Thanks Julio,Can you provide me with your packet tracer version name? The attached file does not work on packet tracer 5.0.

Thank you sir,i understand now the problem .

I created this lab to explain what i was trying to do in the first lab. I just added the network 129.168.0.0 to protocol rip in each router and it functions correctly. but it does not work in first lab.

If i added the directly connected routes it works, but  we also studied that if you add the original network (/16  here) it will also work.

Thank you,good luck with ccie