Spanning Tree BPDU Guard

Scenario:

For this lab you need REAL hardware. You can't use switches in GNS3!

You need at least Catalyst 2950 switches for this lab.

You are working as the network engineer at a school located in Germany. The network has been having issues last month after students took a CCNA class. You want to make sure the access layer of the network is more secure. When students try to mess with spanning-tree it should block the interface they are connected to.

Goal:

• Ensure all switches run PVST (default on most Cisco switches).
• Ensure that whenever you receive a BPDU from router Neo it will block the interface.
• After 400 seconds the interface should enable itself automatically again.

It took me 1000s of hours reading books and doing labs, making mistakes over and over again until I mastered all the switch protocols for CCNP.

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IOS:

Basic IOS for the switches should be sufficient. No special features needed.

Topology:

Video Solution:

You need to register to download the GNS3 Topology File. (Registration is Free!)