Practical Exercise Solution
The first step is to build a chat script for the modem, which you learned about in Chapter 3. Second, you apply the configuration to the modem line. Don't forget to verify the line's status with the show line command. Configure PPP and the DDR option on the physical and dialer interfaces that were discussed throughout this chapter's scenarios. Example 5-16 shows the output of the show run command on the Central Site router. You can view all commands necessary to complete the given task.
Example 5-16. show running-config Output
chat-script rstmdm "" "AT&FS0=1&B1&C1&D2&H1&K1&M4&R2" OK
chat-script dialnum ABORT ERROR ABORT BUSY "" "ATDT \T" TIMEOUT 60 CONNECT
!
username remote privilege 15 password 7 05080F1C2243
username user1 privilege 15 password 7 05080F1C2243
!
interface Async65
no ip address
encapsulation ppp
no ip route-cache
dialer in-band
dialer rotary-group 0
async default routing
async dynamic address
async mode interactive
ppp reliable-link
ppp encrypt mppe auto
ppp authentication chap pap ms-chap optional
ppp direction callin
ppp link reorders
!
interface Dialer0
no ip address
encapsulation ppp
no ip route-cache
dialer in-band
dialer map ip 10.1.1.1 name remote 5551212
dialer-group 1
no cdp enable
ppp reliable-link
ppp encrypt mppe auto
ppp authentication chap pap ms-chap optional
ppp direction callin
ppp ipcp accept-address
ppp ipcp wins 172.16.5.1
ppp ipcp mask 255.255.255.0
ppp link reorders
!
dialer-list 1 protocol ip permit
!
line aux 0
autobaud
modem InOut
modem autoconfigure discovery
transport input all
autoselect during-login
stopbits 1
flowcontrol hardware
| 
