Cisco Systems 700 User Manual 2

CHAPTER
2
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:
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 parametersaffect 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).
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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 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>
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Cisco700 Series Router Configuration Guide
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.
Table 2-1 System Parameter Set
Caller ID parameters Call waiting PPP Date and time Country group Screen length Directory number(s) Address age time Screen echo Delay time Local and remote access SNMP Forwarding mode Phone 1 and 2 SPIDs 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
1 PPP = Point-to-Point Protocol 2 SNMP = Simple Network Management Protocol 3 SPID = service profile identifier
System Mode Parameter Set
1
parameters
2
parameters
3
Profile Mode Parameter Set
Changesmadetoprofilemodeparametersinsystemmodeaffecttheprofiletemplate.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.
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System and Profile Parameters
Table 2-2 lists the parameters that can be configured in a profile.
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
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 how data is passed from the router to the LAN. This profile
is commonly used for connections made directly to the local network.
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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.
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.
Cisco700 Series Router Configuration Guide
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 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 parametersin the profile. The changesdo 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.
tomd
Creating and Modifying Profiles
Displaying Profile Configurations
Theshowcommandsdisplay the valuesassociatedwitha profile 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.
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 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 user command changes the nameofanexistingprofile.Enterthiscommand whilein profile mode for the profile you want to affect. In the following 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.
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Cisco700 Series Router Configuration Guide
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 configured to become inactive after a link disconnects, both the physicallink 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
Using Profiles with Cisco 700 Series Routers 2-7
Outgoing Calls
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Cisco700 Series Router Configuration Guide
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