03-18-2007 04:34 PM - edited 03-03-2019 04:12 PM
I have a problem decribed here:
ROUTER CISCO 1801:
config:
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
isdn tei-negotiation first-call
isdn point-to-point-setup
isdn spid1 xxxxxxxxxx
interface Dialer1
ip address negotiated
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer remote-name xxxxxxx@tpnet.pl
dialer idle-timeout 180
dialer string 0202130
dialer load-threshold 128 outbound
dialer-group 1
no cdp enable
ppp authentication chap callin
ppp chap hostname xxxxxxx@tpnet.pl
ppp chap password 7 xxxxxxxxxxxx
ppp multilink
ppp multilink links maximum 2
ppp multilink links minimum 2
debug output:
*Mar 13 16:24:22.427: BR0 DDR: rotor dialout [best] least recent failure is also
most recent failure
*Mar 13 16:24:22.427: BR0 DDR: rotor dialout [best] trying untried dialout
*Mar 13 16:24:22.427: BR0 DDR: rotor dialout [best] also has most recent failure
*Mar 13 16:24:22.427: BR0 DDR: rotor dialout [best]
*Mar 13 16:24:22.427: BR0 DDR: Dialing cause ip (s=192.168.1.17, d=212.77.100.10
1)
*Mar 13 16:24:22.427: BR0 DDR: Attempting to dial 0202130
*Mar 13 16:24:28.427: BRI0: wait for isdn carrier timeout, call id=0x8003
*Mar 13 16:24:31.371: BR0 DDR: rotor dialout [best] least recent failure is also
most recent failure
Router#show isdn stat
Global ISDN Switchtype = basic-net3
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-net3
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
Layer 2 NOT Activated
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Total Allocated ISDN CCBs = 0
*Mar 13 16:32:13.615: Di1 DDR: ip (s=192.168.1.17, d=212.77.100.101), 48 bytes,
outgoing interesting (ip PERMIT)
*Mar 13 16:32:13.615: BR0 DDR: rotor dialout [best] least recent failure is also
most recent failure
*Mar 13 16:32:13.615: BR0 DDR: rotor dialout [best] trying untried dialout
*Mar 13 16:32:13.615: BR0 DDR: rotor dialout [best] also has most recent failure
*Mar 13 16:32:13.615: BR0 DDR: rotor dialout [best]
*Mar 13 16:32:13.615: BR0 DDR: Dialing cause ip (s=192.168.1.17, d=212.77.100.10
1)
*Mar 13 16:32:13.615: BR0 DDR: Attempting to dial 0202130
*Mar 13 16:32:16.539: Di1 DDR: ip (s=192.168.1.17, d=212.77.100.101), 48 bytes,
outgoing interesting (ip PERMIT)
*Mar 13 16:32:19.619: BRI0: wait for isdn carrier timeout, call id=0x8003
*Mar 13 16:32:22.575: Di1 DDR: ip (s=192.168.1.17, d=212.77.100.101), 48 bytes,
outgoing interesting (ip PERMIT)
Router#debug isdn q931
debug isdn q931 is ON.
Router#
*Mar 13 16:35:53.535: ISDN BR0 **ERROR**: host_disconnect_ack: Unfound B-channel
on Disconnect_Ack call id 0x8009
*Mar 13 16:36:02.515: ISDN BR0 **ERROR**: host_disconnect_ack: Unfound B-channel
on Disconnect_Ack call id 0x800A
My question is how to make a router to redial after layer 1 issue (like disconnecting isdn cable), i have a proble when network provider disconects, and router doesn't connect again. Please refer that i have only 3 semster CCNA course knowledge. Please help....
Best regards,
Slawomir Piekarski
03-18-2007 05:16 PM
Hi,
the router should be able to redial always even if network disconnects BRI L1.
You can try:
isdn tei-negotiation preserve
no isdn spid xxxxx <--- spids are never used outside US
But if the router still fails placing calls after afailure, is a bug and you should upgrade IOS.
03-19-2007 08:17 AM
I don't think that is a IOS version problem but it can be. Ios version in that cisco 1801 router is:
Version 12.3(8r)YH8, RELEASE SOFTWARE (fc2)
and it is not an old release i thik?..?
Any ideas what could be wrong with this config, i look up the internet for solutions but nothing work.
Problem is when i disconnect the isdn interface removing the wire from port, and when i plug it again nothing happens. Only output shown up here. My Telco is Telekomunikacja Polska - maybe that is a problem :)
03-19-2007 08:28 AM
Hi,
we cannot blame the provider is this case. Nothing appears to be wrong in your config, except the two things I've noted previously.
If you pull the cable and reconnect, the router must be able to redial successfully.
The IOS can be a problem because there are bugs and you may be running into one.
03-19-2007 09:29 AM
Full config:
Router#show runn
Building configuration...
Current configuration : 2285 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
no service password-recovery
!
hostname Router
!
boot-start-marker
boot-end-marker
!
enable secret 5 xxxxxxxxxxxxxxxx.
!
no aaa new-model
!
resource policy
!
!
!
ip cef
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.1.1
!
ip dhcp pool pula1
network 192.168.1.0 255.255.255.0
dns-server 194.204.159.1 194.204.152.34
default-router 192.168.1.1
!
!
ip name-server 194.204.159.1
ip name-server 194.204.152.34
!
isdn switch-type basic-net3
!
!
!
!
!
!
!
!
interface FastEthernet0
no ip address
shutdown
duplex auto
speed auto
!
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
isdn tei-negotiation preserve
isdn point-to-point-setup
isdn fast-rollover-delay 5
no fair-queue
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface FastEthernet4
!
interface FastEthernet5
!
interface FastEthernet6
!
interface FastEthernet7
!
interface FastEthernet8
!
interface ATM0
no ip address
shutdown
no atm ilmi-keepalive
dsl operating-mode auto
!
interface Vlan1
ip address 192.168.1.1 255.255.255.0
ip helper-address 192.168.1.1
ip nat inside
ip virtual-reassembly
!
interface Dialer1
ip address negotiated
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer remote-name xxxxxxxx@tpnet.pl
dialer string xxxxxxxxx
dialer load-threshold 5 outbound
dialer-group 1
no cdp enable
ppp authentication chap callin
ppp chap hostname xxxxxx@tpnet.pl
ppp chap password 7 xxxxxxxxx
ppp multilink
!
ip route 0.0.0.0 0.0.0.0 Dialer1
!
!
no ip http server
no ip http secure-server
ip nat inside source list 100 interface Dialer1 overload
!
access-list 100 permit ip 192.168.1.0 0.0.0.255 any
access-list 100 deny ip any any
dialer watch-list 1 delay route-check initial 10
dialer watch-list 1 delay connect 10
dialer watch-list 1 delay disconnect 10
dialer-list 1 protocol ip permit
!
!
!
!
!
!
control-plane
!
!
line con 0
password 7 xxxxxxxxxxxxxx
line aux 0
line vty 0 4
password 7 xxxxxxxxxxxxxxxxx
login
line vty 5 193
password 7 xxxxxxxxxxxx
login
!
end
Now i've noticed that router is sometimes dialing after i plug out the wire and plug in again. load treshold is working correctly but no idea why i cannot ping wan Ip's from the router and from the host also....
Maybe i will try to upgrade IOS and see what will happen...
Best regards,
Slawomir Piekarski
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