A new interface configuration command, dialer persistent, allows a dial-on-demand routing (DDR) dialer profile connection to be brought up without being triggered by interesting traffic. When configured, the dialer persistent command starts a timer when the dialer interface starts up and starts the connection when the timer expires. If interesting traffic arrives before the timer expires, the connection is still brought up and set as persistent. The command provides a default timer interval, or you can set a custom timer interval.
To configure a dialer interface as persistent, use the following commands beginning in global configuration mode:
Creates a dialer interface and enters interface configuration mode.
Router(config-if)#ip addressaddress mask
Specifies the IP address and mask of the dialer interface as a node in the destinatiopn network to be called.