Hello,
i have implentented a similar config not too far ago. This config uses 2 Dialer (i this case a DSL and ISDN interface). If for any reason one specific IP (for example your main ISP Gate) is reachable anymore all the traffic will be routed through the 2nd Dialer.
I sould be very easy for you to make the needed changes.
Regards
Matthias Köhler
ip dhcp excluded-address 192.168.0.1 192.168.0.199
!
ip dhcp pool prod1
import all
network 192.168.0.0 255.255.255.0
dns-server 145.x.x.x.195.20.13
default-router 192.168.0.1
!
!
ip tcp synwait-time 10
ip domain name yourdom.de
ip name-server 145.x.x.81
ip name-server 132.x.x.13
no ip bootp server
ip cef
ip ips sdf location flash://attack-drop.sdf
ip ips notify SDEE
ip ips po max-events 100
ip ssh time-out 60
ip ssh authentication-retries 2
no ftp-server write-enable
isdn switch-type basic-net3
!
!
!
!
track 1 rtr 1 reachability
!
!
!
!
interface Ethernet0
ip address 192.168.0.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat inside
ip virtual-reassembly
ip route-cache flow
ip tcp adjust-mss 1452
no cdp enable
!
interface BRI0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
encapsulation ppp
dialer pool-member 2
isdn switch-type basic-net3
no cdp enable
!
interface ATM0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip route-cache flow
no atm ilmi-keepalive
dsl operating-mode auto
!
interface ATM0.1 point-to-point
pvc 1/32
pppoe-client dial-pool-number 1
!
!
interface FastEthernet1
no ip address
duplex auto
speed auto
!
interface FastEthernet2
no ip address
duplex auto
speed auto
!
interface FastEthernet3
no ip address
duplex auto
speed auto
!
interface FastEthernet4
no ip address
duplex auto
speed auto
!
interface Dialer0
ip address negotiated
no ip redirects
no ip unreachables
no ip proxy-arp
ip mtu 1452
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer persistent
dialer-group 1
ppp authentication chap pap callin
ppp chap hostname xxxxxxxxxxxxxxxxx
ppp chap password 7 xxxxxxxxxxxxx
ppp pap sent-username xxxxxxxx password 7 xxxxxxxxxxxxxxxxx
!
interface Dialer1
ip address negotiated
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer pool 2
dialer string 0192076
dialer load-threshold 1 either
dialer-group 2
no cdp enable
ppp authentication chap pap callin
ppp chap hostname test
ppp chap password 7 xxxxxxxxxxxxxx
ppp pap sent-username test password 7 xxxxxxxx
ppp multilink
!
ip local policy route-map ROUTEMAP_1
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0 track 1
ip route 0.0.0.0 0.0.0.0 Dialer1 2
ip route 62.x.x.x.255.255.255 Dialer0
!
ip http server
ip http authentication local
ip http secure-server
ip nat translation timeout 7200
ip nat inside source static udp 192.168.0.10 9077 interface Dialer0 9077
ip nat inside source route-map main interface Dialer0 overload
ip nat inside source route-map secondary interface Dialer1 overload
!
!
logging trap debugging
access-list 10 permit 192.168.0.0 0.0.0.255
access-list 102 permit icmp any host 62.x.x.62 echo
access-list 110 permit ip 192.168.0.0 0.0.0.255 any
access-list 111 permit ip 192.168.0.0 0.0.0.255 any
access-list 112 permit ip 192.168.0.0 0.0.0.255 any
dialer-list 1 protocol ip permit
dialer-list 2 protocol ip permit
route-map main permit 10
match ip address 111
match interface Dialer0
!
route-map ROUTEMAP_1 permit 1
match ip address 102
set interface Dialer0 Null0
!
route-map secondary permit 10
match ip address 112
match interface Dialer1
!
!
control-plane
!
rtr 1
type echo protocol ipIcmpEcho 62.x.x.62
timeout 1000
threshold 2
frequency 3
rtr schedule 1 life forever start-time now
