05-15-2002 01:55 AM - edited 03-01-2019 09:44 PM
We have configured an ISDN BRI port on a 1600 series router to call another ISDN BRI port using dialer profile. The ISDN Link comes up and goes down many times per second. This can be seen in Debug. When we use Debug ISDN q931 we get the "Cause i=0x809f - normal, unspecified or Special intercept, call blocked group restriction". We have changed the ISDN line and tried on another ISDN line but the same problem exists. Appreciate help. Thanks.
05-15-2002 08:05 AM
Because of interesting traffic, the router may be keep dialing out. Need to take a look for debug
debug dialer
debug isdn q931
to see why its dialing..also put the config too.
05-20-2002 04:26 AM
Thanks for your response. I list below the config. Appreciate any help. Thanks.
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log datetime msec
service password-encryption
!
hostname repl98
!
enable password 7 XXXXXXXXXXXXXXXXXXX
!
username XXXXXX password 7 XXXXXXXXXXXX
ip subnet-zero
no ip domain-lookup
isdn switch-type basic-net3
!
interface Ethernet0
description connected to rep LAN
ip address 192.168.98.250 255.255.255.0
no ip directed-broadcast
!
interface Serial0
description connected to s5
backup delay 1 1
backup interface Dialer1
ip address 192.168.198.1 255.255.255.0
no ip directed-broadcast
encapsulation ppp
!
interface BRI0
description ISDN connection to h2
no ip address
no ip directed-broadcast
encapsulation ppp
dialer rotary-group 1
isdn switch-type basic-net3
no fair-queue
!
interface Dialer1
description ISDN connection to h2
ip address 192.168.202.3 255.255.255.0
no ip directed-broadcast
encapsulation ppp
no ip split-horizon
dialer in-band
dialer idle-timeout 300
dialer map ip 192.168.202.2 name XXXX broadcast XXXXXXXX
dialer hold-queue 10
dialer load-threshold 10 either
dialer-group 1
no fair-queue
ppp authentication chap
ppp multilink
!
router eigrp 100
network 192.168.98.0
network 192.168.202.0
no auto-summary
!
ip classless
!
dialer-list 1 protocol ip permit
snmp-server community public RO
!
line con 0
exec-timeout 0 0
password 7 XXXXXXXXXXXXX
login
transport input none
line vty 0 4
password 7 XXXXXXXXXXXXX
login
!
end
05-20-2002 08:51 AM
From the config, Eigrp is the strong cendidate which will bring up the line. May be (assuming without debug) because of connection was not successful it keeps trying to dialout again everytime it needs to send the hello packet over..
Now..need to have following debug to fid the problem
debug dialer
debug ppp negotiation
debug isdn q931
debug ppp authentication
05-21-2002 04:18 AM
Thanks for your help. I used all 4 debugs and got the following output:
2d21h: BRI0 DDR: rotor dialout [priority]
2d21h: BRI0 DDR: Dialing cause ip (s=192.168.202.3, d=224.0.0.10)
2d21h: BRI0 DDR: Attempting to dial XXXXXXXX
*Mar 3 21:02:51.960: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 64 changed to up
2d21h: ISDN BR0: TX -> SETUP pd = 8 callref = 0x24
2d21h: Bearer Capability i = 0x8890
2d21h: Channel ID i = 0x83
2d21h: Called Party Number i = 0x80, ' XXXXXXXX'
2d21h: ISDN BR0: RX <- CALL_PROC pd = 8 callref = 0xA4
2d21h: Channel ID i = 0x89
2d21h: ISDN BR0: RX <- CONNECT pd = 8 callref = 0xA4
*Mar 3 21:02:52.900: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
*Mar 3 21:02:52.924: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to XXXXXXXX
2d21h: BR0:1 PPP: Treating connection as a callout
2d21h: BR0:1 PPP: Phase is ESTABLISHING, Active Open
2d21h: BR0:1 LCP: O CONFREQ [Closed] id 81 len 28
2d21h: BR0:1 LCP: AuthProto CHAP (0x0305C22305)
2d21h: BR0:1 LCP: MagicNumber 0x3F8480E7 (0x05063F8480E7)
2d21h: BR0:1 LCP: MRRU 1524 (0x110405F4)
2d21h: BR0:1 LCP: EndpointDisc 1 Local (0x1309017265706C3938)
2d21h: ISDN BR0: TX -> CONNECT_ACK pd = 8 callref = 0x24
2d21h: ISDN BR0: RX <- DISCONNECT pd = 8 callref = 0xA4
2d21h: Cause i = 0x809F - Normal, unspecified or Special intercept, call blocked group restriction
*Mar 3 21:02:52.988: %LINK-3-UPDOWN: Interface BRI0:1, changed state to down
2d21h: DDR: Call disconnected, 1 packets unqueued and discarded
2d21h: BR0:1 LCP: State is Closed
2d21h: BR0:1 PPP: Phase is DOWN
2d21h: BRI0:1 DDR: disconnecting call
2d21h: ISDN BR0: TX -> RELEASE pd = 8 callref = 0x24
2d21h: ISDN BR0: RX <- STATUS pd = 8 callref = 0xA4
2d21h: Cause i = 0x829F - Normal, unspecified or Special intercept, call blocked group restriction
2d21h: Call State i = 0x0C
2d21h: ISDN BR0: RX <- RELEASE_COMP pd = 8 callref = 0xA4
*Mar 3 21:02:53.571: %LINK-3-UPDOWN: Interface Dialer1, changed state to up
2d21h: BRI0 DDR: rotor dialout [priority]
2d21h: BRI0 DDR: Dialing cause ip (s=192.168.202.3, d=224.0.0.10)
2d21h: BRI0 DDR: Attempting to dial XXXXXXXX
2d21h: ISDN BR0: TX -> SETUP pd = 8 callref = 0x25
2d21h: Bearer Capability i = 0x8890
2d21h: Channel ID i = 0x83
2d21h: Called Party Number i = 0x80, ' XXXXXXXX '
2d21h: ISDN BR0: RX <- CALL_PROC pd = 8 callref = 0xA5
2d21h: Channel ID i = 0x89
2d21h: ISDN BR0: RX <- CONNECT pd = 8 callref = 0xA5
*Mar 3 21:02:56.964: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
*Mar 3 21:02:56.987: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to XXXXXXX
2d21h: BR0:1 PPP: Treating connection as a callout
2d21h: BR0:1 PPP: Phase is ESTABLISHING, Active Open
2d21h: BR0:1 LCP: O CONFREQ [Closed] id 82 len 28
2d21h: BR0:1 LCP: AuthProto CHAP (0x0305C22305)
2d21h: BR0:1 LCP: MagicNumber 0x3F8490E8 (0x05063F8490E8)
2d21h: BR0:1 LCP: MRRU 1524 (0x110405F4)
2d21h: BR0:1 LCP: EndpointDisc 1 Local (0x1309017265706C3938)
2d21h: ISDN BR0: TX -> CONNECT_ACK pd = 8 callref = 0x25
2d21h: ISDN BR0: RX <- DISCONNECT pd = 8 callref = 0xA5
2d21h: Cause i = 0x809F - Normal, unspecified or Special intercept, call blocked group restriction
*Mar 3 21:02:57.047: %LINK-3-UPDOWN: Interface BRI0:1, changed state to down
2d21h: DDR: Call disconnected, 1 packets unqueued and discarded
2d21h: BR0:1 LCP: State is Closed
2d21h: BR0:1 PPP: Phase is DOWN
2d21h: BRI0:1 DDR: disconnecting call
2d21h: ISDN BR0: TX -> RELEASE pd = 8 callref = 0x25
2d21h: ISDN BR0: RX <- STATUS pd = 8 callref = 0xA5
2d21h: Cause i = 0x829F - Normal, unspecified or Special intercept, call blocked group restriction
2d21h: Call State i = 0x0C
2d21h: ISDN BR0: RX <- RELEASE_COMP pd = 8 callref = 0xA5
2d21h: BRI0 DDR: rotor dialout [priority]
2d21h: BRI0 DDR: Dialing cause ip (s=192.168.202.3, d=224.0.0.10)
2d21h: BRI0 DDR: Attempting to dial XXXXXXXX
2d21h: ISDN BR0: TX -> SETUP pd = 8 callref = 0x26
2d21h: Bearer Capability i = 0x8890
2d21h: Channel ID i = 0x83
2d21h: Called Party Number i = 0x80, 'XXXXXXXX'
2d21h: ISDN BR0: RX <- CALL_PROC pd = 8 callref = 0xA6
2d21h: Channel ID i = 0x89
2d21h: ISDN BR0: RX <- CONNECT pd = 8 callref = 0xA6
*Mar 3 21:03:01.864: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
*Mar 3 21:03:01.888: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to XXXXXXX
2d21h: BR0:1 PPP: Treating connection as a callout
2d21h: BR0:1 PPP: Phase is ESTABLISHING, Active Open
2d21h: BR0:1 LCP: O CONFREQ [Closed] id 83 len 28
2d21h: BR0:1 LCP: AuthProto CHAP (0x0305C22305)
2d21h: BR0:1 LCP: MagicNumber 0x3F84A435 (0x05063F84A435)
2d21h: BR0:1 LCP: MRRU 1524 (0x110405F4)
2d21h: BR0:1 LCP: EndpointDisc 1 Local (0x1309017265706C3938)
2d21h: ISDN BR0: TX -> CONNECT_ACK pd = 8 callref = 0x26
2d21h: ISDN BR0: RX <- DISCONNECT pd = 8 callref = 0xA6
2d21h: Cause i = 0x809F - Normal, unspecified or Special intercept, call blocked group restriction
*Mar 3 21:03:01.932: %LINK-3-UPDOWN: Interface BRI0:1, changed state to down
2d21h: DDR: Call disconnected, 1 packets unqueued and discarded
2d21h: BR0:1 LCP: State is Closed
2d21h: BR0:1 PPP: Phase is DOWN
2d21h: BRI0:1 DDR: disconnecting call
2d21h: ISDN BR0: TX -> RELEASE pd = 8 callref = 0x26
2d21h: ISDN BR0: RX <- STATUS pd = 8 callref = 0xA6
2d21h: Cause i = 0x829F - Normal, unspecified or Special intercept, call blocked group restriction
2d21h: Call State i = 0x0C
2d21h: ISDN BR0: RX <- RELEASE_COMP pd = 8 callref = 0xA6
2d21h: BRI0 DDR: rotor dialout [priority]
2d21h: BRI0 DDR: Dialing cause ip (s=192.168.202.3, d=224.0.0.10)
2d21h: BRI0 DDR: Attempting to dial XXXXXX
2d21h: ISDN BR0: TX -> SETUP pd = 8 callref = 0x27
2d21h: Bearer Capability i = 0x8890
2d21h: Channel ID i = 0x83
2d21h: Called Party Number i = 0x80, 'XXXXXXX'
2d21h: ISDN BR0: RX <- CALL_PROC pd = 8 callref = 0xA7
2d21h: Channel ID i = 0x89
2d21h: ISDN BR0: RX <- CONNECT pd = 8 callref = 0xA7
*Mar 3 21:03:06.443: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
*Mar 3 21:03:06.467: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to XXXXXXX
2d21h: BR0:1 PPP: Treating connection as a callout
The line restarts every few seconds. Appreciate your help.
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