Cisco Systems 700 User Manual

Cisco 700 Series Router Configurat ion Guide

Software Release 4.4.

Corporate Headquarters

Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com

408 526-4000

Tel:

800 553-NETS (6387)

Fax:

408 526-4100

Text Part Number: OL-0184-01

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 B E ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION 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 environm ent. This equ i pm ent 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. Opera tion 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 n ot installed in accor dance with Cisco’s insta llation instruction s, it may cause interference wit h radio an d television r eception. 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 interfer ence in a resident ial 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 digi tal dev ice s. I n tha t ev ent , y ou r r i ght to us e th e e q uipm ent ma y be li mite d by F CC r e gul at ions , a nd yo u m ay be requ ired to cor rect any interference to radio or televi sion commu nications at your own e xpense.

You can determine whether your equ ipment is cau sing interfere nce by turning it o ff. If th e interference s tops, it was probably caused by the Ci sco equipment or one of its peripheral devices. If th e equ i pm ent 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 televisi on 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 an d the tele vision 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 (U CB ) as part of

UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE

PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Access Registrar, AccessPath, Any to Any, AtmDirector, CCDA, CCDE, CCDP, CCIE, CCNA, CCNP, CCSI, CD-PAC, the Cisco logo, Cisco Certified Internetwork Expert logo, CiscoLink, the Cisco Management Conne ction logo, the Cisco NetWorks logo, the Cisco Powered Network logo, Cisco Systems Capital, the Cisco Systems Ca pital logo, Cisco Systems Networking A cademy, th e Ci sco Technologies l ogo, ConnectWay, ControlStr eam, Fast Step, FireRunner, GigaStack, IGX, JumpStart, Kernel Proxy, MGX, Natural Network Viewer, NetSonar, Network Registrar, New World, Packet, PIX, Point and Click Internetworking, Policy Builder, Precept, RouteStream, Secure Script, ServiceWay, SlideCast, SMARTnet, StreamView, The Cell, TrafficDirector, TransPath, ViewRunner, VirtualStream, VisionWay, VlanDirector, Workgroup Director, and Workgroup Stack are trademarks; Changing the Way We Work, Live, Play, and Learn, Empowering the Internet Generation, The Internet Economy, and The New Internet Economy are service marks; and Asist, BPX, Catalyst, C isco, C isco IO S, the Cisco IO S logo, Cisco Systems, the Cisco System s logo, the Cis co Syst ems Cis co Press logo, Enterprise/Solver, EtherChannel, EtherSwitch, FastHub, FastLink, FastPAD, FastSwitch, IOS, IP/TV, IPX, LightStream, LightSwitch, MICA, NetRanger, Registrar, Strata View Plus, Stratm, TeleRouter, and VC O are registered trademar ks of Cisco Systems, Inc. in th e U.S. and certain other countries. All other trademarks mentioned in this document are the property of their respective owners. The use of the word partner does not imply a partnership relationshi p be twe en Cis co and any of its resellers. (9906R)

About This Manual vii

Related Documentation viii Conventions ix

Chapter 1 Overview 1-1

Supported Protocols 1-1 Software Images 1-2 Administrative Configuration Options 1-3

Chapter 2 Using Profiles wit h Cisco 700 Series Routers 2-1

Profile Overview 2-1

Profiles and Connections 2-2

System and Profile Parameters 2-2

System Mode Parameter Set 2-3 Profile Mode Parameter Set 2-3 Permanent Profiles 2-4

Creating and Modifying P r ofiles 2-5

Displaying Profile Configurations 2-5 Removing Profile-Based Values 2-5 Deleting Profiles 2-6 Changing Profile Na mes 2-6

CONTENTS

Incoming Calls 2-6 Outgoing Calls 2-7

Chapter 3 Basic Configurat ions 3-1

Basic Configuration Concepts 3-1

Bridges and Routers 3-2 Profiles 3-2 LANs and WANs 3-2 Current Configura tion 3-3 Remote and Central Sites 3-4

Contents iii

Password and Secret 3-4 Additiona l Reference 3-4

Starting Point 3-4

Setting SPID Autodetection (North America only) 3-5 Setting SPIDs Man ually (North America only) 3-6

Bridging with a Cisco 700 S eries Router 3-7

Cisco 700 Series Router Bridging Instructions 3-8

Routing IP with a Cisco 700 Series Router to an ISP 3-9

Routing a Cisco 700 Series Router to an ISP Instructions 3-11

Routing IP to a Central Site 3-11

Central Site IP Routing Command Summary 3-13

Routing IP and IPX On-Demand 3-14

On-Demand IP and IPX Routing with PPP Instructions 3-16 Central Site On-Demand IP and IPX Routing with PPP Commands 3-17

Chapter 4 Using CHAP 4-1

SPID Detection (North America only) 4-2 IP Static Routing and Callback with CHAP Authentication 4-2

Remote Cisco 765 Comma nd Summary 4-3

IP Static Routing with CHAP Authentication and MLP 4-4

Remote Cisco 765 Comma nd Summary 4-5

IP Static Routing with PAP Authentication and MLP 4-6

Remote Cisco 765 Comma nd Summary 4-7

IP Unnumbered Static Routing and CHAP with MLP 4-8

Remote Cisco 765 Comma nd Summary 4-9

IP Static and IPX Static Routing with CHAP and MLP 4-10

Remote Cisco 765 Comma nd Summary 4-11

IPX Static Routing with CHAP and MLP 4-12

Remote Cisco 765 Comma nd Summary 4-13

Multilink PPP Encapsulation 4-14

Cisco 700 Series Router Configuration Guide

Dynamic Routing Prot ocols 4-14 Bridging to a Router Running Cisco IOS Software 4-15

Chapter 5 Configuring DHCP Relay, DHCP Server, and PAT 5-1

DHCP Description 5-2

DHCP Server Application Notes 5-2 DHCP Relay Application Notes 5-3

PAT Description 5-3

PAT Application Notes 5-3

IPCP Description 5-4

IPCP Address Negotiation Application Note s 5-4

PPP IPCP Negotiation Example 5-5

Cisco 765 Series Router Commands 5-5 Verify the Configuration 5-6

DHCP Relay with IPCP Negotiation Example 5-6

Cisco 765 Series Router Commands 5-6 Verify the Configuration 5-7

DHCP Server with IPCP Negotiation Example 5-7

Cisco 765 Series Router Commands 5-8 Verify the Configuration 5-8

PAT with IPCP Single-Destination Negotiation Example 5-9

Cisco 765 Series Router Commands 5-10 Verify the Configuration 5-10

DHCP Server and PAT with IPCP Single-Destination Negotiation Example 5-11

Cisco 765 Series Router Commands 5-12 Verify the Configuration 5-12

DHCP Server with PAT and IPCP Dual-Destination PPP Negotiation Example 5-13

Cisco 765 Series Router Commands 5-14 Verify the Configuration 5-15

Contents v

Chapter 6 Configuring Remote CAPI 6-1

CAPI and RVS-COM 6-2

Supported D-Channel Protocols 6-3 Supported Appli cations 6-3 Remote CAPI Router Commands 6-3

Configuring the Cisco 700 Router as an RCAPI Server 6-4

RCAPI Command Summary 6-4 Verify the Configuration 6-5

Appendix A Token Card and Cisco Secure Authent ication Support A-1

Token Caching A-2

Cisco 700 Series Router Configuration Guide

About This Manual

This chapter discusses the organization, relate d docum entation, and convention s of the Cisco 700 Series Router Configuration Guide.

This document is organized as follows:

• Chapter 1, “Overview,” provides a brie f overview of Cisco IOS-700 software and

supported protocols.

• Chapter 2, “Using Profiles with Cisco 700 Series Routers,” describes a set of

user-def i ned parame ters group ed in a customize d prof ile and assoc iate d with a specif ic remote device.

• Chapter 3, “Basic Configurations,” describe s how to connect a Ci sco 700 series router

to an Internet service provider (ISP) or to a cent ral site, such as your company network.

• Chapter 4, “Using CHAP,” describes how to connect a Cisco 700 series router to a

router running Cisco IOS software.

• Chapter 5, “Configuring DHCP Relay, DHCP Server, and PAT,” describes ho w to

config ure Dynamic Host Conf i gurati on Prot ocol (DHCP ) relay, DHCP server, an d Port Address Translation (PAT) on the Cisco 700 series router.

• Chapter 6, “Configuring Remote CAPI,” describes ho w to configure Remote Common

Application Programmers Interface (CAPI) and the ISDN Device Control Protocol (ISDN-DCP) on the Cisco 700 series router.

• Appendix A, “Token Card and Cisco Secure Authentication Support, ” describes the

Token Card and Cisco Secure Authentication Support security features.

About This Manual vii

Con ven tions

This publication uses the following conventions to convey instruc tions and information:

• The caret character (^) represents the Control key.

For exampl e, the k ey combina tions ^D and Ctrl -D are equi v alent: Bot h mean hold do wn the Control key while you press the D key. Keys are indic ated in capitals, but are not case sensitive.

• A string is defined as a nonquoted set of characters.

There are a f e w st rings t hat i ncl ude quot ation marks as part o f th e st atement . The refore, common practice is not to include the quotation marks unless the y are included in the statement. For example, set the SNMP community st ring to public does not use

quotation marks around the string “public” because when you enter the string, you would not include the quotation marks.

Command descriptions use these conventions:

• Ve r ti ca l b ar s ( | ) se pa r at e al ternative, mu tu ally exclu s ive, elements.

• Square brackets ([ ]) indicate opt ional elements.

• Variables for which you supply values are in italic.

Conventions

• Examples that contain system prompts denote interactive sessions, indicating the user

enters the command at the prompt. The system prompt indicates the current command mode. For example, the prompt rout er:2503> indicate s profile mode. The exception is when a list of commands is provided in an example configuration; the prompt is not shown for the sake of clarity.

• Fixed inf ormation you enter i s in boldface screen font . Variable infor matio n you

enter is in it alic.

• Terminal session s and information the system di sp lays are in screen font.

• Nonprinting chara cters, such as passwords, are in angle brackets (< >).

The command synt ax contain s a combin at ion of bold a nd re gula r upperca se and lo we rcase alphanumeric charac ters. You can enter the full te x t of the commands , or you can ente r the abbre viate d form . The abbr ev iated f orm con sis ts of t he fi rst ch ara cters in ea ch wor d, sh own in uppercase bol d in the c ommand synt ax. T he uppe rcas e bold cha racte rs ar e the mini mum you must enter for the command to be recogni zed and executed.

About This Manual ix

Conventions

The actual c ommands you e nt er are not case sens iti v e. T he capit al izat ion and b old type ar e used in this manual only to dif ferentiate the characters requ ired for th e abbreviated for ms of commands.

For example, The syntax of the set system command is as fol l ows:

SEt SYstemname [systemname]

The complete version of the set system command can be entered at the command prompt as foll ows :

>set systemname

systemname

The abbreviated version of th e sam e comm and can be entered as follows:

>se sy

systemname

Note Means reader take note. Notes contain helpful s uggestions or refer ences to m ateria ls

systemname

not contained in this manual.

Timesaver This symbol me ans the described action saves time. You can save

time by performing the action described in the paragraph.

Caution This symbo l means reader be careful. In this situation, you mi ght do

something that could re sult in equipment damage or loss of data.

Cisco700 Series Router Conf iguration Guide

Overview

Cisco 700 series routers co nnect small off ice Et hernet LANs t o corporat e networks through Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) lines. After config uration, the router automatically routes packets to and from remote destinations using IP or Internetwork Packet Exchange (IPX).

The Cisco 700 series router is a fixed co n fig u r at io n router. The rout er operating sys t e m is called Cisco IOS-700 software and is unique to the Cisco 700 series router.

Supported Protocols

The Cisco 700 series routers support the following protocols :

• IP

CHAPTER

• IPX

• Internet Protocol Control Protocol (IPCP)

• Internet Control Message Protocol (ICMP)

• Internetwork Packet Exchange Control Prot ocol (IPXCP)

• Point-to-Point Protocol (PPP)

• Bridge Control Protocol (BCP)

• Multilink PPP (MLPPP)

• Address Resolution Protocol (ARP)

• Service Advertisement P r otocol (SAP)

• Password Authentication Protocol (PAP)

Over view 1-1

Software Images

• Trivial File Transfer Protocol (TFTP server)

• Simple Network Management Protocol (SNMP)

• Routing Information Protocol (RIP) for IP and IPX

• Trigge red RIP for IP

• Challenge Handshake Auth en ticatio n Protocol (CHAP)

• Dynamic Host Configuration Protocol (DHCP)

• Port Address Translation (PAT)

• Remote Common Applica tion Programmers Interf ace (RCAPI)

• ISDN Device Control Protocol (ISDN-DCP)

Software Images

The Cisco 700 Series routers run a proprietary Cisco soft ware (Cisco IOS-700 software) image, which is different than traditional Cis co IOS software. The image you use varies, depending on the region in which the router is used and what feature set you desire. The image name, fo r exa mple, c 760-in. r- TPH.43-1. bin , design at es the re gion and featu res. The regio n s are as follows:

1-2

• US for use in North America

• NET3 for use in Europe

• TR6 for use in Germany

• INS for use in Japan

• TPH for use in Australia

The features are in d icated as follo w s:

• Internet Ready (IP onl y, 30 users with data compression on) images have a "b"

designati on.

• Internet Re ady X.25 (IP only , 30 LAN de vices, compression, X.25) images have a "bxd"

designati on.

Cisco700 Series Router Command Reference

Administrati ve Configuration Options

• Remote Office (IP/IPX, 1500 LAN devices, compression) images have an "r"

designation.

• Remote Off ice X.25 (IP/IPX, 1500 LAN devices , compression, X.25) images have an

"rxd" designation.

So the example image named "c760-in.b-TPH.43-1.bin" is a Serie s 760 router image software Release 4.3(1) with the Internet Ready feature set for Australia. (All Cisco 700 series routers run Series 760 rout er im ages. There are no Series 770 router im age s.)

You can verify the image loaded on your router by entering the command-line prompt. The following examp le shows a router running a Cisco 760 (c760) image for the United St ates (US), rel ease 4.0(1), and u sing the Remote Off ice (r) fea ture set:

guest> version Software Version c760-in.r.US 4.0(1) - Jan 14 1997 19:00:23 Cisco 766 ISDN Stack Revision US 2.10 (5ESS/DMS/NI-1)

Administrative Configuration Options

You can configure routers through the configuration port or across an IP network using Telnet. In addition, Cisco IOS-700 software supports Cisco 700 Fast Step software applications. These tools are on the Ci sc o700 Fast Step CD-ROM in the Cisco 700 Quick Reference Guide.

version command at the

Over view 1-3

Administrati ve Confi guration Options

1-4

Cisco700 Series Router Command Reference

CHAPTER

Using Profiles with Cisco 700 Series Routers

A profile is a set of configuration parameters associated with ports on the router or WAN devices.

This chapter contains the following sections:

• Profile Overview

• System and Profile Parameters

• Creating and Modifying Profiles

• Incoming Calls

• Outgoing Calls

Profile Overview

There are two modes in which you can set parameters, the system mode and the profile mode. System m ode parameters affect the configur ation on a global level. Profi les are sets of local parameters. Profile mode parame ters affect how the router handles the connection to a device.

You do not have to reconfigure the router every time you connect to a different de vice. Instead of using one set of configuration parameters for all devices, you can use different profiles to communicate with a variety of devices.

For e xample, you can creat e a user -d ef ined prof i le c alled 250 0 that conta in s the para meters to be used when communicating with a Cisco 2500 series router over the WAN. You can customize your Cisco 700 series router to maintain up to 17 user -defined profiles. P r ofiles are saved in the Cisco 700 series router nonvolatile RAM (NVRAM).

Using Profiles with Cisco 700 Series Routers 2-1

System and Profile Parameters

In addition to user-defined profiles, there are three permanent profiles, Internal, LAN, and Standard. The Internal profile stores parameters used to communicate between the LAN and WAN ports on the Cisco 700 series router . The LAN profile stores paramet ers that config ure the LAN port on the router. The Standard profile is the defaul t profile. If authentication is not requir ed and the destination device you are connecting to does not have a user-defin ed profile, the router uses the Standard profile.

Profiles and Connections

Profiles are either active or inactive. An active profile creates a virtual connection to the remote device associated with th e profile. A virtual connection is a connection without physical channels. After creating a virtual connection, an on-demand call can be made to the asso ciated rem o t e d evice to estab l ish a physical connection.

A physical connection is a dynamically created pipeline of packets from the Cisco 700 series router to a switch on the WAN. All connections are associated with the profile that defines the configuration of the connecti on.

Virtual and physica l connections behave similarly; the diffe r ence is that physical connections forw ard packet s to the WAN. Virtua l connections monitor packet tr aff ic on the

LAN until a deman d filter “sees” that a pa cket is destined f o r the WAN and initiates a call to the switch, opening the physical connection. Once the call is established, the virtual connection be com es an active physical connection, and the packets move through the pipeline.

System and Profile Parameters

The system is composed of both system mode parameters, user-defined profiles, and permanent profiles. System mode parameters can be changed only in system mode. The prompt indicates you are in system mode by displaying nothing or the route r name. An example of the prompt is shown below:

Router_name>

If you are in profile mode, the profile name appears on the prompt, sepa rated from the system name by a colon (:). An example of the prompt is shown below:

Router_name:Profile>

2-2

Cisco700 Series Router Configuration Guide

All profi les are based o n the profil e templa te and inherit the system-le v el valu es. When you create a new profile, its default values ar e taken from the p r ofile template.

System Mode Parameter Set

System mode parameters affect the r o u ter as a system. Table 2-1 lists the system parameters.

T able 2-1 System Para meter Set

Caller ID pa ra m e ters Call wait in g PPP Date and time Country gr oup Screen l ength Directory number(s) Address age time Screen echo Delay ti me Local and remote acces s SNMP Forwarding mode Phone 1 and 2 SPIDs Multid es tinatio n di a lin g PPP clie nt pa ssword Switch typ e Numbering plan PPP clien t secret System password Patterns Voice priority Power Source 1 detect Passt hru Compression System name PPP auth e nt ic ation

1 PPP = Point-to- P oint Protocol 2 SNMP = Simple Network Management Protocol 3 SPID = service profile identifier

System Mode Parameter Set

parame ters

parameters

Profile Mode Parameter Set

Changes made to profile mode parameters in system mode affect the profile template. When a profile is cre ated, it in herits the matchi ng system mode paramet ers from the profi le template. Any changes to parameters in profile mode apply only to that profile. Changes made to prof ile par ameters in s ystem mode are stored in th e prof ile templa te. When you use the set user command to create a user-defined profile, the default parameters for the new profile are taken from system mode.

Using Profiles with Cisco 700 Series Routers 2-3

System and Profile Parameters

Table 2-2 lis ts the parameters that can be conf igured in a profile.

Table 2-2 Profile Parameters

Bridging Line speed PPP authentication (outgoing) Ringback number Auto calling All IP parameters, including filters Passt hrough Demand PAP password (client and host) Learning Timeout All IPX parameters, including filters Subnet mask Called nu mber CHAP secret (client and host) Protoco l Encapsul ation Bridge f ilters (a ddress, typ e, and user- defined) Loopback

Permanent Profiles

Cisco 700 series routers contain three permanent profiles . Permanent profiles can be modified, but they cannot be deleted. The permanent profiles are as follows:

LAN Determines ho w data is passed from the router to the LAN. This profile

is commonly used for connec tions made directly to the local network.

2-4

Internal Determines ho w dat a is pass ed bet ween the bridge e ngine a nd the IP/ IPX

router .

Standard The default profile. If authent ication is set to non e and a profile does not

exist for the WAN switch, the r outer uses the St andard profile b y default. If authentication is required and no prof ile is found, the call is drop ped.

The decision to use the LAN or Internal profile involves some knowledge of your network design and whether you are bridging or routing t o remote sites (or a combination of both). It is be st t o use the LAN prof il e inst ead of th e Inte rna l prof il e to si mplif y t he con f igurati on. You can easily associate the LAN profile with the Ethernet interface and the user-defined profiles with the ISDN interface.

Sometimes situations arise (very infrequent) where you must rou te a protocol to one site and bridge the same protocol to another site. Simply leave the LAN profi le as a bridging profile, and use the Internal profile for all routed protocol information.

Cisco700 Series Router Configuration Guide

Creating and Modifying Profiles

A new profile is created with the set user command. When you create a ne w profile, you automa tically enter profile mode for that profile. The followin g example creates a user profile called tomd. Enter the set user command to create a profile using the profile template for the default values of the parameters, as follows:

Host> set user Host:tomd>

Notice that th e profi le mode is indi cated by th e prompt, which appe ar s as the sys tem name and the profile name, separated by a colon. While this prompt is displayed, modifications to the para meters only affec t the parame ters in the profi le. The ch anges do n ot affe ct system mode parameters or other profiles.

The cd command is used to change to system mode or to another profile. Following is an exampl e of th e cd command used to change to a perm anent pro file called LAN:

Router_name> cd LAN Router_name:LAN>

Note that the prompt include s the name o f the profi le. You can now modi fy the LAN prof ile parameters.

tomd

Creating and Modifying Profiles

Displaying Profile Configuratio ns

The show commands dis play the values as sociated with a prof ile parameter in prof ile mode. The commands work in system mode to show the valu es associated with parameters i n the profile template.

In profile mode, some show commands only display profile paramete rs . Parameter values that have been redefined in profile mode are indic ated with a <*>. All other paramete r values ar e in h erited fr o m th e pr ofi l e te m p la te.

Removing Profile-Based Values

You can remove any parameter value within a profile with the unset command. The parameter you removed inherits its value from the system mode.

Using Profiles with Cisco 700 Series Routers 2-5

Incoming Calls

In the following example, the profile parameter number is removed from the profile by using the unset command:

Host:Profile> unset number

Deleting Profiles

The reset user comman d deletes a user-defined pr o file fr o m th e r outer. The three permanent profiles (LAN, Internal, and Standard) cannot be deleted. This command also closes any conne ction associated with the profile.

In the followi ng example, the tomd profi le is removed from the system by using the resetuser command:

Host:Profile> reset user tomd

Changing Profile Names

The set profile user command changes the name of an existing profile. Enter this command while i n prof ile mode for the profi le you wa nt to affec t. In the follo wing e xample, the profile name is being changed from 2500 to 4500:

766:2500> set profile user 4500 766:4500>

Incoming Calls

When th e ro ut e r re c eives an incom in g call, the rou t er s ea r ch es both act ive and inactive profiles for a profile with the same name as the calling de vice. If it finds a profile with the matching user ID, the router uses the conf iguration parameters of that profile while communicating with the remote device. If the profile is inactive, it is automa tically activated for the duration of the connection.

When the call is finished, the physical link between the two devices is disconnected. However, the virtual conne ction to the remote router might be configured to remain acti ve.

2-6

Cisco700 Series Router Configuration Guide

If the profile is configured to remain active after a link disconnects, a virtual connection remains. The vir tual c onnect ion monit ors t he LAN t raf fi c. If pa cket s dest ined for th e WAN are detected, the router opens up the physical connection and forwards the packets.

If the profi le is configur ed to become inacti ve after a link dis connects, both the physical link and the virtual conne ction to the remote router ar e disconnected until another call is received f rom the same remote router.

Outgoing Calls

Outgoing calls requi re that the associated user- defined profiles be set to active, th at the set auto command be on, a nd t hat a phone number to c all be stor ed in th e pr of ile. If the pr of il e

is inactive, a number to dial is not available to the router.

Outgoing Calls

Using Profiles with Cisco 700 Series Routers 2-7

Outgoing Calls

2-8

Cisco700 Series Router Configuration Guide

CHAPTER

Basic Configurations

This chapter conta ins basic conf iguration e xamples for connecti ng a Cisco 700 series router to an Internet service provider (ISP) or to a central site, such as your co mpany network. It is assumed t hat your rout er is cable d as describe d i n the Ci sco 700 Quick Ref er enc e Guide. Before you proceed with the examples in this chapter, have the information regarding ordering the ISDN li ne an d the connection information in the Cisco 700 Quick Reference Guide (shipped with your router package) available.

The chapter is written so that a kno wledge able begi nne r can perform a basic config uratio n of the router, guided by the examples. Expl anations are kept to a mi nimum, but the y do show how the individual commands fit into the framework of a configuration.

This chapter has the following sections:

• Basic Configuration Concepts

• Starting Point

• Setting SPIDs Manually (North America only)

• Bridging with a Cisco 700 Series Router

• Routing IP with a Cisco 700 Series Router to an ISP

• Routing IP to a Central Site

• Routing IP and IPX On-Demand

Basic Configuration Concepts

The information in this se ction describes basic networking concepts as they relate to the Cisco 700 series router and the examples presented. If you have some experience with Cisco 700 series routers, you can skip this section.

Basic Configura ti ons 3-1

Basic Configuration Concepts

Bridges and Routers

Routers forward packets on to specific network segments based on a logical network address, reducing network traff ic by kee ping unnecessary pack ets off network s egments by only forwarding packets to segments as required.

A bridge joins individual network segments into a single network. The bridge floods packets on to all the network segments it is connected to. In other words, bridges offer simplicity and routers offer a greater degree of control. Cisco 700 series routers can function as a bridge and a router.

Profiles

Profiles are logically organized sets of commands for each connection that can be customized and stored independently. This allows you to conf igure your router for more than one connec tion. There are two types of profiles , permanent and user-defined. The Cisco 700 Series Router Co mmand Ref erence publication cont ains a n e xten si v e discus si on on profiles. It is important to understand the use of profiles before attempting to configure your router.

LANs and WANs

Cisco 700 series routers have a “LAN side” and a “WAN side.” The LAN s ide of the route r is the Ethernet 10BaseT conne ction wher e your computer (or another short-ra nge networ k device ) is connected to the router. The WAN s ide is ISDN. The configuration commands can affect function on one or both sides of the router . Which side i s affected depends upon the command and the pr ofile containing the command.

3-2

Cisco 700 Series Router Configuration Guide

Current Configuration

You can display the current configuration at any time using the show configuration command. If you is sued the c ommand i n sys t em mode , sy stem mode comma nds di spla y. If you issue the command in profile mode, profile mode commands display. An asterisk (*) next to a v alue ind icate s the v alue has been m odif ie d from t he d ef ault v a lue. The c ommand is entered as follows:

>show config

Basic Configura ti ons 3-3

Basic Configuration Concepts

The following sample display shows output for the Cisco 700 series routers, from the show configuration command in system mode:

Host> show config System Parameters

Environment

Screen Length 20 Echo Mode ON CountryGroup 1

Bridging Parameters

LAN Forward Mode ANY WAN Forward Mode ONLY Address Age Time OFF

Call Startup Parameters

Multidestination OFF

Line Parameters

Switch Type 5ESS

Call Parameters Link 1 Link 2

Retry Delay 30 30

Profile Parameters

Bridging Parameters

Bridging ON Routed Protocols Learn Mode ON Passthru OFF

Call Startup Parameters

Encapsulation PPP

Line Parameters

Line Speed AUTO Numbering Plan NORMAL

Call Parameters Link 1 Link 2

Auto ON ON Called Number Ringback Number

Remote and Central Sites

In the e xampl es, the Cisc o 700 series router you a re conf igur ing is referre d t o as the remote router. This is strictly for identif ication purposes and does not have anything to do with geography or the physical location of the router.

3-4

Cisco 700 Series Router Configuration Guide

Passwo rd and Secr et

There a re s e ve ra l ty pes of a uth ent ic at ion, su ch as P as sw ord Au t hen ticat ion Pr oto col (PAP) and Challenge Handshake Authentication Protocol (CHAP). To avoid confusion, the PAP password is r eferred t o a s pass word, and t he CHAP s ecre t pass word is referre d to a s secret. The PAP password is pl ain text. The CHAP secret is encrypted.

Additional Reference

For more informati on on the commands, basics of networking, profiles and so forth, refer to the Cisco 700 Series Router Command Refer ence publication. The Cisco 700 Series Command Reference publication also contains advanced configuration examples.

Starting Point

This section shows how to set the router to default values and provide basic configuration information use d in all configurati ons. All of the example configuration s assume default valu es unless otherwise indi cated.

Step 1 Use the set default com mand as f ollo ws to be s ure tha t you begin wi th all default

values when co nfiguring your router:

> set def

System-le ve l paramet ers and the pa rameter s in the pe rmanent prof i les ar e set to their default values. Existing user-defined profiles are d eleted and the router reboots.

Step 2 Enter the set directorynumber command (usually a te n-digit local num ber with

no spaces or dashes) to set the ISDN dire ctory numbers.

>set 1 directory number 4085551234 >set 2 directory number 4085551235

You are ready to set Service Profile Identifier (SPID) au tomatic detection. A SPID is a number provided by the ISDN carrier to identify the line configuration of the BRI service. Each SPID points to li ne setup and configuration information.

Basic Configura ti ons 3-5

+ 60 hidden pages