Huawei v200r001 user manual DDR in Which the Router Calls Back PC

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

Quidway(config)# dialer-list 1 protocol ip permit

Quidway(config)# user quidwayb password 0 quidwayb callback-dialstring 8810052 Quidway(config)# interface serial 0

Quidway(config-if-Serial0)# ip address 100.1.1.1 255.255.255.0

Quidway(config-if-Serial0)# physical-layer async

Quidway(config-if-Serial0)# modem

Quidway(config-if-Serial0)# dialer in-band

Quidway(config-if-Serial0)# dialer-group 1

Quidway(config-if-Serial0)# dialer callback-server dialstring

Quidway(config-if-Serial0)# ppp authentication pap

Quidway(config-if-Serial0)# ppp callback accept

2)Configure router B:

Quidway(config)# dialer-list 1 protocol ip permit

Quidway(config)# interface serial 0

Quidway(config-if-Serial0)# ip address 100.1.1.2 255.255.255.0

Quidway(config-if-Serial0)# physical-layer async

Quidway(config-if-Serial0)# modem

Quidway(config-if-Serial0)# dialer in-band

Quidway(config-if-Serial0)# dialer-group 1

Quidway(config-if-Serial0)# dialer map ip 100.1.1.1 8810048

Quidway(config-if-Serial0)# ppp pap sent-username quidwayb password 0 quidwayb Quidway(config-if-Serial0)# ppp callback request

1.6.14DDR in Which the Router Calls Back PC

I.Networking requirements

We have designed two implementation solutions: “use user-configured dialer map for callback” and “dynamically create dialer map for callback”. In both solutions, routers are used to allocate IP addresses for PCs.

II. Networking diagram

		8810052
Router A	8810048	Modem
		PSTN
	Modem

PC

Figure DC-1-17Networking diagram of DDR configuration example in which routers call back PCs

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