Cisco 700 series Manuel utilisateur

CHAPTER

Using Profiles with Cisco 700 Series Routers 2-1

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 mode parameters affect the conﬁguration on a global level. Proﬁles are sets

of local parameters. Proﬁle mode parameters 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 device.

Instead of using one set of conﬁguration parameters for all devices, you can use different

proﬁles to communicate with a variety of devices.

For example, you can create a user-deﬁned proﬁle called 2500 that contains the parameters

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. Proﬁles

are saved in the Cisco 700 series router nonvolatile RAM (NVRAM).

System and Profile Parameters

Cisco700 Series Router Configuration Guide

2-2

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 parameters that

conﬁgure the LAN port on the router. The Standard proﬁle is the default proﬁle. If

authentication is not required and the destination device you are connecting to does not

have a user-deﬁned 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 the proﬁle. A virtual connection is a connection without

physical channels. After creating a virtual connection, an on-demand call can be made to

the associated remote device to establish 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 connection.

Virtual and physical connections behave similarly; the difference is that physical

connections forward packets to the WAN. Virtual connections monitor packet trafﬁc on the

LAN until a demand ﬁlter “sees” that a packet is destined for the WAN and initiates a call

to the switch, opening the physical connection. Once the call is established, the virtual

connection becomes 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 router name. An

example of the prompt is shown below:

Router_name>

If you are in proﬁle mode, the proﬁle name appears on the prompt, separated from the

system name by a colon (:). An example of the prompt is shown below:

Router_name:Profile>

Using Profiles with Cisco 700 Series Routers 2-3

System Mode Parameter Set

All proﬁles are based on the proﬁle template and inherit the system-level values. When you

create a new proﬁle, its default values are taken from the proﬁle template.

System Mode Parameter Set

System mode parameters affect the router as a system. Table 2-1 lists the system

parameters.

Proﬁle Mode Parameter Set

Changesmadetoproﬁlemodeparametersinsystemmodeaffect the proﬁle template. When

a proﬁle is created, it inherits the matching system mode parameters from the proﬁle

template. Any changes to parameters in proﬁle mode apply only to that proﬁle. Changes

made to proﬁle parameters in system mode are stored in the proﬁle template. 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.

Table 2-1 System Parameter Set

Caller ID parameters Call waiting PPP1parameters

1 PPP = Point-to-Point Protocol

Date and time Country group Screen length

Directory number(s) Address age time Screen echo

Delay time Local and remote access SNMP2parameters

2 SNMP = Simple Network Management Protocol

Forwarding mode Phone 1 and 2 SPIDs3

3 SPID = service profile identifier

Multidestination dialing PPP client password Switch type

Numbering plan PPP client secret System password

Patterns Voice priority Power Source 1 detect

Passthru Compression System name

PPP authentication

System and Profile Parameters

Cisco700 Series Router Configuration Guide

2-4

Table 2-2 lists the parameters that can be conﬁgured in a proﬁle.

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:

The decision to use the LAN or Internal proﬁle involves some knowledge of your network

design and whether you are bridging or routing to remote sites (or a combination of both).

It is best to use the LAN proﬁle instead of the Internal proﬁle to simplify the conﬁguration.

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 route a protocol to one site

and bridge the same protocol to another site. Simply leave the LAN proﬁle as a bridging

proﬁle, and use the Internal proﬁle for all routed protocol information.

Table 2-2 Proﬁle Parameters

Bridging Line speed PPP authentication (outgoing)

Ringback number Auto calling All IP parameters, including ﬁlters

Passthrough Demand PAP password (client and host)

Learning Timeout All IPX parameters, including ﬁlters

Subnet mask Called number CHAP secret (client and host)

Protocol Encapsulation Bridge ﬁlters (address, type, and user-deﬁned)

Loopback

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

is commonly used for connections made directly to the local network.

Internal Determines how data is passed between the bridge engine and the IP/IPX

router.

Standard The default proﬁle. If authentication is set to none and a proﬁle does not

exist for the WAN switch, the router uses the Standard proﬁle by default.

If authentication is required and no proﬁle is found, the call is dropped.

Using Profiles with Cisco 700 Series Routers 2-5

Creating and Modifying Profiles

Creating and Modifying Proﬁles

A new proﬁle is created with the set user command. When you create a new proﬁle, you

automatically enter proﬁle mode for that proﬁle. The following 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

tomd

Host:tomd>

Notice that the proﬁle mode is indicated by the prompt, which appears as the system name

and the proﬁle name, separated by a colon. While this prompt is displayed, modiﬁcations

to the parameters only affect the parameters in the proﬁle. The changes do not affect system

mode parameters or other proﬁles.

The cd command is used to change to system mode or to another proﬁle. Following is an

example of the cd command used to change to a permanent proﬁle called LAN:

Router_name> cd LAN

Router_name:LAN>

Note that the prompt includes the name of the proﬁle. You can now modify the LAN proﬁle

parameters.

Displaying Proﬁle Conﬁgurations

Theshowcommandsdisplay the valuesassociatedwithaproﬁle parameter in proﬁle mode.

The commands work in system mode to show the values associated with parameters in the

proﬁle template.

In proﬁle mode, some show commands only display proﬁle parameters. Parameter values

that have been redeﬁned in proﬁle mode are indicated with a <*>. All other parameter

values are inherited from the proﬁle template.

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.

Incoming Calls

Cisco700 Series Router Configuration Guide

2-6

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 command deletes a user-deﬁned proﬁle from the router. The three

permanent proﬁles (LAN, Internal, and Standard) cannot be deleted. This command also

closes any connection associated with the proﬁle.

In the following example, the tomd proﬁle is removed from the system by using the

reset user command:

Host:Profile> reset user tomd

Changing Proﬁle Names

Theset proﬁle usercommandchangesthenameofanexisting proﬁle. Enter this command

whilein proﬁle mode for theproﬁleyouwanttoaffect.Inthefollowing example, the proﬁle

name is being changed from 2500 to 4500:

766:2500> set profile user 4500

766:4500>

Incoming Calls

When the router receives an incoming call, the router searches both active and inactive

proﬁles for a proﬁle with the same name as the calling device. If it ﬁnds a proﬁle with the

matching user ID, the router uses the conﬁguration parameters of that proﬁle while

communicating with the remote device. If the proﬁle is inactive, it is automatically

activated for the duration of the connection.

When the call is ﬁnished, the physical link between the two devices is disconnected.

However, the virtual connection to the remote router might be conﬁgured to remain active.

Using Profiles with Cisco 700 Series Routers 2-7

Outgoing Calls

If the proﬁle is conﬁgured to remain active after a link disconnects, a virtual connection

remains. The virtual connection monitors the LAN trafﬁc. If packets destined for the WAN

are detected, the router opens up the physical connection and forwards the packets.

Ifthe proﬁle is conﬁguredtobecomeinactiveafter a link disconnects,boththephysicallink

and the virtual connection to the remote router are disconnected until another call is

received from the same remote router.

Outgoing Calls

Outgoing calls require that the associated user-deﬁned proﬁles be set to active, that the set

auto command be on, and that a phone number to call be stored in the proﬁle. If the proﬁle

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

Outgoing Calls

Cisco700 Series Router Configuration Guide

2-8

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