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Router-on-a-stick configuration in OSPF?

iamjeffjeff1
Level 1
Level 1

Hello there friends. First of all, I want to congratulate myself for passing my CCNA R&S and right now I am doing some practice on my own. Here is the situation. I have a network in router A which has a different vlans on it so I configure to run a router-on-a-stick and it runs fine. Later on, I decided to add another router which is router B and it also have different vlans in there (also Router-on-a-stick runs smoothly). Now I want router A hosts to communicate with router B hosts so I used OSPF on it but the problems seem to be on the subinterfaces I think? Because it did not advertised all of the networks inside Router A to Router B. I could see that there is adjacency changes but when I issue #sh ip route all I can see is directly connected and no signs of ospf at all. I am new to CISCO so I hope you guys could guide me on this.

 

3 Replies 3

Vinay Sharma
Level 7
Level 7

Community Moderator notes: Moved the content to correct community.

Thanks & Regards

mfurnival
Level 4
Level 4

Can you post your two router configs please?

Joseph W. Doherty
Hall of Fame
Hall of Fame

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Posting

Your two routers, for their local "stick" routing, don't require any routing protocol for them to route between the locally connected VLANs.  So, if you're enabled OSPF, I wonder, are your local VLAN networks make known to OSPF?

PS:

As Mfurnival has asked, posting the router configs would be a huge help.

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