12-06-2011 03:17 PM - edited 03-04-2019 02:32 PM
Hi
I try to configure a cisco router to set up a failover between ADSL and ISDN lines.
The ISDN line only works if I call at the right dialer.
ADSL line also works if I call the associated dialer
The problem is that automatically switches between ISDN and ADSL is not working.
Can someone help me to understand the problem in my config file ?
Thank you,
Current configuration : 2635 bytes
!
version 12.4
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname cisco
!
boot-start-marker
boot-end-marker
!
security authentication failure rate 3 log
logging console critical
enable secret 5 XXXXXXXXXXXXXXXX
!
no aaa new-model
!
resource policy
!
!
!
ip cef
ip tcp synwait-time 10
!
!
ip name-server 194.2.0.20
ip name-server 194.2.0.50
isdn switch-type basic-net3
username administrateur privilege 15 secret 5 XXXXXXXXXXXXXXXXXXXX
!
!
!
!
interface FastEthernet0
ip address XXX.XXX.XXX.XXX 255.255.255.248
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat inside
ip nat enable
ip route-cache flow
duplex auto
speed auto
!
interface BRI0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
encapsulation hdlc
ip route-cache flow
dialer pool-member 2
dialer idle-timeout 10
isdn switch-type basic-net3
isdn point-to-point-setup
no keepalive
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface FastEthernet4
!
interface FastEthernet5
!
interface FastEthernet6
!
interface FastEthernet7
!
interface FastEthernet8
!
interface ATM0
no ip address
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
dsl operating-mode auto
!
interface Vlan1
no ip address
!
interface Dialer0
ip unnumbered FastEthernet0
ip mtu 1470
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap callin
ppp chap hostname XXX@XXX
ppp chap password 7 XXXXXXXXXX
!
interface Dialer1
ip address negotiated
ip nat outside
ip nat enable
encapsulation ppp
dialer pool 2
dialer idle-timeout 170
dialer string 0860XXXXXX
dialer-group 2
no keepalive
no cdp enable
ppp authentication chap callin
ppp chap hostname XXX@XXX
ppp chap password 7 XXXXXXXXXXXX
!
ip route 0.0.0.0 0.0.0.0 1.1.1.1
ip route 0.0.0.0 0.0.0.0 Dialer1 50
!
no ip http server
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat inside source list 1 interface Dialer1 overload
!
access-list 1 permit XXXXXXXX 0.0.0.7
dialer-list 1 protocol ip permit
dialer-list 2 protocol ip permit
!
control-plane
!
banner login ^CAuthorized access only!
DIsconnect IMMEDIATELY if you are not an authorized user!^C
!
line con 0
login local
transport output telnet
line aux 0
login local
transport output telnet
line vty 0 4
privilege level 15
login local
transport input telnet
line vty 5 15
privilege level 15
login local
transport input telnet
!
end
12-06-2011 09:41 PM
Hi,
configure the following on your dialer associated with DSL
backup interface dialer (number of your dialer for ISDN)
HTH,
Smitesh
12-07-2011 08:51 AM
Hi,
Why don't you try to use IP SLA:
conf t
ip sla 1
icmp-echo 4.2.2.2
exit
ip sla schedule 1 life forever start-time now
track 123 rtr 1 reachability
ip route 4.2.2.2 255.255.255.255 Dialer0 (you have 1.1.1.1)
ip route 0.0.0.0 0.0.0.0 Dialer0 track 123
ip route 0.0.0.0 0.0.0.0 Dialer1 50
You would need to adjust/tweak NAT if these are going out to Internet.
Regards.
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