04-28-2003 12:49 AM - edited 03-02-2019 06:57 AM
Hello,
i have a problem with a cisco 801 that cannot connect to internet. The
configuration is the following:
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname central1
!
no logging console
enable secret --------
enable password -------
!
username remote password 0 remote
ip subnet-zero
!
no ip domain-lookup
isdn switch-type basic-net3
!
!
!
interface Ethernet0
ip address 192.100.102.254 255.255.255.0
ip nat inside
no cdp enable
!
interface BRI0
timeout absolute 2
no ip address
encapsulation ppp
dialer pool-member 1
dialer pool-member 2
isdn switch-type basic-net3
no cdp enable
ppp authentication chap pap callin
!
interface Dialer1
description LIGACAO A INTERNET
ip address negotiated
ip nat outside
encapsulation ppp
dialer idle-timeout 240
timeout absolute 2
dialer pool 1
dialer remote-name Telepac
dialer idle-timeout 240
dialer string 671715000
no cdp enable
ppp authentication pap callin
ppp pap sent-username ------ password -----
!
interface Dialer2
description LIGACAO AO ESCRITORIO REMOTO
ip address 192.168.18.2 255.255.255.252
ip nat inside
dialer idle-timeout 240
timeout absolute 2
encapsulation ppp
dialer pool 2
dialer remote-name remote
dialer string ------
no cdp enable
ppp authentication chap callin
!
router rip
network 192.100.102.0
network 192.168.18.0
!
ip nat translation timeout 240
ip nat translation tcp-timeout 240
ip nat translation udp-timeout 240
ip nat inside source list 101 interface Dialer1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
ip route 192.100.100.0 255.255.255.0 Dialer2
no ip http server
!
!
no cdp run
!
line con 0
exec-timeout 3 0
stopbits 1
line vty 0 4
exec-timeout 3 0
password rcmadetel
login
!
no rcapi server
!
!
end
This configuration was working and the connection configured in dialer2 is
working.
The username and password in the ISP are correct, and the connection is
establihed.
The debug log indicates me that the problem is during the PPP negotiation.
The log is the following:
*Mar 1 00:07:11.999: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
*Mar 1 00:07:12.095: %DIALER-6-BIND: Interface BR0:1 bound to profile BR0
*Mar 1 00:07:12.155: BR0:1 PPP: Treating connection as a callout
*Mar 1 00:07:12.167: BR0:1 PPP: Phase is ESTABLISHING, Active Open [0 sess,
0 load]
*Mar 1 00:07:12.183: BR0:1 PPP: No remote authentication for call-out
*Mar 1 00:07:12.219: BR0:1 LCP: O CONFREQ [Closed] id 11 len 10
*Mar 1 00:07:12.223: BR0:1 LCP: MagicNumber 0xB0C923D0 (0x0506B0C923D0)
*Mar 1 00:07:12.251: ISDN BR0: Event: Connected to 671715000 on B1 at 64
Kb/s
*Mar 1 00:07:12.255: ISDN Error: Illegal Interface BR0:1
*Mar 1 00:07:12.255: ISDN Error: Illegal Interface BR0:1
*Mar 1 00:07:12.259: ISDN BR0: TX -> CONNECT_ACK pd = 8 callref = 0x03
*Mar 1 00:07:13.255: S7_T200_EXPIRY VA = 1, VS = 2
I don't understand the meaning of ISDN Error: Illegal Interface BR0:1.
I search in Cisco forums but i didn't found anything.
Can you help me? Thank you.
Best regards
Nuno Moniz
Departamento de Hardware
Email: nuno.moniz@ricmade.pt
05-02-2003 06:53 AM
Since you are saying that this config was working, just wondering if the problem is related to one of the B-channels. Since it shows that it uses 64Kbps as speed, try with 56 Kbps or confirm with the service provider if anything has changed. You can also try to see if you get any hint from 'debug isdn q931'. There are few bugs in IOS related to this message. If you have access to Bug toolkit, check out whether there is any bug related to this in the image that you are using. You config does not show the 'dialer-list and 'dialer-group' commands being used. I hope you have them, but not pasted it here.
05-02-2003 08:32 AM
First you need to add "dialer-group 1" under both the dialer interface and also add "dialer-list 1 protocol ip permit" in the global config.
After that we need to see the debug for following only to see how ppp negotiation have went through and what is the issue.
debug dialer
debug ppp nego
debug ppp auth
debug isdn q931
So pl. post the debug for a callout for review.
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