Specifications

Configuring Dial Backup with Dialer Profiles
Configuration Example of Dialer Profile for ISDN BRI Backing Up Two Leased Lines
DC-448
Cisco IOS Dial Technologies Configuration Guide
Configuration Example of Dialer Profile for ISDN BRI Backing
Up Two Leased Lines
The following example shows the configuration of a site that backs up two leased lines using one BRI.
Two dialer interfaces are defined. Each serial (leased line) interface is configured to use one of the dialer
interfaces as a backup. Both of the dialer interfaces use dialer pool 1, which has physical interface BRI
0 as a member. Thus, physical interface BRI 0 can back up two different serial interfaces and can make
calls to two different sites.
interface dialer0
ip unnumbered loopback0
encapsulation ppp
dialer remote-name Remote0
dialer pool 1
dialer string 5551212
dialer-group 1
interface dialer1
ip unnumbered loopback0
encapsulation ppp
dialer remote-name Remote1
dialer pool 1
dialer string 5551234
dialer-group 1
interface bri 0
encapsulation PPP
dialer pool-member 1
ppp authentication chap
interface serial 0
ip unnumbered loopback0
backup interface dialer 0
backup delay 5 10
interface serial 1
ip unnumbered loopback0
backup interface dialer1
backup delay 5 10
Step 3
Router(config-if)# backup interface dialer
number
Specifies the backup interface and begins interface
configuration mode.
Step 4
Router(config-if)# backup delay enable-delay
disable-delay
Specifies delay between the physical interface going down
and the backup being enabled, and between the physical
interface coming back up and the backup being disabled.
Command Purpose