Huawei v200r001 user manual III. Check whether dialer-group is configured

User Manual - Configuration Guide (Volume 3)	Chapter 1
Versatile Routing Platform	DDR Configuration

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

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