User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform Chapter 1
DDR Configuration
1-63
Quidway(config-if-Serial0)# dialer in-band
Quidway(config-if-Serial0)# dialer-group 1
Quidway(config-if-Serial0)# dialer map ip 100.1.1.2 8810052
Quidway(config-if-Serial0)# dialer map ip 100.1.1.2 8810060
2) Configure router B:
Quidway(config)# dialer-list 1 protocol ip permit
Quidway(config)# interface dialer 0
Quidway(config-if-Dialer0)# ip address 100.1.1.2 255.255.255.0
Quidway(config-if-Dialer0)# dialer in-band
Quidway(config-if-Dialer0)# dialer-group 1
Quidway(config-if-Dialer0)# interface serial 0
Quidway(config-if-Serial0)# physical-layer async
Quidway(config-if-Serial0)# modem
Quidway(config-if-Serial0)# dialer rotary-group 0
Quidway(config-if-Serial0)# interface serial 1
Quidway(config-if-Serial1)# physical-layer async
Quidway(config-if-Serial1)# modem
Quidway(config-if-Serial1)# dialer rotary-group 0
1.6.17 DDR Using Dialer Map as Backup
I. Networking requirements
We have designed two configurations in which the logical interface designed by dialer
map is used as backup interface and as main interface. In the following diagram, we
have configured backup in router A. s0 port of router A is conf igured as dial port, and s1
port is configured as DDN directly connected port of encapsulation PPP.
II. Networking diagram
Router A PSTN
Modem
8810052
8810048
8810060
Router B
Modem
Modem
Figure DC-1-20 Networking diagram of the configuration example of DDR with dialer map as backup
III. Configuration procedure
Solution 1: Logical interface as backup interface