as illustrated. The proper wiring sequence is ground to ground, positive to positive, and negative to negative. The ground wire should always be connected first and disconnected last. Statement 239
Warning An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that no exposed portion of the DC-input power source wire extends from the terminal block plug. Statement 122
Caution Do not overtorque the terminal block contact screws. Recommended torque is 8.0 ± 0.5 in-lb (0.90 ± 0.05 N-m).
Figure 8 DC Power Connections
Step 5 Install the plastic cover over the terminal block. (See Figure 9.)
Warning The safety cover is an integral part of the product. Do not operate the unit without the safety cover installed. Operating the unit without the cover in place will invalidate the safety approvals and pose a risk of fire and electrical hazards. Statement 117
Step 6 Organize and secure the wires using cable ties as shown in Figure 9.
Step 7 Turn on power to the DC circuit.
Figure 9 Wire Routing and Attachment
Approved Scenarios and Scenarios Not Approved for Dual DC Power Supply Configuration
You can connect a single DC power source to either the A input or the B input. If there are dual power sources, connect one source to the A input and one source to the B input. Both sources must be the same polarity (with respect to ground) and voltage (within 0.25 volts). Do not connect -DC grounded and +DC grounded dual sources to a Cisco 3725 series router.
Caution Dual sources with opposite-polarity grounding damage equipment.
In Figure 10, either the positive source terminal or the negative source terminal is tied to ground.
Figure 10 Connecting to One Source Only—Source A or Source B
In Figure 11, source A and source B share common negative terminal connections.
Figure 11 Connecting Source A and Source B with Common Negative Terminals
In Figure 12, source A and source B share common positive terminal connections. This is allowed only if Va equals Vb (within 0.25 V).
Caution When connecting source A and source B with common positive terminals, if source A and source B voltages are unequal by more than 0.25 V, the higher-voltage source can discharge into the lower-voltage source through the A- and B- input terminals. Excessive discharging currents through these terminals can cause one or both of the dual input DC power supply's internal A- or B- fuses to open, resulting in lack of redundancy or system failure. When source A and source B are within 0.25 V, discharge current is minimal.
Note When source A and source B are wired with common negative terminals, as in Figure 11, discharging does not occur and there is no restriction requiring that source A and source B voltages be equal.
Figure 12 Connecting Source A and Source B with Common Positive Terminals
In Figure 13, source A and source B are wired with opposite polarity grounds. Do not use this configuration.
Caution Do not use the DC input configuration shown in
Figure 13.
Figure 13 Source A and Source B Wired with Opposite-Polarity Grounds
Connecting Routers to the Cisco Redundant Power System
If your router uses the Cisco Redundant Power System (RPS), see the Cisco RPS Hardware Installation Guide for instructions about the power connections. To locate these documents, see the "Where to Go Next" section.
WAN, LAN, and Voice Connections
The connections and cables listed here are described in detail in the following documents:
•Cisco 3700 Series Routers Hardware Installation Guide
•Cisco Network Modules Hardware Installation Guide
•Cisco Interface Cards Installation Guide
•Cisco Modular Access Router Cable Specifications
For information about accessing these documents, see the "Where to Go Next" section.
Table 3 summarizes some typical WAN, LAN, and voice connections for Cisco 3725 routers.
Note If the chassis is rear mounted, brackets with slots provide cable-tie attachment points.
Table 3 WAN, LAN, and Voice Connections
Port or Connection
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Port type, color
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Connection:
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Cable
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Fast Ethernet
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RJ-45, yellow,
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Ethernet hub
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Straight-through Ethernet
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T1/E1 WAN
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RJ-48C/CA81A, blue
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T1 or E1 network
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RJ-48 T1E1
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Cisco serial
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60-pin D-sub, blue
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CSU/DSU and serial network or equipment
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Cisco serial transition cable that matches the signaling protocol (EIA/TIA-232, EIA/TIA-449, V.35, X.21, or EIA/TIA-530) and the serial port operating mode (DTE or DCE).1
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Cisco Smart serial
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Cisco Smart compact connector, blue
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CSU/DSU and serial network or equipment (for WIC-2T and WIC-2A/S only)
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DSL
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RJ-11C/CA11A, lavender
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Network demarcation device for service provider's DSL interface
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RJ-11
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T1/E1 digital voice
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RJ-48C/CA81A, tan
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Digital PBX
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RJ-48 T1/E1 cable
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Analog voice FXS
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RJ-11, gray
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Telephone, fax
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RJ-11
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Analog voice FXO
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RJ-11, pink
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Central office, analog PBX
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RJ-11
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Analog voice E&M
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RJ-11, brown
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Analog PBX
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RJ-11
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BRI S/T WAN
(external NT1)
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RJ-45/CB-1DA, orange
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NT1 device or private integrated network exchange (PINX)
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RJ-45 straight-through
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BRI U WAN
(built-in NT1)
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RJ-49C/CA-A11, red
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ISDN network
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RJ-48 straight-through
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CT1/PRI
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T1
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External T1 CSU
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DB-15 T1 serial cable
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CT1/PRI-CSU
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T1
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RJ-48C/CA81A interface
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RJ-48 straight-through
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CE1/PRI
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E1
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E1 network
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DB-15 to BNC, DB-15 to DB-15, DB-15 to twinax, or DB-15 to RJ-45
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56/64-kbps DSU/CSU
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8-pin modular, blue
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RJ-48S interface
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RJ-48 straight-through
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5 Power Up the Router
Checklist for Power-Up
You are ready to power up the Cisco router if the following steps are completed:
•The chassis is securely mounted and grounded.
•Power and interface cables are connected.
•Your PC terminal emulation program is configured for 9600 baud, 8 data bits, 1 stop bit, and no parity.
•You have selected passwords for access control.
•You have determined the IP addresses for the Ethernet and serial interfaces.
Front Panel Indicators
The following indicator LEDs provide power, activity, and status information:
•Power (green)—Lit when power is on
•Sys/RPS (green)
–Rapid blinking (200 ms)—System is booting
–Slow blinking (1 s)—Redundant power supply (RPS) failure
–Continuous on—System OK
•Activity (green)—Blinks during system activity, such as interrupts and packet transfers
Power-Up Procedure
To power up your Cisco router and verify that it goes through its initialization and self-test, perform this procedure. When the power-up procedure is finished, the Cisco router is ready to be configured.
Note To view the boot sequence through a terminal session, you must have a console connection to the Cisco router before it powers up.
Step 1 Make sure that your PC is powered up and connected as described in the "Checklist for Power-Up" section.
Step 2 Move the power switch to the ON position.
The green LED on the front of the chassis comes on and the fan operates. If this does not happen, see the power-up procedure in the Cisco 3700 Series Routers Hardware Installation Guide.
Messages begin to appear in your terminal emulation program window.
Caution Do not press any keys on the keyboard until the messages stop. Any keys pressed during this time are interpreted as the first command typed when the messages stop, which might cause the router to power off and start over. It takes a few minutes for the messages to stop.
You may see different startup messages:
•If you see the following messages, the router has booted with a configuration file and is ready for initial configuration using the Cisco Router and Security Device Manager (SDM):
yourname con0 is now available
Press RETURN to get started.
See the "Initial Configuration Using Cisco Router and Security Device Manager" section to learn how to configure your router using SDM or to learn how to learn how to obtain SDM and install it on your router.
•If you see the following messages, the router has booted and is ready for initial configuration using the setup command facility or the command-line interface (CLI).
--- System Configuration Dialog ---
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
Would you like to enter the initial configuration dialog? [yes/no]:
To learn how to use the setup command facility to configure the router, see the "Initial Configuration Using Setup Command Facility" section. To learn how to use the CLI to configure the router, see the "Initial Configuration Using the CLI (Manual Configuration)" section.
Note If the rommon 1> prompt appears, your system has booted in ROM monitor mode. For information on the ROM monitor, see the router rebooting and ROM monitor information in the Cisco IOS Configuration Fundamentals Configuration Guide for your Cisco IOS software release. For information about accessing this document, see the "Where to Go Next" section.
6 Perform Initial Configuration
You can configure your router by using one of the following methods:
•Cisco Router and Security Device Manager (SDM)—If your router was purchased with a VPN bundle, SDM is installed on the router. For instructions on configuring your router by using SDM, see the Cisco Router and Security Device Manager (SDM) Quick Start Guide that shipped with your router. See the "Initial Configuration Using Cisco Router and Security Device Manager" section for additional information.
•Setup command facility—You can use the setup command facility to configure basic router information. After the configuration file has been created, you can use the CLI or SDM to perform additional configuration. See the "Initial Configuration Using Setup Command Facility" section for additional information.
•Command-line interface (CLI)—If you prefer to use the Cisco IOS CLI, see the "Initial Configuration Using the CLI (Manual Configuration)" section for instructions on how to use the CLI.
Note You need to understand how interfaces are numbered so that you know which interface you are configuring. If you need help with interface and port numbering, see the "Interface Numbering" section.
Initial Configuration Using Cisco Router and Security Device Manager
If the Cisco Router and Security Device Manager has been installed on your router, the following messages appear at the end of the startup sequence:
yourname con0 is now available
Press RETURN to get started.
For instructions on configuring your router by using SDM, see the Cisco Router and Security Device Manager (SDM) Quick Start Guide that shipped with your router.
For interface numbering information, see the "Interface Numbering" section.
Initial Configuration Using Setup Command Facility
This section shows how to use the setup command facility to configure a hostname for the router, set passwords, and configure an interface for communication with the management network. If you see the following messages at the end of the startup sequence, the setup command facility has been invoked automatically:
--- System Configuration Dialog ---
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
Would you like to enter the initial configuration dialog? [yes/no]:
The setup command facility prompts you for basic information about your router and network, and it creates an initial configuration file. The prompts vary, depending on your router model, the installed interface modules, and the software image. The following example and the user entries (in bold) are shown as examples only.
For interface numbering information, see the "Interface Numbering" section.
Note If you make a mistake while using the setup command facility, you can exit and run the setup command facility again. Press Ctrl-C, and enter setup at the privileged EXEC mode prompt (3700#).
Step 1 To proceed using the setup command facility, enter yes.
Would you like to enter the initial configuration dialog? [yes/no]: yes
Step 2 When the following messages appear, press Return to enter basic management setup:
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
Basic management setup configures only enough connectivity
for management of the system, extended setup will ask you
to configure each interface on the system
Would you like to enter basic management setup? [yes/no]: yes
Step 3 Enter a hostname for the router (this example uses 3725):
Configuring global parameters:
Enter host name [Router]: 3725
The enable secret is a password used to protect access to privileged EXEC and configuration modes.
This password, after entered, becomes encrypted in the configuration.
Step 4 Enter an enable secret password. This password is encrypted (more secure) and cannot be seen when viewing the configuration:
Enter enable secret: xxxx
The enable password is used when you do not specify an enable secret password, with some older
software versions, and some boot images.
Step 5 Enter an enable password that is different from the enable secret password. This password is not encrypted (less secure) and can be seen when viewing the configuration:
Enter enable password: xxxx
The virtual terminal password is used to protect access to the router over a network interface.
Step 6 Enter the virtual terminal password, which prevents unauthenticated access to the router through ports other than the console port:
Enter virtual terminal password: xxxx
Step 7 Respond to the following prompts as appropriate for your network:
Configure SNMP Network Management? [yes]: yes
Community string [public]:
Step 8 A summary of the available interfaces is displayed:
Note The interface numbering that appears is dependent on the type of Cisco modular router platform and on the installed interface modules and cards.
Current interface summary
Any interface listed with OK? value "NO" does not have a valid configuration
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned NO unset up up
FastEthernet0/1 unassigned NO unset up down
Step 9 Choose one of the available interfaces for connecting the router to the management network:
Enter interface name used to connect to the
management network from the above interface summary: fastethernet0/0
Step 10 Respond to the following prompts as appropriate for your network:
Configuring interface FastEthernet0/0:
Use the 100 Base-TX (RJ-45) connector? [yes]:
Operate in full-duplex mode? [no]: yes
Configure IP on this interface? [yes]:
IP address for this interface: 10.1.1.1
Subnet mask for this interface [255.0.0.0]: 255.255.0.0
Class A network is 10.0.0.0, 16 subnet bits; mask is /16
Step 11 After the following messages appear, press Return to save the basic configuration:
The following configuration command script was created:
enable secret 5 $1$Ksjf$za4T2lb3ARS5d1PHVzW5A0
snmp-server community public
interface FastEthernet0/0
ip address 10.1.1.1 255.255.0.0
interface FastEthernet0/1
[0] Go to the IOS command prompt without saving this config.
[1] Return back to the setup without saving this config.
[2] Save this configuration to nvram and exit.
Enter your selection [2]: 2
% You can enter the setup, by typing setup at IOS command prompt
Press RETURN to get started! RETURN
The user prompt appears.
When you have completed the basic configuration tasks, your Cisco router is ready to configure for specific functions. See the "Where to Go Next" section for information about locating documentation for advanced configuration procedures.
Initial Configuration Using the CLI (Manual Configuration)
This section shows how to bring up a command-line interface (CLI) prompt for configuration using the CLI, and it directs you to documentation for the CLI configuration. You can use the CLI if you see the following messages at the end of the startup sequence:
--- System Configuration Dialog ---
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
Would you like to enter the initial configuration dialog? [yes/no]:
If these messages do not appear, SDM and a default configuration file have been installed on the router at the factory. To use SDM to configure the router, see the "Initial Configuration Using Cisco Router and Security Device Manager" section.
For interface numbering information, see the "Interface Numbering" section.
Step 1 To proceed with manual configuration using the CLI, enter no.
Would you like to enter the initial configuration dialog? [yes/no]: no
Step 2 Press Return to terminate autoinstall and continue with manual configuration.
Would you like to terminate autoinstall? [yes] Return
Several messages are displayed, ending with a line similar to the following:
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled <date> <time> by <person>
Step 3 Press Return to bring up the Router> prompt.
flashfs[4]: Initialization complete.
Step 4 Enter privileged EXEC mode.
Note To avoid losing work you have completed, be sure to save your configuration occasionally as you proceed. Use the copy running-config startup-config command to save the configuration to NVRAM.
For configuration using the CLI, see the applicable configuration procedures in the Software Configuration Guide: Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers. See the "Where to Go Next" section for information about accessing this document.
7 Interface Numbering
Each individual interface (port) on a Cisco 3725 router is identified by number as described in the following sections.
WAN and LAN Interface Numbering
The Cisco 3725 router chassis contains the following WAN and LAN interface types:
•Two built-in Fast Ethernet LAN interfaces
•Three slots in which you can install WAN interface cards (WICs)
•One single-width slot (slot 1) in which you can install one network module
•One double-width slot (slot 2) in which you can install one single-width or double-width network module
The numbering format is Interface-type Slot-number/Interface-number. Two examples are:
•FastEthernet 0/0
•Serial 1/2
The slot numbers are as follows:
•0 for all built-in interfaces
•0 for all WIC interfaces
•1 for interfaces in the single-width network module slot
•2 for interfaces in the double-width network module slot
Interface (port) numbers begin at 0 for each interface type, and continue from right to left and (if necessary) from bottom to top.
Figure 14 shows an example of interface numbering on a Cisco 3725 router with:
•A WIC in each WIC slot (containing interfaces Serial 0/0 and Serial 0/1 in physical slot W0, interface Serial 0/2 in physical slot W1, and interface BRI 0/0 in physical slot W2)
•A 2-port T1 network module in slot 1 (containing the following ports: T1 1/0 and T1 1/1)
•A 36-port EtherSwitch network module in slot 2 (containing the following ports: Fast Ethernet 2/0 through 2/35, and Gigabit Ethernet 2/0 and 2/1)
•Two built-in Ethernet 10/100 interfaces—Fast Ethernet 0/0 and Fast Ethernet 0/1
Figure 14 WAN and LAN Interface Numbering
Note The slot number for all WIC interfaces is always 0. (The W0 and W1 slot designations are for physical slot identification only.) Interfaces in the WICs are numbered from right to left, starting with 0/0 for each interface type, regardless of which physical slot the WICs are installed in.
Some examples are as follows:
•If slot W0 is empty and slot W1 contains a 1-port serial WIC, the serial interface in the WIC is numbered Serial 0/0.
•If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port serial WIC, the serial interfaces in physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the serial interface in physical slot W1 is numbered Serial 0/2.
•If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port BRI WIC, the serial interfaces in physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the BRI interface in physical slot W1 is numbered BRI 0/0.
Voice Interface Numbering
Voice interfaces are numbered as follows:
chassis-slot/voice-module-slot/voice-interface
