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What is this error?

RubinoM
Level 1
Level 1

*Mar 5 18:18:28.146: ISDN BR0 SERROR: L2_Go: at bailout DLCB is NULL

L2: sapi 0 tei 94 ces 255 ev 0x1

*Mar 5 18:18:58.978: ISDN BR0 SERROR: L2_Go: at bailout DLCB is NULL

L2: sapi 0 tei 94 ces 255 ev 0x43

4 Replies 4

Hello,

which country are you in, and which ISDN switch type do you have configured ?

Can you post your configuration, as well as the output of 'debug isdn q931' ?

Regards,

GP

version 12.0

service timestamps debug uptime

service timestamps log uptime

service password-encryption

!

hostname xxxxxxxxx

!

enable secret xxxxxxxxx

!

ip subnet-zero

no ip domain-lookup

!

isdn switch-type basic-net3

!

!

!

interface BRI0

ip address negotiated

no ip directed-broadcast

ip nat outside

encapsulation ppp

dialer rotary-group 0

dialer-group 1

isdn switch-type basic-net3

no cdp enable

!

interface FastEthernet0

ip address 172.16.11.1 255.255.255.0

no ip directed-broadcast

ip nat inside

no cdp enable

!

interface Dialer0

ip address negotiated

no ip directed-broadcast

ip nat outside

encapsulation ppp

dialer in-band

dialer idle-timeout 30

dialer string 7027020000

dialer-group 1

no cdp enable

ppp pap sent-username xxxxxxxxx password xxxxxxxxx

!

ip nat inside source list 10 interface Dialer0 overload

ip classless

ip route 0.0.0.0 0.0.0.0 Dialer0

no ip http server

!

access-list 10 permit 172.16.11.0 0.0.0.255

dialer-list 1 protocol ip permit

no cdp run

!

line con 0

password xxxxxxxxxxx

login

transport input none

line aux 0

password xxxxxxxxxx

login

line vty 0 4

password xxxxxxxxxx

logging synchronous

login

!

no scheduler allocate

end

*Mar 5 20:58:57.337: ISDN BR0 Q931: RX <- SETUP pd = 8 callref = 0x05

Sending Complete

Bearer Capability i = 0x9090A3

Standard = CCITT

Transer Capability = 3.1kHz Audio

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0x80

Progress Ind i = 0x8083 - Origination address is non-ISDN

Calling Party Number i = 0x2181, '438454912'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, '458801043'

Plan:ISDN, Type:National

Hello,

from your output it looks like somebody with telephone number 43845912 is trying to dial into your ISDN with an analog (non-ISDN) connection. In order to successfully terminate such calls, you would need a digital modem.

Can you try and find out who is calling from that number ?

Regards,

GP

franckrcs
Level 1
Level 1

Hi,

It's your law code witch is wrong or not inserted on your voice port. Depends in the country you are US or Europe or stuff..

On your voice port try :

voice-port 2/0

compand-type a-law (for europe)

cptone XX (where XX is your country code).

Hope that help you

Regards

franck

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