Cisco 2610 BRI

[blwebber]

Hi,

I have a CISCO 2610 using ISDN BRI. I am in the UK and I do not need to specify SPID's.
When my router goes to dial, It trys to get a layer 2 TEI assignment off the switch, but the switch does not respond, it has been tested on another
line but it did the same, I have other routers working on the line so its not that which is the problem. It only started doing this once I altered the dialer string,
(this is also valid and known to be working) I've just about run out of options since cisco is not interested at all. I know this router has done this before, apparently
all they needed to do was put a "fresh copy" of the config on. I also had to flash the router because the image decided to go bad. I'm running IP PLUS 12.0 (23)


I would be thouroughly greatful to get this problem resolved, it's very frustrating to have such a valuable and useful router sat idle.

 

[ccie9545]

if you could post the configuration that is currently on the router..... Erik Rudnick, CCIE No. 9545
mailto:erik@kuriosity.com

 

[blwebber]

Sure:

!
version 12.0
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname blwebber@tiscali.co.uk
!
enable password 7 131714151C1503212E
!
memory-size iomem 40
ip subnet-zero
no ip domain-lookup
isdn switch-type basic-net3
!
!
!
interface Ethernet0/0
description connected to lan
ip address 192.168.1.9 255.255.255.0
no ip directed-broadcast
ip nat inside
!
interface BRI1/0
description connected to tiscali
no ip address
no ip directed-broadcast
ip nat outside
encapsulation ppp
dialer rotary-group 1
isdn switch-type basic-net3
no cdp enable
!
interface BRI1/1
description connected to tiscali
no ip address
no ip directed-broadcast
ip nat outside
encapsulation ppp
dialer rotary-group 1
isdn switch-type basic-net3
no cdp enable
!
interface BRI1/2
description connected to tiscali
no ip address
no ip directed-broadcast
ip nat outside
encapsulation ppp
dialer rotary-group 1
isdn switch-type basic-net3
no cdp enable
!
interface BRI1/3
description connected to tiscali
no ip address
no ip directed-broadcast
ip nat outside
encapsulation ppp
dialer rotary-group 1
isdn switch-type basic-net3
no cdp enable
!
interface Dialer1
description connected to tiscali
ip address negotiated
no ip directed-broadcast
ip nat outside
encapsulation ppp
no ip split-horizon
dialer in-band
dialer string 08089933031
dialer hold-queue 10
dialer load-threshold 10 outbound
dialer-group 1
no cdp enable
ppp authentication chap pap callin
ppp chap hostname blwebber@tiscali.co.uk
ppp chap password 7 01030A054F0E081A2C
ppp pap sent-username blwebber@tiscali.co.uk password 7 12090916060E021127
ppp multilink
!
router rip
version 2
passive-interface Dialer1
network 192.168.1.0
no auto-summary
!
ip nat inside source list 1 interface Dialer1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
!
access-list 1 permit 192.168.1.0 0.0.0.255
dialer-list 1 protocol ip permit
snmp-server community rcgwygke RW
!
line con 0
exec-timeout 0 0
password 7 08334F491E00021C17
login
transport input none
line aux 0
line vty 0 4
password 7 095E4D0E0E1C10190E
login
!
end

 

[blwebber]

I can't see anything wrong with the config but then again i havnt been doing this very long.

 

[thethmon]

You might try adding this command to the BRI interface. I have had to use this before.
isdn tei-negotiation first-call Todd Hethmon
thethmon@hethmon.com

 

[blwebber]

Nope....no difference, I already tried this but i thought i would try it again. Thanks for trying though

 

[blwebber]

I am starting to think this is a hardware fault, how would I go about confirming this?

 

[mrmonday]

Quote:
"it has been tested on another line but it did the same, I have other routers working on the line so its not that which is the problem.
It only started doing this once I altered the dialer string,
(this is also valid and known to be working) I've just about run out of options since cisco is not interested at all.
I know this router has done this before, apparently
all they needed to do was put a "fresh copy" of the config on. I also had to flash the router because the image decided to go bad."

Judging from your original post I think you already have. The unit has already required a "fresh" config once before and it is likely that additional editing will cause further problems.

 

[wybnormal]

Two things come to mind. ISDN on the Cisco can be shaky at times. Before you call it bad, I personally would reload the IOS and/or upgrade the IOS to the newest stable release. I have had the reload *fix* routers before that were tempermental. Just cut and paste the config from a known good router and give it a whirl.


What does show isdn status tell us?

http://www.cisco.com/warp/public/129/bri_sh_isdn_stat.html

Also, what happens when you run debug q.931 on it?

Check this link which details how a handshake is set up and what to expect.

http://www.cisco.com/warp/public/471/isdn_q931_ts.html

MikeS
Find me at

http://www.packetattack.com

"Take advantage of the enemy's unreadiness, make your way by unexpected routes, and attack unguarded spots."
Sun Tzu