子下向上拨号连入拨号备份：

Config t

hostname xxxx

enable secret oilsjz

username xxxx password xxxxx

username xxxx password 0 xxxx

no ip domain-lookup

chat-script reset1 "" "ATZ" OK \c

chat-script dial1 ABORT ERROR "" "AT Z" OK "ATDT \T" TIMEOUT 60 CONNECT \c

interface fastEthernet0

ip address 10.179.27.65 255.255.255.192

no shutdown

interface Serial1

backup delay 10 10

backup interface Serial0

ip address 10.179.251.41 255.255.255.252

encapsulation frame-relay

frame-relay interface-dlci 200

no shutdown

interface serial0

phy async

ip address 10.179.251.139 255.255.255.240

async mode dedicated

no shutdown

encapsulation ppp

dialer in-band

dialer idle-timeout 3600

dialer enable-timeout 60

dialer map ip 10.179.251.129 name center-3640 modem-script dial1 ZZZZZZ

dialer map ip 10.179.251.129 name center-3640 modem-script dial1 ZZZZZZ

dialer map ip 10.179.251.129 name center-3640 modem-script dial1 ZZZZZZ

dialer map ip 10.179.251.129 name R-ZZZZ modem-script dial1 ZZZZZZ

dialer hold-queue 50

dialer-group 1

ppp authentication pap chap

ip route 0.0.0.0 0.0.0.0 10.179.251.129

access-list 1 per 10.179.27.64 0.0.0.63

dialer-list 1 protocol ip list 1

router eigrp 100

network 10.0.0.0

line con 0

exec-timeout 0 0

line 1

script reset reset1

modem InOut

transport input all

speed 38400

flowcontrol hardware

line vty 0 4

password oilsjz

login

end

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