09-23-2021 10:42 AM - edited 09-23-2021 10:49 AM
Doing a project for my job interview,
one of my goals is to connect everything using different technologies,
I did multi area OSPF here with a back bone and all
R4 and R0 connect well to R2,R5,R6 and R6 connect to R4 and R0
The problem is with R3 and R7
They connect well inside of the their area, R3 pings R0,R4,R1 and R7 pings R6 and R5
but both of them cant ping outside their of their area.
here is the commands :
for R3:
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0.111
encapsulation dot1Q 111
ip address 172.17.111.254 255.255.255.0
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
ip address 10.17.12.9 255.255.255.252
!
interface Serial0/1/0
no ip address
clock rate 2000000
shutdown
!
interface Serial0/2/0
no ip address
clock rate 2000000
shutdown
!
interface Serial0/3/0
no ip address
clock rate 2000000
shutdown
!
interface Vlan1
no ip address
shutdown
!
router ospf 10
router-id 1.1.1.1
log-adjacency-changes
passive-interface FastEthernet0/0
network 10.17.111.0 0.0.0.255 area 22
network 10.17.12.8 0.0.0.3 area 22
for R7:
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0.45
encapsulation dot1Q 45
ip address 10.17.45.253 255.255.255.0
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
!
interface Serial0/0/0
ip address 10.17.12.22 255.255.255.252
clock rate 2000000
!
interface Serial0/1/0
no ip address
clock rate 2000000
shutdown
!
interface Serial0/2/0
no ip address
clock rate 2000000
shutdown
!
interface Serial0/3/0
no ip address
clock rate 2000000
shutdown
!
interface Vlan1
no ip address
shutdown
!
router ospf 10
router-id 2.2.2.1
log-adjacency-changes
passive-interface FastEthernet0/0
network 10.17.45.0 0.0.0.255 area 10
network 10.17.12.20 0.0.0.3 area 10
Solved! Go to Solution.
09-23-2021 01:31 PM
You need to reload both routers after removing that line...
Install version 8, that is always (backwards) compatible with all earlier versions...
09-23-2021 10:50 AM
Hello,
it is difficult to see what the ABRs are for the given areas. Post the zipped Packet Tracer project (.pkt) file...
09-23-2021 10:56 AM
09-23-2021 11:42 AM
Hello,
the problem were the lines marked in bold. These lines made all interfaces part of the backbone area as well, which is incorrect. After removing these statements I could ping from anywhere to anywhere...
Attached the working file with end to end connectivity...
R5
router ospf 10
router-id 2.2.2.3
log-adjacency-changes
passive-interface FastEthernet0/0
network 10.17.132.0 0.0.0.255 area 10
network 10.17.12.16 0.0.0.3 area 10
network 10.17.0.0 0.0.255.255 area 0
network 192.168.10.4 0.0.0.3 area 0
R1
router ospf 10
router-id 1.1.1.4
log-adjacency-changes
passive-interface FastEthernet0/0
network 10.17.12.12 0.0.0.3 area 22
network 10.17.12.0 0.0.0.3 area 22
network 10.17.21.0 0.0.0.255 area 22
network 10.17.143.0 0.0.0.255 area 22
network 10.17.0.0 0.0.255.255 area 0
network 172.17.111.0 0.0.0.255 area 0
network 192.168.10.0 0.0.0.3 area 0
09-23-2021 11:46 AM
Can you explain why? From what I remember you need to to give the addresses to the backbone in order to connect the two different areas
09-23-2021 12:35 PM
Hello,
one interface cannot be part of two areas. Typically, on an ABR, only the interface connected to the backbone is member of area 0.
09-23-2021 12:38 PM
I removed both of those myself and they still can't Ping, why?
09-23-2021 12:43 PM
And your Packet tracer version is not comptable with mine So I cannot look into your file
09-23-2021 01:31 PM
You need to reload both routers after removing that line...
Install version 8, that is always (backwards) compatible with all earlier versions...
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