From: Scott Hoover (dizzy74_98@xxxxxxxxx)
Date: Fri Jan 11 2002 - 16:50:29 GMT-3
On R5, filter the route for the BRI from being
redistributed into OSPF. It appears you may have the
classic ISDN loop.
--- Bryan Ginman <ginmanb@westnet.com> wrote:
> what does it say in your debugs for ip routing and
> dialer?
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of
> EA Louie
> Sent: Friday, January 11, 2002 3:10 AM
> 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
>
=== message truncated ===
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