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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter       Configuring Backup Data Lines and Remote Management
Configuring Data Line Backup and Remote Management Through the ISDN S/T Port
Step 7
interface dialer dialer-rotary-group-number
Example:
Router(config)# interface dialer 0
Router(config-if)#
Creates a dialer interface (numbered 0 to 255) and 
enters interface configuration mode.
Step 8
ip address negotiated
Example:
Router(config-if)# ip address negotiated
Router(config-if)#
Specifies that the IP address for the interface is 
obtained through PPP/IPCP (IP Control Protocol) 
address negotiation. The IP address is obtained 
from the peer.
Step 9
encapsulation encapsulation-type
Example:
Router(config-if)# encapsulation ppp
Router(config-if)#
Sets the encapsulation type for the interface.
Step 10
dialer pool number
Example:
Router(config-if)# dialer pool 1
Router(config-if)#
Specifies the dialer pool to be used. 
In the example, the dialer pool 1 setting associates 
the dialer 0 interface with the BRI0 interface 
because the BRI0 dialer pool-member value is 1.
Step 11
dialer string dial-string# [:isdn-subaddress]
Example:
Router(config-if)# dialer string 384040
Router(config-if)#
Specifies the telephone number to be dialed.
Step 12
dialer-group group-number
Example:
Router(config-if)# dialer group 1
Router(config-if)#
Assigns the dialer interface to a dialer group 
(1–10).
Step 13
exit
Example:
Router(config-if)# exit
Router(config)#
Exits dialer interface configuration mode and 
enters global configuration mode.
Step 14
dialer-list dialer-group protocol protocol-name 
{permit | deny | list access-list-number | 
access-group} 
Example:
Router(config)# dialer-list 1 protocol ip 
permit
Router(config)#
Creates a dialer list for packets of interest to be 
forwarded through the specified interface dialer 
group. 
In the example, dialer-list 1 corresponds to 
dialer-group 1.
For details about this command and additional 
parameters that can be set, see Cisco IOS Dial 
Technologies Command Reference.
Command Purpose