! Listing 5.3:  Multilink PPP using asynchronous modem links
!
!Copyright (C) 2001 by Vincent C Jones. All Rights Reserved.


version 12.0
!
hostname NewYork
!
aaa new-model
aaa authentication login default local
aaa authentication login console enable
aaa authentication login vty local
aaa authentication login dialin local
aaa authentication ppp default local
aaa authentication ppp dialin if-needed local
!
username Brooklyn password secret1
username Bronx password secret2
username Manhattan password secret3
username Queens password secret4
username StatenIs password secret5
! . . .
username Chicago password SharedSecret
ip host CallChicago 10.200.0.10
!
interface Loopback20
 description Address for async router dialins
 ip address 10.200.0.20 255.255.255.255
!
interface Loopback25
 description Address for emergency link to Chicago
 ip address 10.200.0.25 255.255.255.255
!
interface Virtual-Template1
 description dial-in by local routers
 bandwidth 33
 delay 15000
 ip unnumbered Loopback20
 no ip route-cache
 ip tcp header-compression passive
 no keepalive
 no peer neighbor-route
 no peer default ip address
 ppp authentication chap
!
interface Group-Async1
 description Async interfaces in Dialer Pools
 no ip address
 encapsulation ppp
 no ip route-cache
 async default routing
 async mode dedicated
 dialer in-band
 dialer pool-member 100
 pulse-time 3
 ppp authentication chap ms-chap pap
 group-range 1 13
!
interface Group-Async2
 description Async interfaces reserved for backup to Chicago
 no ip address
 encapsulation ppp
 no ip route-cache
 async default routing
 async mode dedicated
 dialer in-band
 dialer pool-member 22 priority 100
 pulse-time 3
 ppp authentication chap
 ppp multilink
 group-range 14 16
!
interface Dialer22
 description Dial OUT to Chicago
 ip unnumbered Loopback25
 encapsulation ppp
 no ip route-cache
 bandwidth 33
 delay 15000
 no keepalive
 dialer remote-name Chicago
 dialer string 13125551234
 dialer hold-queue 10
 dialer load-threshold 50 either
 dialer pool 22
 dialer-group 1
 ppp authentication chap
 ppp multilink
!
router eigrp 1
 network 10.0.0.0
 no auto-summary
! 
ip classless
ip route 0.0.0.0 0.0.0.0 10.200.0.1 150
ip route 0.0.0.0 0.0.0.0 10.200.0.10 160
ip route 10.200.0.10 255.255.255.255 Dialer22
access-list 102 deny   eigrp any any
access-list 102 permit ip any any
!
dialer-list 1 protocol ip list 102
!
line 1 16
 modem InOut
 modem autoconfigure type usr_courier
 transport preferred none
 transport input all
 speed 115200
 flowcontrol hardware
!
end