CCNA 3 Skill-based

I rebuild the network model (not the exact) using Packet Tracer  we actually designed and implemented last October 24, 2010 during our Cisco Final Skill-based Assessment in which we are required to design a network with 2 domains (LAB1 and LAB2) where each domain contains different VLANS. We should also implement router-on-a-stick to make the VLANS communicate with each other. Plus some hosts must be able to connect to the Cisco Server and access the Cisco curriculum, while some will be refused connectivity from the wireless routers using Mac Address Filtering.

The one biggest mistake we did was to configure the trunk interface of the switch connected to the router  (R1) with a Native VLAN with the command:

S2(config-if)#switchport trunk native vlan 88

Thus, the switch cannot be pinged by any other device except the router it is directly connected with. That issue took us 4 hours to troubleshoot, (6 hours of completing the whole activity + 4 hours of troubleshooting = 10 hours!). So the solution we made is simply remove the Native VLAN configuration of the switch.

S2(config-if)#no switchport trunk native vlan 88

PT file and Addressing Table:
Download

Note: 01/29/12
It is wrong for me to say that it was a mistake to configure the Native VLAN on S2's trunk. The real mistake was a missing configuration on R1 which I addressed on a later post here.