# Configure an IP address for interface BRI 2/4/0.
[RouterC] interface bri 2/4/0
[RouterC-Bri2/4/0] ip address 100.1.1.3 255.255.255.0
# Enable traditional DDR on the interface.
[RouterC-Bri2/4/0] dialer circular enable
# Associate the interface with dialer group 1.
[RouterC-Bri2/4/0] dialer-group 1
# Configure the dial string for calling Router A.
[RouterC-Bri2/4/0] dialer route ip 100.1.1.1 8810048
Verifying the configuration
# Verify that Router A can successfully ping Router B and Router C. (Details not shown.)
# Verify that Router B and Router C cannot ping each other. (Details not shown.)
ISDN-based bundle DDR configuration example
Network requirements
As shown in
network segment.
Configure bundle DDR to meet the following requirements:
•
Allow Router A to call Router B and Router C from multiple interfaces.
•
Disable Router B and Router C from calling each other.
Figure 58 Network diagram
Dialer 0
Router A
100.1.1.1/24
Bri2/4/0
Dialer 1
122.1.1.1/24
Configuration procedure
1.
Configure Router A:
# Create dialer group 1 and configure a dial rule for it.
<RouterA> system-view
[RouterA] dialer-group 1 rule ip permit
# Create local users userb and userc for authenticating Router B and Router C, and configure
the service type as PPP for them.
[RouterA] local-user userb class network
[RouterA-luser-network-userb] password simple userb
[RouterA-luser-network-userb] service-type ppp
Figure
58, the interfaces BRI 2/4/0 of Router A, Router B, and Router C are in the same
NT 1
8810048
NT 1
8810052
ISDN
NT 1
8810063
193
Router B
Bri2/4/0
Dialer 0
100.1.1.2/24
Router C
Bri2/4/0
Dialer 0
122.1.1.2/24
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