CCNA Cisco Certified Network Associate Study Guide - FTP Server

Dial-on-Demand Routing (DDR) 513
The command to turn on all IP traffic is shown as follows:
804A(config)#dialer-list 1 protocol ip permit
804A(config)#int bri0
804A(config-if)#dialer-group 1
The dialer-group command sets the access list on the BRI interface.
Extended access lists can be used with the dialer-list command to define
interesting traffic to just certain applications. We’ll cover that in a minute.
Configuring the Dialer Information
There are five steps in the configuration of the dialer information.
1. Choose the interface.
2. Set the IP address.
3. Configure the encapsulation type.
4. Link interesting traffic to the interface.
5. Configure the number or numbers to dial.
Here is an example of how to configure the five steps:
804A#config t
804A(config)#int bri0
804A(config-if)#ip address 172.16.60.1 255.255.255.0
804A(config-if)#no shut
804A(config-if)#encapsulation ppp
804A(config-if)#dialer-group 1
804A(config-if)#dialer-string 8350661
Instead of the dialer-string command, you can use a dialer map,
which provides more security.
804A(config-if)#dialer map ip 172.16.60.2 name 804B
8350661
The dialer map command can be used with the dialer-group command
and its associated access list to initiate dialing. The dialer map
command uses the IP address of the next hop router, the hostname of the
remote router for authentication, and then the number to dial to get there.