CISCO IOS in a Nutshell

Name

dialer-list — global

Synopsis

dialer-list grouplist access-list
dialer-list group protocol protocol {permit | deny | list} access-list
no dialer-list group
            

Configures

Assigns an access list to a dialer group

Default

None

Description

The first version of this command specifies a group number and applies the given access list to that group. The access list defines “interesting” traffic for the dialer group. If traffic matches the access list, it is deemed interesting, and the DDR interface establishes a connection (if one hasn’t been already established).

group

The dialer group number.

list access-list

The access list that defines interesting traffic for this group.

The second version of this command allows you to specify the traffic that brings up the connection without using an external access list. Its parameters are:

group

The dialer group number.

protocol protocol

The protocol to allow (or reject): ip, ipx, etc.

permit

Permits traffic using this protocol.

deny

Denies the entire protocol.

list access-list

Applies an access list to the protocol. Used to single out ports within the protocol.

Examples

The following commands define a dialer group, assign an interface to that dialer group, and specify that the interface should be brought up if traffic matching access list 110 appears on the interface.

interface async 5 dialer-group 10 ! ! Define the access-list for group 10 dialer-list 10 list 110 ! ! Define the list ( all IP traffic to 10.10.1.0 network) access-list 110 permit ip any 10.10.1.0 ...