06-03-2005 04:32 AM
Hi,
we are trying to configure a Cisco 3745 with a 2port E1 PRI interface and 12 digital modems (NM-12DM) and 8 analog modems (NM-8AM) for remote access for telecommuters.
We didn't succeed so far.
Our config looks like:
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname RASrouter
!
boot-start-marker
boot-end-marker
!
enable secret 5 *********
!
username test password 7 **********
aaa new-model
!
!
aaa session-id common
no ip subnet-zero
ip cef
!
!
!
no ip domain lookup
ip name-server 10.10.1.1
no ftp-server write-enable
isdn switch-type primary-net5
!
!
!
controller E1 1/0
pri-group timeslots 1-31
!
controller E1 1/1
shutdown
!
!
interface FastEthernet0/0
ip address 10.10.0.5 255.255.0.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial1/0:15
ip address 10.100.0.1 255.255.0.0
encapsulation ppp
autodetect encapsulation ppp
isdn switch-type primary-net5
isdn incoming-voice modem
!
interface Group-Async0
no ip address
encapsulation ppp
async mode interactive
peer default ip address pool dialin_address_pool
group-range 65 76
!
ip local pool dialin_address_pool 10.100.4.1 10.100.4.254
ip classless
ip route 0.0.0.0 0.0.0.0 10.10.0.1
ip http server
!
radius-server host 10.30.1.1 auth-port 1645 acct-port 1646
radius-server key 7 *********
!
line con 0
password 7 **********
line 65 76
modem Dialin
autoselect ppp
line aux 0
line vty 0 4
exec-timeout 15 0
password 7 **********
!
end
We haven't started the configuration of RADIUS authentication so far, since our main problem is, that we can't connect via analog or isdn to the RAS-Router.
Any suggestions from you experts?
By the way, we are in Germany (is isdn switch-type primary-net5 correct)?
Regards, maeb3
Solved! Go to Solution.
06-03-2005 05:32 AM
Sorry, but it doesn't look fine to me. On mine I have Layer 1 Status is ACTIVE, and Layer 2 Status is MULTIPLE_FRAME_ESTABLISHED. It looks like a physical problem to me. I think you would get the same result if you unplugged the cable completely. But I think your config looks OK. You might try debug isdn q921 but I doubt that will tell you much if the problem is layer 1.
Kevin Dorrell
Luxembourg
06-03-2005 04:36 AM
The router just doesn't answer the call.
Any idea, what could be the problem?
06-03-2005 04:53 AM
Could you please post the results of show isdn status?
If that is all OK, please do a debug isdn events and debug dialer events and try the call again, and post the results. Don't forget the term mon if you are remote.
For even more detail, try with debug isdn q921 and debug isdn q931.
Kevin Dorrell
Luxembourg
06-03-2005 05:09 AM
The ISDN status is:
RASrouter#sho isdn status
Global ISDN Switchtype = primary-net5
ISDN Serial1/0:15 interface
dsl 0, interface ISDN Switchtype = primary-net5
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x00000000
Number of L2 Discards = 0, L2 Session ID = 1
Total Allocated ISDN CCBs = 0
RASrouter#
The telco provider says that the connection looks fine from his side.
06-03-2005 05:32 AM
Sorry, but it doesn't look fine to me. On mine I have Layer 1 Status is ACTIVE, and Layer 2 Status is MULTIPLE_FRAME_ESTABLISHED. It looks like a physical problem to me. I think you would get the same result if you unplugged the cable completely. But I think your config looks OK. You might try debug isdn q921 but I doubt that will tell you much if the problem is layer 1.
Kevin Dorrell
Luxembourg
06-03-2005 05:54 AM
Thank you for this information.
You also have the ISDN signalling on the serial interface on channel 16 (which is showed as channel 15 in my isdn status output above)?
Matthias Eberle
06-03-2005 06:16 AM
Yes, that is correct. I think it is standard under net5. At least, it is that way in every net5 installation I have seen: signalling D-channel on :15 and B-channels on :0 to :14 and :16 to :30. Remembering always that :0 is actually timeslot 1.
Over the water, they do things differently, and bundle 24 channels with :23 as the D-channel. But we do not have to worry about that here.
Kevin Dorrell
Luxembourg
Kevin Dorrell
06-03-2005 06:22 AM
Thank you.
I will continue next week.
Have a nice weekend.
Matthias Eberle
06-03-2005 02:07 PM
i 'm damn sure there is a problem with ur pri link either physically(unplugged/lose etc..) or may be at the telco end (can u make a test call from the pri).but it is a problem at the physical layer 1 only
06-08-2005 12:48 AM
We finally got it.
Two wires of our ("self-made") RJ45 Plug were interchanged.
Thank you again.
Matthias Eberle
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