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User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform
Chapter 1
DDR Configuration
1-76
Quidway(config)# chat-script Quidway(config)#chat-script yaho "" AT&F OK
ATE0S0=0&C1&D2 OK AT&W
Quidway(config)# interface serial 0
Quidway(config-if-Serial0)# start-chat yaho
II. Check whether network layer address is configured at relevant interface
If no network layer address has been configured at the logic dial interface or at the
physical interface directly enabling DDR, then, when the network layer searches for
routers, it cannot find the dial interface, so that DDR cannot dial. The configurations in
Example 1 below are wrong, because no IP address is configured at the interface.
Example 2 shows correct configurations obtained by modifying Example 1, with IP
address configured at the interface.
Example 1: wrong configurations in which IP address is not configured
Quidway(config)# dialer-list 1 protocol ip permit
Quidway(config)# interface bri 0
Quidway(config-if-Bri0)# dialer-group 1
Quidway(config-if-Bri0)# dialer map ip 100.1.1.1 8810154
Example 2: correct DDR configuration (the bold-typed part is added)
Quidway(config)# dialer-list 1 protocol ip permit
Quidway(config)# interface bri 0
Quidway(config-if-Bri0)# ip address 100.1.1.3 255.255.255.0
Quidway(config-if-Bri0)# dialer-group 1
Quidway(config-if-Bri0)# dialer map ip 100.1.1.1 8810154
III. Check whether dialer-group is configured
The dialer-group must be configured on logical dial interface or the physical interface
directly enabling DDR, otherwise DDR will not process packets sent from and received
by the dial interface. As shown in the following example 1 is a wrong configuration, in
which no dialer-group is configured on the interface, while shown in example 2 is a
correct configuration in which the error is corrected by configuring dialer-group on the
interface
Example 1: wrong DDR configuration without dialer-group.
Quidway(config)# dialer-list 1 protocol ip permit
Quidway(config)# interface bri 0
Quidway(config-if-Bri0)# ip address 100.1.1.2 255.255.255.0
Quidway(config-if-Bri0)# dialer map ip 100.1.1.1 8810152
Example 2: correct DDR configuration (the bold-typed part is added)
Quidway(config)# dialer-list 1 protocol ip permit
Quidway(config)# interface bri 0