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From: shinobi2 on 11 Apr 2008 03:17
I'm hoping the experts here can help me with a problem that's been
plaguing me for a couple of days.

We have a Cisco 2821 router at a remote site, a Cisco 3745 at the head
office and a backup Cisco 3745 at a DR site. The 2821 normally talks
to the 3745 over MPLS. If the MPLS fails the dialer-watch routine
kicks off the ISDN call to the 3745 at the head office.

What we want to do is to have the 2821 call the 2nd 3745 at the DR
site if it cannot establish an ISDN connection to the primary site.
Currently the 2821 just keeps calling the primary site.

Any help would be much appreciated! I've included the relevant
portions of the config from the 2821 router below:

Cisco 2821 Configuration:
Hostname Cisco2821
!
username Cisco3745Backup password fist2punchu
username Cisco3745Primary password fist2punchu
!
interface GigabitEthernet0/0
ip address 10.106.240.14 255.255.255.252
no ip redirects
no ip proxy-arp
speed 100
full-duplex
no cdp enable
!
interface Serial0/0/0
description MPLS Primary Link
ip address 10.106.240.2 255.255.255.252
no ip redirects
no ip proxy-arp
service-module t1 timeslots 1-24
no cdp enable
!
interface BRI1/0/0
no ip address
encapsulation ppp
no ip mroute-cache
dialer pool-member 1 priority 1
dialer pool-member 2 priority 2
isdn switch-type basic-ni
isdn spid1 <SPID#1>
isdn spid2 <SPID#2>
ppp authentication chap
ppp multilink
!
interface BRI1/0/1
no ip address
encapsulation ppp
no ip mroute-cache
dialer pool-member 1 priority 1
dialer pool-member 2 priority 2
isdn switch-type basic-ni
isdn spid1 <SPID#1>
isdn spid2 <SPID#2>
ppp authentication chap
ppp multilink
!
interface Dialer1
ip address 10.106.240.10 255.255.255.252
encapsulation ppp
no ip route-cache
ip ospf network point-to-point
no ip mroute-cache
dialer pool 1
dialer remote-name Cisco3745Primary
dialer idle-timeout 60
dialer string <DialStringToPrimary>
dialer load-threshold 2 outbound
dialer max-call 4
dialer watch-group 1
dialer-group 1
no cdp enable
ppp authentication chap
ppp multilink
multilink max-links 4
multilink load-threshold 1 either
!
interface Dialer2
ip address 10.106.240.6 255.255.255.252
encapsulation ppp
no ip route-cache
ip ospf network point-to-point
no ip mroute-cache
dialer pool 2
dialer remote-name Cisco3745Backup
dialer idle-timeout 60
dialer string <DialStringToBackup>
dialer load-threshold 2 outbound
dialer max-call 4
dialer-group 2
no cdp enable
ppp authentication chap
ppp multilink
multilink max-links 4
multilink load-threshold 1 either
!
router bgp 65555
no synchronization
bgp log-neighbor-changes
redistribute connected
redistribute ospf 100 route-map igp-to-bgp
neighbor 10.106.240.1 remote-as 65500
no auto-summary
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.106.240.9 112
ip route 0.0.0.0 0.0.0.0 10.106.240.5 200
ip tacacs source-interface Loopback0
no ip http server
ip bgp-community new-format
!
access-list 101 deny ospf any any
access-list 101 permit ip any any
dialer watch-list 1 ip 10.106.240.1 255.255.255.252
dialer-list 1 protocol ip list 101
dialer-list 2 protocol ip list 101
From: Merv on 12 Apr 2008 18:41

> We have a Cisco 2821 router at a remote site, a Cisco 3745 at the head
> office and a backup Cisco 3745 at a DR site. The 2821 normally talks
> to the 3745 over MPLS. If the MPLS fails the dialer-watch routine
> kicks off the ISDN call to the 3745 at the head office.


Are the HQ 3745 and DRP 3745 routers connected via a network other
than the MPLS network ?


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