RE: OSPF Demand Circuit

From: Albert Lu (albert_ccie@xxxxxxxxx)
Date: Fri Jan 11 2002 - 05:32:46 GMT-3


   
split-hor....?? =)

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
EA Louie
Sent: Friday, January 11, 2002 7:10 PM
To: ccielab@groupstudy.com
Subject: OSPF Demand Circuit

Okay... I think I've done everything right, I've gone through the archives,
and I might just be dealing with a 'feature' of 12.1, but I can't get ospf
demand circuit to stay quiet. here's the topology in a nutshell:

R2 ----- R5 ---- R4
     /
R3 -/

With R3 and R2 on the same subinterface as R5 in Area 0, and R5-R4 running
IGRP
Mutually redistributing OSPF and EIGRP on R2, and OSPF and IGRP on R5. R4
runs IGRP by itself.

R5 and R3 are both ISDN routers and I'm trying to get demand circuit working
correctly. I have it dialing just fine, but the doggone connection won't
stay
down unless I A) remove redistribution on R5, or B) shut down the dialer
interface.

Here are the configs of the 3 key routers - anyone have a suggestion as to
why
I can't get this thing quiet? I'm willing to put an access-list on R5 to
deny
ospf any any, but that just seems to defeat the purpose, don't you think?
Especially when show ip ospf int dial0 shows Hello suppressed:

R5#sh ip ospf int dial0
Dialer0 is up, line protocol is up (spoofing)
Internet Address 133.1.35.5/24, Area 0
Process ID 1, Router ID 133.1.5.5, Network Type POINT_TO_POINT, Cost: 20000
Configured as demand circuit.
Run as demand circuit.
DoNotAge LSA allowed.
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:06
Index 3/3, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 4
Last flood scan time is 0 msec, maximum is 16 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 133.1.3.3 (Hello suppressed)
Suppress hello for 1 neighbor(s)
Message digest authentication enabled
Youngest key id is 1
R5#

thanks
-e-

R5

R5#
10:33:37: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 5552000
user33
R5#wr t
Building configuration...
Current configuration : 4151 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R5
!
enable password cisco
!
username R3 password 0 cisco
username user33 password 0 cisco
username user55 password 0 cisco
!
!
!
!
ip subnet-zero
ip tcp synwait-time 5
no ip domain-lookup
!
ipx routing 5000.5000.5000
isdn switch-type basic-dms100
!
!
!
!
!
interface Loopback0
ip address 133.1.5.5 255.255.255.0
ip ospf network point-to-point
!
interface Serial0
no ip address
encapsulation frame-relay
no fair-queue
no frame-relay inverse-arp
!
interface Serial0.1 point-to-point
ip address 133.1.45.5 255.255.255.0
ipx network 45
frame-relay interface-dlci 524
!
interface Serial0.235 multipoint
ip address 133.1.235.5 255.255.255.0
ip ospf message-digest-key 1 md5 cisco
ip ospf hello-interval 50
ipx network 235
frame-relay map ipx 235.3000.300
10:34:04: %SEC-6-IPACCESSLOGRP: list 150 permitted ospf 133.1.35.5 ->
224.0.0.5,
8 packets0.3000 523 broadcast
frame-relay map ipx 235.2000.2000.2000 522 broadcast
frame-relay map ip 133.1.235.2 522 broadcast
frame-relay map ip 133.1.235.3 523 broadcast
!
interface Serial1
ip address 133.1.56.5 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-point
ipx network 56
frame-relay map ip 133.1.56.6 526 broadcast
frame-relay map ipx 56.6000.6000.6000 526 broadcast
no frame-relay inverse-arp
!
interface TokenRing0
description VLAN B
ip address 133.1.55.5 255.255.255.0
ipx network 55
ring-speed 16
!
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-dms100
isdn spid1 0555100001 5551000
isdn spid2 0555300001 5553000
ppp authentication chap
ppp multilink
!
interface Dialer0
ip address 133.1.35.5 255.255.255.0
encapsulation ppp
ip ospf message-digest-key 1 md5 dialer
ip ospf network point-to-point
ip ospf cost 20000
ip ospf demand-circuit
dialer pool 1
dialer remote-name user33
dialer string 5552000
dialer load-threshold 127 either
dialer watch-group 1
dialer-group 1
no peer neighbor-route
ppp authentication chap
ppp chap hostname user55
ppp multilink
!
router ospf 1
log-adjacency-changes
area 0 authentication message-digest
area 5 virtual-link 133.1.6.6 authentication message-digest
area 5 virtual-link 133.1.6.6 message-digest-key 1 md5 cisco
network 133.1.5.0 0.0.0.255 area 0
network 133.1.35.0 0.0.0.255 area 0
network 133.1.56.0 0.0.0.255 area 5
network 133.1.235.0 0.0.0.255 area 0
neighbor 133.1.235.3
neighbor 133.1.235.2
default-metric 20
!
router igrp 1
redistribute ospf 1 route-map ospf2igrp
passive-interface BRI0
passive-interface Dialer0
passive-interface Loopback0
passive-interface Serial0.235
passive-interface Serial1
passive-interface TokenRing0
network 133.1.0.0
default-metric 64 1 255 1 1500
!
ip classless
ip http server
!
access-list 140 permit ip host 150.100.2.0 host 255.255.255.0
access-list 140 permit ip host 133.1.44.0 host 255.255.255.0
access-list 140 permit ip host 133.1.4.0 host 255.255.255.0
access-list 141 permit ip host 133.1.1.0 host 255.255.255.0
access-list 141 permit ip host 133.1.2.0 host 255.255.255.0
access-list 141 permit ip host 133.1.3.0 host 255.255.255.0
access-list 141 permit ip host 133.1.5.0 host 255.255.255.0
access-list 141 permit ip host 133.1.6.0 host 255.255.255.0
access-list 141 permit ip host 133.1.12.0 host 255.255.255.0
access-list 141 permit ip host 133.1.22.0 host 255.255.255.0
access-list 141 permit ip host 133.1.23.0 host 255.255.255.0
access-list 141 permit ip host 133.1.56.0 host 255.255.255.0
access-list 141 permit ip host 133.1.66.0 host 255.255.255.0
access-list 141 permit ip host 151.100.0.0 host 255.255.192.0
access-list 141 permit ip host 150.100.1.0 host 255.255.255.0
access-list 142 permit ip host 133.1.35.0 host 255.255.255.0
access-list 150 permit ip any any log
dialer watch-list 1 ip 133.1.23.0 255.255.255.192
dialer-list 1 protocol ip list 150
route-map igrp2ospf permit 10
match ip address 140
set metric 40
!
route-map ospf2igrp deny 10
match ip address 142
!
route-map ospf2igrp permit 20
match ip address 141

R5#sh dialer
BRI0 - dialer type = ISDN
Dial String Successes Failures Last DNIS Last status
0 incoming call(s) have been screened.
0 incoming call(s) rejected for callback.
BRI0:1 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is data link layer up
Dial reason: ip (s=133.1.35.5, d=224.0.0.5)
Interface bound to profile Di0
Current call connected 00:00:27
Connected to 5552000 (user33)
BRI0:2 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is idle
Di0 - dialer type = DIALER PROFILE
Load threshold for dialing additional calls is 127
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is data link layer up
Number of active calls = 1
Dial String Successes Failures Last DNIS Last status
5552000 271 0 00:00:29 successful Default
R5#

R2#
wr t
Building configuration...
Current configuration : 2260 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R2
!
enable password cisco
!
!
!
!
!
ip subnet-zero
ip tcp synwait-time 5
no ip domain-lookup
!
ipx routing 2000.2000.2000
!
!
!
!
!
interface Loopback0
ip address 133.1.2.2 255.255.255.0
ip ospf network point-to-point
!
interface Serial0
ip address 133.1.235.2 255.255.255.0
encapsulation frame-relay
ip ospf message-digest-key 1 md5 cisco
ip ospf hello-interval 50
ip ospf priority 0
ipx network 235
no fair-queue
frame-relay map ipx 235.3000.3000.3000 225 broadcast
frame-relay map ipx 235.5000.5000.5000 225 broadcast
frame-relay map ip 133.1.235.3 225 broadcast
frame-relay map ip 133.1.235.5 225 broadcast
no frame-relay inverse-arp
frame-relay lmi-type cisco
!
interface Serial1
ip address 133.1.12.2 255.255.255.0
encapsulation frame-relay
ipx network 12
frame-relay map ipx 12.1000.1000.1000 221 broadcast
frame-relay map ip 133.1.12.1 221 broadcast
no frame-relay inverse-arp
!
interface TokenRing0
ip address 133.1.22.2 255.255.255.224
ipx network 22
ring-speed 16
!
interface TokenRing1
ip address 133.1.23.2 255.255.255.192
ipx network 23
ring-speed 16
!
router eigrp 1
redistribute ospf 1
passive-interface Loopback0
passive-interface Serial0
passive-interface TokenRing0
passive-interface TokenRing1
network 133.1.0.0
default-metric 64 10 255 1 1500
no auto-summary
no eigrp log-neighbor-changes
!
router ospf 1
log-adjacency-changes
area 0 authentication message-digest
area 3 range 133.1.23.0 255.255.255.0
redistribute eigrp 1 subnets route-map EIGRPSUM
network 133.1.2.0 0.0.0.255 area 0
network 133.1.23.0 0.0.0.63 area 3
network 133.1.235.0 0.0.0.255 area 0
default-metric 100
!
ip classless
ip http server
!
access-list 1 permit any
access-list 120 permit ip host 151.100.0.0 host 255.255.192.0
access-list 142 permit ip host 133.1.35.0 host 255.255.255.0
route-map EIGRPSUM permit 10
match ip address 120
set metric 100
!
route-map EIGRPSUM permit 20
set metric 20
!
route-map ospf2eigrp deny 10
match ip address 142
!
route-map ospf2eigrp permit 20
match ip address 1
!

R3#wr t
Building configuration...
Current configuration : 2056 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R3
!
enable password cisco
!
username R5 password 0 cisco
username user33 password 0 cisco
username user55 password 0 cisco
!
!
!
!
ip subnet-zero
ip tcp synwait-time 5
no ip domain-lookup
!
ipx routing 3000.3000.3000
isdn switch-type basic-dms100
!
!
!
!
!
interface Loopback0
ip address 133.1.3.3 255.255.255.0
ip ospf network point-to-point
!
interface Serial0
ip address 133.1.235.3 255.255.255.0
encapsulation frame-relay
ip ospf message-digest-key 1 md5 cisco
ip ospf hello-interval 50
ip ospf priority 0
ipx network 235
no fair-queue
service-module t1 clock source internal
frame-relay map ipx 235.2000.2000.2000 325 broadcast
frame-relay map ipx 235.5000.5000.5000 325 broadcast
frame-relay map ip 133.1.235.2 325 broadcast
frame-relay map ip 133.1.235.5 325 broadcast
no frame-relay inverse-arp
!
interface Serial1
no ip address
shutdown
!
interface TokenRing0
description VLAN A
ip address 133.1.23.3 255.255.255.192
ipx network 32
ring-speed 16
!
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-dms100
isdn spid1 0555200001 5552000
isdn spid2 0555400001 5554000
ppp authentication chap
ppp multilink
!
interface Dialer0
ip address 133.1.35.3 255.255.255.0
encapsulation ppp
ip ospf message-digest-key 1 md5 dialer
ip ospf network point-to-point
dialer pool 1
dialer remote-name user55
dialer load-threshold 127 either
dialer-group 1
no peer neighbor-route
ppp authentication chap
ppp chap hostname user33
ppp multilink
!
router ospf 1
log-adjacency-changes
area 0 authentication message-digest
network 133.1.3.0 0.0.0.255 area 0
network 133.1.23.0 0.0.0.63 area 3
network 133.1.35.0 0.0.0.255 area 0
network 133.1.235.0 0.0.0.255 area 0
!
ip classless
ip http server
!
access-list 130 permit ip any any
dialer-list 1 protocol ip list 130



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