Cisco and Adtran ISDN Communication Problems

[ad73]

Hello:

My compaany has two locations. We have had them connected via ISDN. It has been working for the past 4 years, but all of the sudden (last Friday) the connection went down in the middle of the night. We have been troubleshooting for days with absolutely no luck !!! Our Telco Company (Telus) says that the ISDN line tests fine on both sides.

Our Setup is as follows:

LOCATION #1
Cisco 4000 Router--> Adtran ISU128

-----(over the ISDN line)------>

LOCATION #2
Adtran ISU128---> Cisco 2501 Router.

We have always had a Multilink PPP (MPPP) Link across this network.

As near as I can tell, I think that the configuration of one or both of the routers has been compromised. The 2501 seems to be acting as the dailer in our case. I have double checked the modems on both sides, and their config. looks correct.

I was wondering if there is anyone out there that knows the correct setup and configuration for the two routers (4000 and 2501) so we can re-input the config and start from scratch.

Any and all suggestions would be welcome.

Thank you in advance.

ad73

 

[burtsbees]

Post what you have now....so the SPIDs haven't changed?

Burt

 

[ad73]

Thanks for the reply burtsbees.

No the SPID's haven't changed. I double and triple checked this.

Here are the configurations of the routers (via show config).

As near as I can tell the 2501 is the one initiating the call. Any thoughts?

HOME SITE ROUTER CONFIGURATION - CISCO 4000 SERIES ROUTER
!
version 10.2
!
hostname calgary
!
enable password bigtime
!
no ip domain-lookup
!
interface Ethernet0
description Calgary Subnet
ip address 192.1.1.254 255.255.255.0
ip broadcast-address 192.1.1.255
!
interface Serial0
description WAN-FR-600
ip address 192.1.254.1 255.255.255.0
ip broadcast-address 192.1.254.255
encapsulation frame-relay
bandwidth 56
frame-relay map ip 192.1.254.2 500 broadcast
!
interface Serial1
description 56k DDS fmw
ip address 192.1.5.1 255.255.255.0
ip broadcast-address 192.1.5.255
bandwidth 56
!
interface Serial2
description 56k DDS norouter
ip address 192.1.6.1 255.255.255.0
ip broadcast-address 192.1.6.255
encapsulation ppp
bandwidth 64
dialer in-band
dialer idle-timeout 300
dialer-group 6
!
interface Serial3
description home
ip address 192.1.8.1 255.255.255.0
ip broadcast-address 192.1.8.255
encapsulation ppp
bandwidth 64
dialer in-band
dialer idle-timeout 300
dialer map ip 192.1.8.2 name homerouter broadcast 4562173383
!
interface Serial4
no ip address
shutdown
!
interface Serial5
no ip address
shutdown
!
interface Async1
no ip address
!
router rip
network 192.1.0.0
!
dialer-list 6 protocol ip permit
dialer-list 8 protocol ip permit
!
line con 0
exec-timeout 5 0
login
escape-character 3
line aux 0
line vty 0 4
exec-timeout 5 0
password bigtime2
login
escape-character 3
!
end


REMOTE SITE ROUTER CONFIGURATION - CISCO 2501 SERIES ROUTER

!
version 11.0
service udp-small-servers
service tcp-small-servers
!
hostname home
!
enable password bigtime
!
!
interface Ethernet0
description homesweethome
ip address 192.1.9.254 255.255.255.0
!
interface Serial0
ip address 192.1.8.2 255.255.255.0
ip broadcast-address 192.1.8.255
encapsulation ppp
bandwidth 64
dialer in-band
dialer map ip 192.1.8.1 name calrouter broadcast 4562234939
dialer-group 8
no fair-queue
ppp multilink
pulse-time 1
!
interface Serial1
no ip address
shutdown
!
router rip
network 192.1.0.0
!
dialer-list 8 protocol ip permit
!
line con 0
line aux 0
transport input all
line vty 0 4
password bigtime2
login
!
end


ad73