Can't ping

[Andre2020]

Hello!

I am starting a lab where I will be implementing several protocols.
To start with, I am just trying to get all the equipment to communicate.

I have 3 routers on the left and 3 on the right and a Switch symbolizing a carrier.
To separate the traffic, I created vlans on the Switch and their respective SVI's.
After that I implemented a routing protocol, OSPF.

All the routers receive all the other routes, but I can't ping any equipment.

E.g:

I cannot ping from R1 to R2, R3 and R4 and vice versa
I ping all directly connected interfaces normally

I don't know what the problem might be.

Translated with www.DeepL.com/Translator (free version)

[Jon Marshall]

You haven't included R1's configuration. 

If we just concentrate on R1 and R2 at the moment, can you also post a "sh ip route" from both of them. 

Jon

[Andre2020]

@Jon Marshall 

Sorry, it had not been possible to attach the R1 configuration.

But now I've managed and it's here along with the "show ip route" from both. You can see that all routes are learned.

[Jon Marshall]

So just to clarify, you cannot ping any loopbacks on the remote routers ? 

Can you post "sh ip route" from the switch ? 

Also R3 does not have OSPF configured so you won't be able to ping that one. 

Jon

[Andre2020]

@Jon Marshall 

Yes, I can't ping do any loopbacks on the remote routers.

I have attached "sh ip route" from the switch and some ping tests from R1, as an example of failure.

Thanks for letting me know about R3. I just configured OSPF on it and it is working fine.

[Jon Marshall]

Bit of a weird one as it is not just loopbacks you can't ping, you can't ping the physical interface IPs of the remote routers either. 

It is as though the switch is not forwarding on the packets as the routers have all the necessary routes as far as I can see. 

Jon

[AliDoskii]

Can you traceroute one of the remote loopback from R1? 
or tray debugging ospf event or adj to see what is going on there
pease post them here the result of both .
if you dont mind could you please export you lab and link it here i wanna do it in my environment.

[Andre2020]

@Jon Marshall Very strange.
I think it really could be a problem in the Switch and it's not routing the frames. But I don't know how I can solve it.

@AliDoskii Attached is the traceroute, the debug output and the exported lab.

[Georg Pauwen]

Hello,

I recreated your setup in a lab and I can ping anything. Did you create the Vlans on the Inernet switch ?

Internet#conf t

Internet(config)#vlan 10/vlan 20/vlan 30/vlan 40 

?

When you do a 'show ip int brief' on the switch, are all Vlan interfaces up/up ?

[Andre2020 · Accepted solution]

@Georg Pauwen 

I had created the vlan's on the Switch yes and had created this topology in another simulator too and it worked fine.

As a solution, I changed the switch for another switch, a Nexus 9k, and now, everything is working fine.

Maybe the switch image had some problems.

But, thanks for all your support, guys.

[AliDoskii]

Great to hear that you solved.