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RE: ISDN Rookie Question? posted 03/14/2004
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It may not be related to your problem but I cannot see a dialer-group on
both Dialer 0 interfaces,

--Richard

-----Mensaje original-----
De: alsontra@xxxxxxxxxxx [mailto:alsontra@xxxxxxxxxxx]
Enviado el: domingo, 14 de marzo de 2004 19:26
Para: ccielab@xxxxxxxxxxxxxx
Asunto: ISDN Rookie Question?


Group,
          What are the rules for using multiple ISDN dialer interfaces with
chap. I'm basically experimenting to find out what works and what doesn't.
The
config below always results in the ISDN layer 2 error message "user-busy".
The first dialer interface is meant to backup another interface and will
later
be reference by the backup interface and dialer persistent command. Right
now,
I simply want dialer0 to be able connect to the remote routers dialer0
interface.

topology

R4----R5


R5
username ROUTER4 password 0 CISCO
username R4TEST password 0 CISCO
username R4 password 0 CISCO

interface BRI0/0
 no ip address
 encapsulation ppp
 dialer pool-member 1
 isdn switch-type basic-ni
 isdn spid1 5272075
 ppp multilink
!
interface Dialer0
 ip address 148.7.45.5 255.255.255.0
 encapsulation ppp
 dialer pool 1
 dialer remote-name ROUTER4
 dialer idle-timeout 0
 dialer string 5272074
 no cdp enable
 ppp authentication chap
 ppp chap hostname ROUTER5
 ppp multilink
!
interface Dialer1
 ip address 10.45.45.5 255.255.255.0
 encapsulation ppp
 dialer pool 1
 dialer remote-name R4TEST
 dialer string 5272074
 dialer-group 1
 no cdp enable
 ppp authentication chap
 ppp chap hostname R5TEST
 ppp chap password 0 CISCO
!

R4
username ROUTER5 password 0 CISCO
username R5TEST password 0 CISCO
username R5 password 0 CISCO
!
interface BRI0/0
 no ip address
 encapsulation ppp
 dialer pool-member 1
 isdn switch-type basic-ni
 isdn spid1 5272074
 ppp multilink
!
interface Dialer0
 ip address 148.7.45.4 255.255.255.0
 encapsulation ppp
 load-interval 30
 dialer pool 1
 dialer remote-name ROUTER5
 dialer string 5272075
 no cdp enable
 ppp chap hostname ROUTER4
 ppp multilink
 multilink load-threshold 191 either
!
interface Dialer1
 ip address 10.45.45.4 255.255.255.0
 encapsulation ppp
 dialer pool 1
 dialer remote-name R5TEST
 dialer string 5272075
 dialer-group 1
 no cdp enable
 ppp chap hostname R4TEST
 ppp chap password 0 CISCO
 ppp multilink


debug isdn q931
*Mar  1 01:01:45.033: ISDN BR0/0 Q931: TX -> SETUP pd = 8  callref = 0x1B
        Bearer Capability i = 0x8890
                Standard = CCITT
                Transer Capability = Unrestricted Digital
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0x83
        Keypad Facility i = '5272075'
*Mar  1 01:01:45.085: ISDN BR0/0 Q931: RX <- SETUP_ACK pd = 8  callref =
0x9B
        Channel ID i = 0x89
        Signal i = 0x00 - Dial tone on ...
*Mar  1 01:01:49.753: ISDN BR0/0 Q931: RX <- CALL_PROC pd = 8  callref =
0x9B
        Channel ID i = 0x89
*Mar  1 01:01:49.821: ISDN BR0/0 Q931: RX <- DISCONNECT pd = 8  callref =
0x9B
        Cause i = 0x8291 - User busy
*Mar  1 01:01:49.833: ISDN BR0/0 Q931: TX -> RELEASE pd = 8  callref = 0x1B
*Mar  1 01:01:49.881: ISDN BR0/0 Q931: RX <- RELEASE_COMP pd = 8  callref =
0x9B
*Mar  1 01:01:51.035: ISDN BR0/0 Q931: TX -> SETUP pd = 8  callref = 0x1C
        Bearer Capability i = 0x8890
                Standard = CCITT
                Transer Capability = Unrestricted Digital
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0x83
        Keypad Facility i = '5272075'
*Mar  1 01:01:51.091: ISDN BR0/0 Q931: RX <- SETUP_ACK pd = 8  callref =
0x9C
        Channel ID i = 0x89
        Signal i = 0x00 - Dial tone on ..
Success rate is 0 percent (0/5)
R4#
*Mar  1 01:01:55.735: ISDN BR0/0 Q931: RX <- CALL_PROC pd = 8  callref =
0x9C
        Channel ID i = 0x89
*Mar  1 01:01:55.807: ISDN BR0/0 Q931: RX <- DISCONNECT pd = 8  callref =
0x9C
        Cause i = 0x8291 - User busy
*Mar  1 01:01:55.819: ISDN BR0/0 Q931: TX -> RELEASE pd = 8  callref = 0x1C
*Mar  1 01:01:55.863: ISDN BR0/0 Q931: RX <- RELEASE_COMP pd = 8  callref =
0x9C

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