From: alsontra@hotmail.com
Date: Sun Mar 14 2004 - 15:26:19 GMT-3
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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