Huawei v200r001 user manual DDR for Inter-Router Callback, Networking requirements

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

Quidway(config-if-Serial2:15)# peer default ip address pool 1

Quidway(config-if-Serial2:15)# dialer-group 1

Quidway(config-if-Serial2:15)# encapsulation ppp

Quidway(config-if-Serial2:15)# ppp authentication chap

1.6.13DDR for Inter-Router Callback

I.Networking requirements

We have designed two implementation solutions: “use ISDN calling line identification callback” and “Use PPP callback”. In the implementation solution “use ISDN calling line identification callback”, routers at both ends need to use ISDN interface for interconnection. In the following configuration procedure, Bri 0 is used to identify ISDN interface, router A is used as callback Server end and router B as callback Client end.

“ISDN calling line identification callback” and “PPP callback” can be used in combination, and users can simply combine the configuration procedures of the two listed below:

II. Networking diagram

Router A	8810152
	ISDN
8810148
	Router B

Networking diagram of ISDN caller identifying callback

		8810052
Router A		PSTN	Modem
			Router B
	8810048
	Modem	Networking diagram of
		PPP callback

Figure DC-1-16Networking diagram of inter-router callback DDR configuration example

III. Configuration procedure

Solution 1: use ISDN calling line identification callback

1)Configure router A:

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

Quidway(config)# interface bri 0

Quidway(config-if-Bri0)# ip address 100.1.1.1 255.255.255.0

Quidway(config-if-Bri0)# dialer-group 1

Quidway(config-if-Bri0)# dialer map ip 100.1.1.2 8810152

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