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OSPF Help

adam.cattell1
Level 1
Level 1

I'm trying to do this project and i got the serial wires to work properly, but the cross-over wires are not communicating. I'm not sure what I'm doing wrong. Any help is appreciated. I'm on pt 6.2. 

 

I've attached my project file here

if you don't have pt 6.2 ill also link that here

 

Thank you!

10 Replies 10

If I am right, I don't open the file but 
this for example 
check if the Serial Port 1 in R1 connect to Serial Port 1 in R2 Subnet 10.0.0.0
                   Serial Port 2 in R1 connect to Serial Port 1 in R3 subnet 20.0.0.0
BUT
you misconfig the IP address in R1 serial port 1 with 20.0.0.0 and serial port 2 with 10.0.0.0

I do this mistake a lot.

second thing Keep notice that 
net x.x.x.x wildcard not mask area
check the area is same in both router must be same for each link.

i'm not sure what you mean to be honest. 

I can not open PKT file 
share only the config of R1 here

Router#sh run

Building configuration...

 

Current configuration : 916 bytes

!

version 12.2

no service timestamps log datetime msec

no service timestamps debug datetime msec

no service password-encryption

!

hostname Router

!

!

!

!

!

!

!

!

ip cef

no ipv6 cef

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

interface FastEthernet0/0

ip address 155.165.10.1 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet1/0

no ip address

duplex auto

speed auto

shutdown

!

interface Serial2/0

ip address 10.0.0.1 255.0.0.0

clock rate 64000

!

interface Serial3/0

ip address 20.0.0.1 255.0.0.0

clock rate 64000

!

interface FastEthernet4/0

no ip address

shutdown

!

interface FastEthernet5/0

no ip address

shutdown

!

router ospf 2

log-adjacency-changes

network 20.0.0.0 0.255.255.255 area 0

network 10.0.0.0 0.255.255.255 area 0

network 155.0.0.0 0.255.255.255 area 0

!

ip classless

!

ip flow-export version 9

!

!

!

no cdp run

!

!

!

!

!

line con 0

!

line aux 0

!

line vty 0 4

login

!

!

!

end

router ospf 2

log-adjacency-changes

network 20.0.0.0 0.255.255.255 area 0

network 10.0.0.0 0.255.255.255 area 0

network 155.0.0.0 0.255.255.255 area 0 <- this include all 155.0.0.0/8 and that wrong 
there is subnet 155.165.1.x/x connect to R6 have same subnet with this MAJOR subnet 155.0.0.0/8

"net x.x.x.x wildcard not mask area
check the area is same in both router must be same for each link."


so you need only re enter the net and check the interface IP address and subnet.

The link between router must be on the same network segment:

Rotuer 2 -

 

interface FastEthernet1/0

ip address 30.2.30.2 255.0.0.0

duplex auto

speed auto

 

Router 7

 

interface FastEthernet1/0

ip address 10.1.10.1 255.0.0.0

duplex auto

speed auto

!

 

This interface looks interconnected but they are in a different network.  Check that.

R7 could be:

 

interface FastEthernet1/0

ip address 30.2.30.1 255.0.0.0

duplex auto

speed auto

!

i tried the ip add on r7 and it gave me the error "30.0.0.0 overlaps with FastEthernet6/0"

then you need to reorganize your addressing.  Use another network  on  interface 6 or use different on between 2 and 7 routers.

 

Create a spread sheet or notepad and distribute the networks accordingly. This is a important part of the study.

Router needs to be on the same network to comunicate directly but at the same time they need the interfaces to be in differents segments.

Hello,

 

post the project instructions you are following (if you are following any). The project you posted looks incomplete, with some routers running OSPF, and others aren't. The instructions should also indicate which IP addressing scheme you are supposed to use.

he said we had to use our own ip addresses. these are the instructions: Using the OSPF Project.png diagram located in this module, duplicate the network and configure routing using the OSPF protocol only.  All PCs should be able to ping each other.  You will have to develop your own IP scheme, configure all the interfaces in addition to establishing the routing.  There is a total of 10 networks in this project.  Save your work and upload the finished .pkt back into canvas.  If you missed the OSPF demo in class pay special attention to the videos attached to the module in addition to the testout lectures