configuring PPP on Asynchronous ports for Analog d

configuring PPP on Asynchronous ports for Analog dial links

1 configure the modem and Asynchronous ports .

2 Define and configure ppp on the Asynchronous interface

3 configure network layer addresses or addressing schemas and routing as they corresponds to the Asynchronous Interface.

4 Configure the Asynchronous interface for dial-on-deman routing(DDR).

Such as :

         AUX=line1

host_router  --5496870-----PSTN----5496560---remote_router

                          S0172.16.128.2/30                

                                              172.16.2.1/24

chap 认证的方式

hostname host_router

username remote_router password 0 cisco

ip subnet-zero

interface async 1

ip add 172.16.128.1 255.255.255.252

encapsulation ppp

dialer in-band

dialer map p 172.16.128.2 name remote_router broadcast 5496560

async mode interactive

ppp authentication chap

line aux 0

autoselect ppp

login local

modem InOut

modem autoconfigure discovery

transport input all

speed 38400