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ospf help configuration

i_hanu
Level 1
Level 1

Hi! 

How can I configure this network to have ping from CiscoLinuxBased-2/CiscoLinuxBased-3/CiscoLinuxBased-4 in Ubuntu?

I configured ospf between routers and I also advertise 192.168.107.0/24 in ospf on CiscoLinuxBased-1.

I attached 2 photos.

This is the config from routers:

CiscoLinuxBased-1

 

 

interface GigabitEthernet0/1
ip address 10.0.0.13 255.255.255.252
duplex auto
speed auto
media-type rj45
!
interface GigabitEthernet0/2
ip address 10.0.0.1 255.255.255.252
duplex auto
speed auto
media-type rj45

router ospf 1
network 10.0.0.0 0.0.0.3 area 0
network 10.0.0.12 0.0.0.3 area 0
network 192.168.107.0 0.0.0.255 area 0

 

 

CiscoLinuxBased-2

 

 

interface GigabitEthernet0/0
 ip address 10.0.0.2 255.255.255.252
 duplex auto
 speed auto
 media-type rj45
!
interface GigabitEthernet0/1
 ip address 10.0.0.5 255.255.255.252
 duplex auto
 speed auto
 media-type rj45

router ospf 1
 network 10.0.0.0 0.0.0.3 area 0
 network 10.0.0.4 0.0.0.3 area 0
!

 

 

 

CiscoLinuxBased-3

 

 

 

interface GigabitEthernet0/0
 ip address 10.0.0.9 255.255.255.252
 duplex auto
 speed auto
 media-type rj45
!
interface GigabitEthernet0/1
 ip address 10.0.0.14 255.255.255.252
 duplex auto
 speed auto
 media-type rj45

router ospf 1
 network 10.0.0.8 0.0.0.3 area 0
 network 10.0.0.12 0.0.0.3 area 0

 

 

CiscoLinuxBased-4

 

 

 

 

interface GigabitEthernet0/0
 ip address 10.0.0.10 255.255.255.252
 duplex auto
 speed auto
 media-type rj45
!
interface GigabitEthernet0/1
 ip address 10.0.0.6 255.255.255.252
 duplex auto
 speed auto
 media-type rj45

router ospf 1
 network 10.0.0.4 0.0.0.3 area 0
 network 10.0.0.12 0.0.0.3 area 0

 

 

 

 

6 Replies 6

Hi

 I believe you made one mistake on CiscoLinuxBased-4.  You add the network 10.0.0.12 instead 10.0.0.8.

You need to make sure the router is receiving the network 192.168.107.0. You can check with show ip route  and you need to make sure your linux server have a route to the network 10.0.0.0.

 

I modified that network on CiscoLinuxBased-4

I received the route 192.168.107.0 on all routers, I have from all routers in 192.168.107.139. 

192.168.107.137 is on CiscoLinuxBased-1 (int g0/0), but  192.168.107.139 does not respond to ping.

How can I configure on ubuntu a router to 10.0.0.0?

CiscoLinuxBased-3#show ip route 192.168.107.0
Routing entry for 192.168.107.0/24
Known via "ospf 1", distance 110, metric 2, type intra area
Last update from 10.0.0.13 on GigabitEthernet0/1, 01:16:17 ago
Routing Descriptor Blocks:
* 10.0.0.13, from 192.168.107.139, 01:16:17 ago, via GigabitEthernet0/1
Route metric is 2, traffic share count is 1

CiscoLinuxBased-4#show ip route 192.168.107.0
Routing entry for 192.168.107.0/24
Known via "ospf 1", distance 110, metric 3, type intra area
Last update from 10.0.0.9 on GigabitEthernet0/0, 00:00:46 ago
Routing Descriptor Blocks:
10.0.0.9, from 192.168.107.139, 00:00:46 ago, via GigabitEthernet0/0
Route metric is 3, traffic share count is 1
* 10.0.0.5, from 192.168.107.139, 01:16:15 ago, via GigabitEthernet0/1
Route metric is 3, traffic share count is 1

ip route add <Destination Address> dev <Interface Name> 2--IP

 

https://www.geeksforgeeks.org/how-to-add-route-in-ubuntu/

 

share the show ip ospf neighbor in all routers

MHM

Here:

CiscoLinuxBased-1#show ip ospf neighbor

Neighbor ID Pri State Dead Time Address Interface
10.0.0.14 1 FULL/BDR 00:00:36 10.0.0.14 GigabitEthernet0/1
10.0.0.5 1 FULL/BDR 00:00:38 10.0.0.2 GigabitEthernet0/2


CiscoLinuxBased-2#show ip ospf neighbor

Neighbor ID Pri State Dead Time Address Interface
10.0.0.10 1 FULL/BDR 00:00:31 10.0.0.6 GigabitEthernet0/1
192.168.107.139 1 FULL/DR 00:00:39 10.0.0.1 GigabitEthernet0/0

CiscoLinuxBased-3#show ip ospf neighbor

Neighbor ID Pri State Dead Time Address Interface
192.168.107.139 1 FULL/DR 00:00:38 10.0.0.13 GigabitEthernet0/1
10.0.0.10 1 FULL/BDR 00:00:35 10.0.0.10 GigabitEthernet0/0


CiscoLinuxBased-4#show ip ospf neighbor

Neighbor ID Pri State Dead Time Address Interface
10.0.0.14 1 FULL/DR 00:00:30 10.0.0.9 GigabitEthernet0/0
10.0.0.5 1 FULL/DR 00:00:32 10.0.0.5 GigabitEthernet0/1

 

that good 
now 
show ip ospf interface brief 

MHM