OSPF over Frame-Relay

Written by Rene Molenaar on 21 June 2010. Posted in Frame Relay

Scenario:

After successfully configuring the previous frame-relay lab you feel it's time to try and run OSPF over this frame-relay link. OSPF knows many different network types and every type has a different solution, up to you to try them all out!

Hint: this lab uses the same topology as the "Frame-Relay Basics" lab, make sure you configured this lab first, then continue with this one.

Goal:

Create loopbacks on all routers:
Paris: 1.1.1.1 /24
Berlin: 2.2.2.2 /24
Stockholm: 3.3.3.3 /24
Configure OSPF on all routers using the point-to-multipoint interface (192.168.123.X subnet).
Advertise all loopbacks in OSPF.
Paris should be the OSPF designated router.
Configure the OSPF network type on all routers to "Broadcast", ensure you have full connectivity to all subnets.
Configure the OSPF network type on all routers to "Non-Broadcast", ensure you still have full connectivity.
Configure the OSPF network type on all routers to "Point-to-Multipoint", ensure you still have full connectivity.
Configure the OSPF network type on all routers to "Point-to-Multipoint non-broadcast", ensure you still have full connectivity.

It took me 1000s of hours reading books and doing labs, making mistakes over and over again until I mastered all the routing protocols for CCNP.

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IOS:

c3640-jk9s-mz.124-16.bin

Topology:

OSPF over Frame-Relay

Video Solution:

You need to register to download the GNS3 Topology File. (Registration is Free!)

Related Articles: OSPF Single Area
Frame-Relay Basics
OSPF Intermediate
OSPF Virtual Link and Summarization
ICND2 Assessment Lab

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Comments (16)

majuza
2010-09-01 15:29:00

Hi Everyone, I m trying to add these configs on to GNS3 an I get this error message"206-unable to create UDP NIO" please help

dmb2002man
2010-09-22 03:32:53

Is there a way to setup a dlci from stockholm to berlin. How would you connect the serial connection for it. It would be for redundancy in case Paris router went down then stockholm and berlin could still reach each other.

thanks

ReneMolenaar
2010-09-22 09:11:02

Hi Joe,

This is no problem...just create another PVC on the Frame-Relay switch. You could use DLCI 203 on router Berlin and DLCI 302 on router Stockholm.

On the frame-relay switch you need to configure this PVC:

Serial 0/1
Frame-relay route 203 S0/2 302

Serial 0/2
Frame-relay route 302 s0/1 203

That takes care of the frame-relay switch.

Of course on the Routers you need to configure this PVC as well...you can create a new sub-interface and put the DLCI there.

cisco.trainer@yahoo.com
2010-10-25 13:48:44

download link not avialable

ReneMolenaar
2010-10-25 19:54:29

You are right, will need to fix this one...

Paul Lawley-Walker
2011-06-12 14:25:56

Great tutorial .... Many thanks, I learned lots from this vid ...

Kaage
2011-06-14 12:06:24

Hi, there are only startup configs without .net file

uscallesen
2011-09-14 10:08:52

The GNS3 topology file is missing !

binaryops
2012-01-12 22:50:35

Hey Rene, did this get left out of the .zip file by chance? It's not there and wanted to see if you could upload it please!

Thank you so much!
Binaryops

sunyijanika
2012-05-11 17:32:50

Can somebody help me with this lab?? I configured it but, Unfortunately I can just see one ospf route on Paris, I got confused..

FRSW

FRSW#sh frame-relay route
Input Intf Input Dlci Output Intf Output Dlci Status
Serial0/0 102 Serial0/1 201 active
Serial0/0 103 Serial0/2 301 active
Serial0/1 201 Serial0/0 102 active
Serial0/2 301 Serial0/0 103 active

R1

interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
interface Serial0/0
no ip address
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/0.1 multipoint
ip address 192.168.123.1 255.255.255.0
ip ospf priority 100
frame-relay map ip 192.168.123.2 102 broadcast
frame-relay map ip 192.168.123.3 103 broadcast
!
router ospf 1
log-adjacency-changes
network 1.1.1.0 0.0.0.255 area 0
network 192.168.123.0 0.0.0.255 area 0
neighbor 192.168.123.2
neighbor 192.168.123.3

--------------------
Paris#sh ip route

Gateway of last resort is not set

C 192.168.123.0/24 is directly connected, Serial0/0.1
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
3.0.0.0/32 is subnetted, 1 subnets
O 3.3.3.3 [110/65] via 192.168.123.3, 00:16:22, Serial0/0.1

R2

interface Loopback0
ip address 2.2.2.2 255.255.255.0
!
interface Serial0/0
no ip address
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/0.2 multipoint
ip address 192.168.123.2 255.255.255.0
frame-relay map ip 192.168.123.1 201 broadcast
frame-relay map ip 192.168.123.3 201 broadcast
!
router ospf 1
log-adjacency-changes
network 2.2.2.0 0.0.0.255 area 0
network 192.168.123.0 0.0.0.255 area 0

------------------
Berlin#sh ip route

Gateway of last resort is not set

C 192.168.123.0/24 is directly connected, Serial0/0.2
2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback0

R3

interface Loopback0
ip address 3.3.3.3 255.255.255.0
!
interface Serial0/0
no ip address
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/0.3 multipoint
ip address 192.168.123.3 255.255.255.0
frame-relay map ip 192.168.123.1 301 broadcast
frame-relay map ip 192.168.123.2 301 broadcast

router ospf 1
log-adjacency-changes
network 3.3.3.0 0.0.0.255 area 0
network 192.168.123.0 0.0.0.255 area 0

-----------------------
Stockholm#sh ip route

Gateway of last resort is not set

C 192.168.123.0/24 is directly connected, Serial0/0.3
1.0.0.0/32 is subnetted, 1 subnets
O 1.1.1.1 [110/65] via 192.168.123.1, 004:22, Serial0/0.3
3.0.0.0/24 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Loopback0

What did I miss? please!

sunyijanika
2012-05-12 09:38:10

enter your message here...

sunyijanika wrote:
Can somebody help me with this lab?? I configured it but, Unfortunately I can just see one ospf route on Paris, I got confused..

FRSW

FRSW#sh frame-relay route
Input Intf Input Dlci Output Intf Output Dlci Status
Serial0/0 102 Serial0/1 201 active
Serial0/0 103 Serial0/2 301 active
Serial0/1 201 Serial0/0 102 active
Serial0/2 301 Serial0/0 103 active

R1

interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
interface Serial0/0
no ip address
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/0.1 multipoint
ip address 192.168.123.1 255.255.255.0
ip ospf priority 100
frame-relay map ip 192.168.123.2 102 broadcast
frame-relay map ip 192.168.123.3 103 broadcast
!
router ospf 1
log-adjacency-changes
network 1.1.1.0 0.0.0.255 area 0
network 192.168.123.0 0.0.0.255 area 0
neighbor 192.168.123.2
neighbor 192.168.123.3

--------------------
Paris#sh ip route

Gateway of last resort is not set

C 192.168.123.0/24 is directly connected, Serial0/0.1
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
3.0.0.0/32 is subnetted, 1 subnets
O 3.3.3.3 [110/65] via 192.168.123.3, 00:16:22, Serial0/0.1

R2

interface Loopback0
ip address 2.2.2.2 255.255.255.0
!
interface Serial0/0
no ip address
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/0.2 multipoint
ip address 192.168.123.2 255.255.255.0
frame-relay map ip 192.168.123.1 201 broadcast
frame-relay map ip 192.168.123.3 201 broadcast
!
router ospf 1
log-adjacency-changes
network 2.2.2.0 0.0.0.255 area 0
network 192.168.123.0 0.0.0.255 area 0

------------------
Berlin#sh ip route

Gateway of last resort is not set

C 192.168.123.0/24 is directly connected, Serial0/0.2
2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback0

R3

interface Loopback0
ip address 3.3.3.3 255.255.255.0
!
interface Serial0/0
no ip address
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/0.3 multipoint
ip address 192.168.123.3 255.255.255.0
frame-relay map ip 192.168.123.1 301 broadcast
frame-relay map ip 192.168.123.2 301 broadcast

router ospf 1
log-adjacency-changes
network 3.3.3.0 0.0.0.255 area 0
network 192.168.123.0 0.0.0.255 area 0

-----------------------
Stockholm#sh ip route

Gateway of last resort is not set

C 192.168.123.0/24 is directly connected, Serial0/0.3
1.0.0.0/32 is subnetted, 1 subnets
O 1.1.1.1 [110/65] via 192.168.123.1, 004:22, Serial0/0.3
3.0.0.0/24 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Loopback0

What did I miss out? please!

ReneMolenaar
2012-05-16 09:29:28

Check the OSPF network type for the serial interface. I believe by default it's non-broadcast. You'll have to change the network type or specify neighbors manually.

sunyijanika
2012-05-16 12:24:19

Thanks! You're right, default is non-broadcast. I just left a neighbor command on one of the spoke routers, but without that command the neighborship came up.

ReneMolenaar
2012-06-08 12:59:12

Excellent, good to see you found the answer.

beko
2012-10-21 09:21:04

Guys this is the same Configs like Frame Relay Basic just modify

dfariasvargas
2012-11-02 03:52:49

Hi Rene, i'm trying to get the topology for this exercice and it does not appear... Greetings from Chile!

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OSPF over Frame-Relay

Scenario:

Goal:

IOS:

Topology:

Video Solution:

Comments (16)