Specifications

Configuring Dial Backup with Dialer Profiles
How to Configure Dial Backup with Dialer Profiles
DC-447
Cisco IOS Dial Technologies Configuration Guide
Configuring a Dialer Interface
To configure the dialer interface that will be used as an intermediary between a physical interface that
will function as backup interface and the interfaces that will use the backup, use the following commands
beginning in global configuration mode:
Configuring a Physical Interface to Function As Backup
To configure the physical interface that is to function as backup, use the following commands beginning
in global configuration mode:
Configuring Interfaces to Use a Backup Interface
To configure one or more interfaces to use a backup interface, use the following commands beginning
in global configuration mode:
Command Purpose
Step 1
Router(config)# interface dialer number
Creates a dialer interface and begins interface configuration
mode.
Step 2
Router(config-if)# ip unnumbered loopback0
Specifies IP unnumbered loopback.
Step 3
Router(config-if)# encapsulation ppp
Specifies PPP encapsulation.
Step 4
Router(config-if)# dialer remote-name
username
Specifies the Challenge Handshake Authentication Protocol
(CHAP) authentication name of the remote router.
Step 5
Router(config-if)# dialer string dial-string
Specifies the remote destination to call.
Step 6
Router(config-if)# dialer pool number
Specifies the dialing pool to use for calls to this destination.
Step 7
Router(config-if)# dialer-group group - number
Assigns the dialer interface to a dialer group.
Command Purpose
Step 1
Router(config)# interface type number
Specifies the interface and begins interface configuration
mode.
Step 2
Router(config-if)# encapsulation ppp
Specifies PPP encapsulation.
Step 3
Router(config-if)# dialer pool-member number
Makes the interface a member of the dialing pool that the
dialer interface will use; make sure the number arguments
have the same value.
Step 4
Router(config-if)# ppp authentication chap
Specifies CHAP authentication.
Command Purpose
Step 1
Router(config)# interface type number
Specifies the interface to be backed up and begins interface
configuration mode.
Step 2
Router(config-if)# ip unnumbered loopback0
Specifies IP unnumbered loopback.