debug dialer map
To display debugging information about the creation and deletion of dynamic dialer maps, use the debug dialer map command to track large-scale dialout (LSDO) and incoming calls that use dynamic dialer maps. This command shows the whole trace including when the map is created and removed.
If an interface is configured for dial-on-demand routing (DDR), and a map to a specified address does not exist, then a dynamic dialer map is created and when the call disconnects, the dialer map is removed.
Note: Do not configure a dialer string or a dialer map on the incoming interface.
In the following sample output from the debug dialer map command, a dialer map is created when an incoming call is connected and removed when that call is disconnected:
Router# debug dialer mapIncoming call connected:
Dial on demand dynamic dialer maps debugging is on
Router#Incoming call disconnected:
*Mar 22 12:19:15.597:%LINK-3-UPDOWN:Interface BRI0/0:1, changed state to up
*Mar 22 12:19:17.748:BR0/0:1 DDR:dialer_create_dynamic_map map created for 184.108.40.206
*Mar 22 12:19:18.734:%LINEPROTO-5-UPDOWN:Line protocol on Interface BRI0/0:1, changed state to up
*Mar 22 12:19:21.598:%ISDN-6-CONNECT:Interface BRI0/0:1 is now connected to unknown R2604
*Mar 22 12:21:15.597:%ISDN-6-DISCONNECT:Interface BRI0/0:1 disconnected from R2604, call lasted 120 seconds
*Mar 22 12:21:15.645:%LINK-3-UPDOWN:Interface BRI0/0:1, changed state to down
*Mar 22 12:21:15.649:BR0/0:1 DDR:dialer_remove_dynamic_map map 220.127.116.11 removed
*Mar 22 12:21:16.647:%LINEPROTO-5-UPDOWN:Line protocol on Interface BRI0/0:1, changed state to down