11-27-2003 12:02 PM - edited 03-02-2019 12:00 PM
Hello all,
I am having problems with a cisco3640 which has PRI ISDN30 installed. My problem is this:
After a reboot of the router I can dial in any laptop I try, however once a laptop has been dialled in and hung up it will not dial in again. THe laptop dials but the cisco will not answer or even start any dialogue with the laptop. The only way I can make a connection is by rebooting the router or by dialling in with a laptop which has not been used since the last reboot.
The config I use (see below) is the same as for 4 other sites with the same kit and same service. It works well though at these sites.
I have tried completely reinstalling the config as well as removing and reinstalling the the PRI and digital modem cards. Nothing seems to work and it is becomin v v annoying. As i say the config is below and i would really appreciate any help:
ip subnet-zero
no ip domain-lookup
!
isdn switch-type primary-net5
isdn voice-call-failure 0
!
!
controller E1 1/0
pri-group timeslots 1-31
!
!
interface Loopback0
ip address x.x.x.x 255.255.255.192
!
interface FastEthernet0/0
ip address x.x.x.x 255.255.255.192
duplex auto
speed auto
no cdp enable
!
interface Serial0/0
no ip address
shutdown
clockrate 2000000
no cdp enable
!
interface Serial0/1
no ip address
shutdown
clockrate 2000000
no cdp enable
!
interface Serial1/0:15
no ip address
encapsulation ppp
ip mroute-cache
dialer rotary-group 1
isdn switch-type primary-net5
isdn incoming-voice modem
no fair-queue
no cdp enable
!
interface Group-Async1
ip unnumbered Loopback0
encapsulation ppp
async mode interactive
peer default ip address pool test
no cdp enable
ppp authentication pap
group-range 65 88
!
interface Dialer1
ip unnumbered Loopback0
encapsulation ppp
dialer in-band
dialer-group 1
peer default ip address pool test
no fair-queue
no cdp enable
ppp authentication pap
!
router ospf 1
network x.x.x.x 0.0.0.255 area 0
network x.x.x.x 0.0.0.255 area 0
!
ip local pool test x.x.x.x y.y.y.y
ip classless
ip route 0.0.0.0 0.0.0.0 x.x.x.x
ip route 0.0.0.0 0.0.0.0 x.x.x.x
no ip http server
!
dialer-list 1 protocol ip permit
line con 0
transport input none
line 65 88
autoselect during-login
autoselect ppp
modem Dialin
modem autoconfigure discovery
transport input all
stopbits 1
flowcontrol hardware
line aux 0
password xxxxxxxxxxxxxx
line vty 0 4
password xxxxxxxxxxxxxx
!
end
many thanks to you all...
Richard
11-27-2003 01:03 PM
Hello Richard,
this sounds like a probelm with your laptop modem rather than with the router. Can you try another modem brand ? Can you dial in on the other routers with that same laptop ?
Check this document for troubleshooting modems (you need a CCO login for that):
http://www.cisco.com/en/US/customer/tech/tk801/tk36/technologies_tech_note09186a0080094eb9.shtml
Regards,
Georg
11-27-2003 03:42 PM
georg,
cheers for the reply, the laptop is fine as i can dial into similar 3640s with no problems.i have also tried different laptops and get the same result each time. the problem has to lie with either the cisco or the pri isdn30 service. which one i do not know but i would appreciate any thoughts,
regards,
richard
11-28-2003 06:14 AM
Richard,
Are you sure the 3640 does not answer? Have you tried "debug isdn q931" to see what happens when the call comes in?
Or could it be that the call fails at a later stage, eg. during ppp negotiation (try "debug ppp negotiation")?
Also, since your modems appear to be internal, I would suggest "modem autoconfigure type mica" instead of autoconfigure, but I would be surprises if that solves your problem.
regards
Herbert
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