From: LASSERRE Grégory (gregory.lasserre@xxxxxxxx)
Date: Sun Mar 12 2000 - 17:01:51 GMT-3
I've just solved my problem by restricting the redistribution from rip
into ospf with a route-map. I think rip was redistributing local routes in
ospf
creating a loop with my Virtual Link.
AREA0 -s0 [R2] e0 - AREA 10 - e0 [R10] s0 - AREA15 - s2 [R22]
And there is an RNIS link between R2 and R10 (i've shut down e0 on R10)
However, i've still problem i do not succeed to redistribute correctly in
RIP
the external T2 default route (0.0.0.0) learnt by OSPF :
Debug ip rip on R22 :
"
1d01h: RIP: received v2 update from 113.78.224.10 on Serial2
1d01h: 113.78.220.0/22 -> 0.0.0.0 in 1 hops
1d01h: 113.78.216.0/22 -> 0.0.0.0 in 14 hops
1d01h: 113.78.208.0/21 -> 0.0.0.0 in 14 hops
1d01h: 113.78.200.0/21 -> 0.0.0.0 in 14 hops
1d01h: 113.78.192.0/21 -> 0.0.0.0 in 14 hops
1d01h: 0.0.0.0/0 -> 0.0.0.0 in 16 hops (inaccessible) <= *
1d01h: 1.0.0.0/8 -> 0.0.0.0 in 14 hops
1d01h: 2.0.0.0/8 -> 0.0.0.0 in 14 hops
1d01h: 3.0.0.0/8 -> 0.0.0.0 in 14 hops
"
Here is what gives a show ip route on R10 :
R10#sh ip ro
<...>
Gateway of last resort is 113.78.220.2 to network 0.0.0.0
1.0.0.0/32 is subnetted, 1 subnets
O IA 1.1.1.1 [110/66] via 113.78.220.2, 00:16:20, Dialer1
2.0.0.0/32 is subnetted, 1 subnets
O 2.2.2.2 [110/2] via 113.78.220.2, 00:16:30, Dialer1
3.0.0.0/32 is subnetted, 1 subnets
O IA 3.3.3.3 [110/76] via 113.78.220.2, 00:16:20, Dialer1
4.0.0.0/32 is subnetted, 1 subnets
O IA 4.4.4.4 [110/76] via 113.78.220.2, 00:16:20, Dialer1
113.0.0.0/8 is variably subnetted, 7 subnets, 2 masks
R 113.78.228.0/22 [120/1] via 113.78.224.22, 00:00:19, Serial0
C 113.78.224.0/22 is directly connected, Serial0
C 113.78.220.0/22 is directly connected, Dialer1
O 113.78.216.0/22 [110/11] via 113.78.220.2, 00:16:30, Dialer1
O IA 113.78.208.0/21 [110/75] via 113.78.220.2, 00:16:20, Dialer1
O IA 113.78.200.0/21 [110/75] via 113.78.220.2, 00:16:21, Dialer1
O 113.78.192.0/21 [110/65] via 113.78.220.2, 00:16:31, Dialer1
R 22.0.0.0/8 [120/1] via 113.78.224.22, 00:00:20, Serial0
9.0.0.0/32 is subnetted, 1 subnets
O IA 9.9.9.9 [110/66] via 113.78.220.2, 00:16:21, Dialer1
10.0.0.0/32 is subnetted, 1 subnets
C 10.10.10.10 is directly connected, Loopback0
O*E2 0.0.0.0/0 [110/1] via 113.78.220.2, 00:16:21, Dialer1
R10#
Does someone has ever seen thet before ?
Best regards.
Greg.
--------------------
Here are the confs. :
R10#r
Building configuration...
Current configuration:
!
version 12.0
service timestamps debug datetime
service timestamps log datetime
no service password-encryption
!
hostname R10
!
enable password cisco
!
username R2 password 0 ccieprep
ip subnet-zero
no ip domain-lookup
isdn switch-type basic-net3
isdn tei-negotiation first-call
!
!
!
interface Loopback0
ip address 10.10.10.10 255.255.255.255
no ip directed-broadcast
ip ospf authentication
ip ospf authentication-key arche
ip ospf interface-retry 0
!
interface Ethernet0
ip address 113.78.216.10 255.255.252.0
no ip directed-broadcast
ip ospf interface-retry 0
shutdown
!
interface Serial0
ip address 113.78.224.10 255.255.252.0
no ip directed-broadcast
ip rip send version 2
ip rip receive version 2
ip ospf interface-retry 0
no ip mroute-cache
clockrate 64000
!
interface Serial1
no ip address
no ip directed-broadcast
shutdown
!
interface BRI0
no ip address
no ip directed-broadcast
encapsulation ppp
dialer pool-member 1 max-link 2
isdn switch-type basic-net3
ppp authentication chap pap
ppp multilink
!
interface Dialer1
bandwidth 64000
ip address 113.78.220.10 255.255.252.0
no ip directed-broadcast
encapsulation ppp
ip ospf interface-retry 0
dialer remote-name R2
dialer idle-timeout 20
dialer string 3020
dialer load-threshold 80 either
dialer pool 1
dialer-group 1
ppp authentication chap
ppp multilink
!
router ospf 1
log-adjacency-changes
area 0 authentication
area 10 virtual-link 2.2.2.2
area 15 stub
redistribute rip metric-type 1 subnets route-map rip-to-ospf
passive-interface Serial0
network 10.10.10.10 0.0.0.0 area 15
network 113.78.216.0 0.0.3.255 area 10
network 113.78.220.0 0.0.3.255 area 10
network 113.78.224.0 0.0.3.255 area 15
!
router rip
version 2
redistribute ospf 1 route-map ospf-to-rip
passive-interface Dialer1
passive-interface Ethernet0
network 113.0.0.0
!
ip classless
!
access-list 2 permit 0.0.0.0 log
access-list 3 permit 22.0.0.0 0.255.255.255
access-list 3 permit 113.78.228.0 0.0.3.255
dialer-list 1 protocol ip permit
route-map rip-to-ospf permit 10
match ip address 3
set metric 200
set tag 22
!
route-map ospf-to-rip permit 5
match ip address 2
set metric 15
!
route-map ospf-to-rip permit 10
set metric 14
!
banner motd ^CCCC
########################################
Bienvenue sur le Routeur R10
Maquette GLA / Preparation au LAB CCIE
Routeur utilise jusqu'au 16 Mai 2000
########################################
^C
alias exec c conf t
alias exec r sh run
!
line con 0
exec-timeout 0 0
logging synchronous
transport input none
line aux 0
line vty 0 4
password cisco
login
!
end
R10#
R2#sh run
Building configuration...
Current configuration:
!
version 12.0
service timestamps debug datetime
service timestamps log datetime
no service password-encryption
!
hostname R2
!
enable password cisco
!
username R10 password 0 ccieprep
ip subnet-zero
no ip domain-lookup
isdn switch-type basic-net3
isdn tei-negotiation first-call
!
!
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
no ip directed-broadcast
ip ospf interface-retry 0
!
interface Ethernet0
ip address 113.78.216.2 255.255.252.0
no ip directed-broadcast
ip ospf interface-retry 0
!
interface Serial0
ip address 113.78.192.2 255.255.248.0
no ip directed-broadcast
encapsulation frame-relay
ip ospf authentication-key arche
ip ospf network broadcast
ip ospf interface-retry 0
no ip mroute-cache
frame-relay map ip 113.78.192.1 44 broadcast
frame-relay map ip 113.78.192.2 44 broadcast
frame-relay map ip 113.78.192.9 45 broadcast
!
interface Serial1
no ip address
no ip directed-broadcast
shutdown
!
interface BRI0
no ip address
no ip directed-broadcast
encapsulation ppp
dialer pool-member 1 max-link 2
isdn switch-type basic-net3
ppp authentication chap pap
ppp multilink
!
interface Dialer1
bandwidth 64000
ip address 113.78.220.2 255.255.252.0
no ip directed-broadcast
encapsulation ppp
ip ospf interface-retry 0
ip ospf demand-circuit
dialer remote-name R10
dialer idle-timeout 20
dialer fast-idle 5
dialer string 3008
dialer load-threshold 80 either
dialer pool 1
dialer-group 1
ppp authentication chap
ppp multilink
!
router ospf 1
area 0 authentication
area 10 virtual-link 10.10.10.10
network 2.2.2.2 0.0.0.0 area 0
network 113.78.192.0 0.0.7.255 area 0
network 113.78.216.0 0.0.3.255 area 10
network 113.78.220.0 0.0.3.255 area 10
!
ip classless
!
access-list 1 permit any
dialer-list 1 protocol ip permit
banner motd ^CCCC
########################################
Bienvenue sur le Routeur R2
Maquette GLA / Preparation au LAB CCIE
Routeur utilise jusqu'au 16 Mai 2000
########################################
^C
alias exec c conf t
alias exec r sh run
alias exec tl term length
!
line con 0
exec-timeout 0 0
logging synchronous
transport input none
line aux 0
line vty 0 4
password cisco
login
!
end
R2#
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Switch
!
enable password cisco
!
ip subnet-zero
no ip domain-lookup
frame-relay switching
isdn switch-type basic-net3
isdn tei-negotiation first-call
!
!
!
interface Loopback0
ip address 22.22.22.22 255.255.255.0
no ip directed-broadcast
!
interface Ethernet0
ip address 113.78.228.22 255.255.252.0
no ip directed-broadcast
ip rip receive version 1
!
interface Serial0
bandwidth 2000000
no ip address
no ip directed-broadcast
encapsulation frame-relay
clockrate 2000000
frame-relay intf-type dce
frame-relay route 44 interface Serial1 44
!
interface Serial1
bandwidth 148000
no ip address
no ip directed-broadcast
encapsulation frame-relay
clockrate 148000
frame-relay intf-type dce
frame-relay route 44 interface Serial0 44
frame-relay route 45 interface Serial3 45
!
interface Serial2
bandwidth 64000
ip address 113.78.224.22 255.255.252.0
no ip directed-broadcast
ip rip send version 2
ip rip receive version 2
!
interface Serial3
no ip address
no ip directed-broadcast
encapsulation frame-relay
clockrate 64000
frame-relay intf-type dce
frame-relay route 45 interface Serial1 45
!
interface Serial4
no ip address
no ip directed-broadcast
shutdown
!
interface Serial5
no ip address
no ip directed-broadcast
shutdown
!
interface Serial6
no ip address
no ip directed-broadcast
shutdown
!
interface Serial7
no ip address
no ip directed-broadcast
shutdown
!
interface Serial8
no ip address
no ip directed-broadcast
shutdown
!
interface Serial9
no ip address
no ip directed-broadcast
shutdown
!
interface BRI0
no ip address
no ip directed-broadcast
shutdown
isdn switch-type basic-net3
!
router rip
passive-interface Ethernet0
network 22.0.0.0
network 113.0.0.0
!
no ip classless
!
banner motd ^CCC
########################################
Bienvenue sur le Routeur Switch
Maquette GLA / Preparation au LAB CCIE
Routeur utilise jusqu'au 16 Mai 2000
########################################
^C
no alias exec r
alias exec sr show run
alias exec ct conf t
alias exec tl terminal length
!
line con 0
exec-timeout 0 0
logging synchronous
transport input none
line aux 0
exec-timeout 0 0
logging synchronous
line vty 0 4
password cisco
login
!
end
Switch#
> -----Message d'origine-----
> De: LASSERRE Grégory [SMTP:gregory.lasserre@arche.fr]
> Date: dimanche 12 mars 2000 19:17
> À: ccielab@groupstudy.com
> Cc: 'Earl Aboytes'
> Objet: RE: ISDN and NSSA
>
>
> I also encounter the problem, but in my case Type 5 LSAs are keeping my
> circuit up
> (RIP redistributed in OSPF by my ASBR - normal Area).
>
> If i remove the rip redistribution from my ASBR, the circuit goes down
> after
> a while,
> and then the demand circuit works fine.
>
> Here are the log :
>
> OSPF: Generate external LSA 113.78.220.2, mask 255.255.255.255, type 5,
> age
> 3600, metric 16777215, seq 0x80000054
> OSPF: Start timer for Nbr 2.2.2.2 after adding 113.78.220.2 type 5 caller
> 0x3396AE6
> OSPF: Sending update on Dialer1 to 224.0.0.5
> OSPF: Send Type 5, LSID 113.78.220.2, Adv rtr 10.10.10.10, age 3600, seq
> 0x80000054
> IP: s=113.78.220.10 (local), d=224.0.0.5 (Dialer1), len 84, sending
> broad/multicast
>
> Does anybody knows a workaround to this problem ?
>
> Best regards.
> Greg.
>
> > -----Message d'origine-----
> > De: Earl Aboytes [SMTP:earl@linkline.com]
> > Date: dimanche 12 mars 2000 10:54
> > À: ccielab@groupstudy.com
> > Objet: ISDN and NSSA
> >
> > I thought that I would share something that I recently discovered. I
> hope
> > this isn't obvious to the rest of you.
> >
> > If you are injecting a distance vector routing protocol into OSPF and
> ISDN
> > is using OSPF as its routing protocol, a multicast with address
> 224.0.0.5
> > (all spf routers) will keep your circuit up forever. Even with the ip
> ospf
> > demand-circuit command this still occurs. OSPF sees these external
> routes
> > and floods them as Type 7 LSA's.
> >
> > My first thoughts were to configure the offending areas as NSSAs. Area
> 1
> > is one of the areas but has a virtual link running through it. Is this
> a
> > concern? The other area is area 0 which cannot be configured as a NSSA.
> > I was left with no choice but to configure 224.0.0.5 as uninteresting
> > traffic. Am I right?
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > Earl Aboytes
> > Senior Technical Consultant
> > GTE-Managed Solutions
> > 800-483-5325 x8817
> > earl.aboytes@telops.gte.com
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
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