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New Member

problem ospf ip route...

Hello, i've i little problem with my PT.

 

i'm gonna configure ospf on my router (a basic ospf), just to see how ospf work 

I want all pc communicate !

But after insert all of network connected to the network, all of my router do not create the ip route 

 

 

password for all equipement : tech

 

The networks connected to the Router2 are:

 

172.18.0.0 0.0.63.255

172.18.64.64 0.0.0.63

172.18.64.128 0.0.0.63

172.18.64.192 0.0.0.63

3.0.0.0 0.255.255.255

192.168.0.0 0.0.0.255

 

The network connected to the Router0 are :

 

172.16.0.0 0.0.31.255

172.16.32.0 0.0.31.255

172.16.64.32 0.0.0.31

172.16.64.64 0.0.0.31

172.16.64.96 0.0.0.31

172.16.64.128 0.0.0.31

172.16.64.160 0.0.0.31

2.0.0.0 0.255.255.255

1.0.0.0 0.255.255.255

3.0.0.0 0.255.255.255

192.168.0.0 0.0.0.255

 

The network connected to the Router3 are :

 

172.17.0.0 0.0.63.255

172.17.64.64 0.0.0.63

  172.17.64.128 0.0.0.63

172.17.64.192 0.0.0.63

  2.0.0.0 0.255.255.255

192.168.0.0 0.0.0.255

 

The network connected to the Router 4 are :

 

172.19.0.0 0.0.63.255

172.19.64.64 0.0.0.63

172.19.64.128 0.0.0.63

172.19.64.192 0.0.0.63

1.0.0.0 0.255.255.255

192.168.0.0 0.0.0.255

 

 

 

PT in attachment

 

Thanks or u help

2 ACCEPTED SOLUTIONS

Accepted Solutions

Hi,You are using same ip

Hi,
You are using same ip address on Fa0/0 interfaces on different routers, that ip address ospf used for process ID. You can not use same ospf ID, this cause the problem.

Try to reload router or ospf

Try to reload router or ospf process. For me seams to working ) 

12 REPLIES
New Member

 If it is a basic config and

 

If it is a basic config and you just want to get ip route for ospf to show up then do couple of simply task:

make sure the 4 routers are able to ping each other's directly connected link and then configure ospf like:

router ospf 1

net 0.0.0.0 255.255.255.255 a 0

let me know how you get on!

New Member

Hello rhirani12, thanks for u

Hello rhirani12,

 

thanks for u help !

So, i add this network with my other network or on my 4 routers i have just this rules on my ospf configuration ?

 

regards!

New Member

Indeed!

Indeed!

New Member

So,i clear my ospf, and i

So,

i clear my ospf, and i recreate my ospf juste with net 0.0.0.0 255.255.255.255 a 0" but know just two router have the route. I feel, pt is time to time totally random...

 

New Member

 Are all 4 routers able to

 

Are all 4 routers able to ping each other?

Can you share you interface/ospf config ?

New Member

Yes my 4 router able to ping

Yes my 4 router able to ping each other !

But it's very strange because, my router "paris" have the ip route from "lille" and "lille" have route from "paris", but marseille and lyon, havé nothing, just their route "connected"..

 

Hi,You are using same ip

Hi,
You are using same ip address on Fa0/0 interfaces on different routers, that ip address ospf used for process ID. You can not use same ospf ID, this cause the problem.

New Member

when u say : fa0/0, it's just

when u say : fa0/0, it's just the hsrp interface or the fa sub interface too ? 

 

regards

I talk about interface

I talk about interface address. Use "show ip ospf" command to look ospf proccess id.
OSPF chooses proccess id by:
1. Highest ip address of loopback;
2. Highest  ip address of physical interface.

 

New Member

Hello,Ok, i change the 192

Hello,

Ok, i change the 192.168.0.0 network, to 192.168.0.0 for paris, 1.0 lille, 2.0, lyon and 3.0 marseille, but the problem stay the same.

 

i upload a the version of my PT

Try to reload router or ospf

Try to reload router or ospf process. For me seams to working ) 

New Member

Hello,omg, work perfectly

Hello,

omg, work perfectly :D

So i've another question but it's not about ospf but about the stp (i know i'm on the wan section but, i ask my question anyway :D)

 

on my PT, on my switch0, "spanning-tree vlan 1-8 priority 61440" and "spanning-tree vlan 1-8 root primary" with this all of pc port in portfast, it's sufficient for a correct spannin-tree ? (beginner)

 

Thanks a lot Kirill !

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