203-Bad number of parameters (1 with min/max=2/2)

I received a couple of messages from people who had trouble loading some of the labs I built in GNS3, this is the error they reported: 203-Bad number of parameters (1 with min/max=2/2) Fortunately it’s easy to fix…
Read More »Time Based Access-List

Scenario: As the owner of a large swiss watch company you would like to make sure your employees are unable to browse the Internet during working hours. Time is money so it’s time to find a solution… Goal:…
Read More »Dynamic Access List – Lock and Key

Scenario: You are the senior network engineer at a company called “The Router Whisperer”. Your boss heard about a new feature to increase security for one of your customers who is a famous dog trainer. You need to…
Read More »Named Access-List

Scenario: After configuring standard and extended access-lists for the agents of three well-known agencies you were promoted to junior security operator. It’s now time to upgrade your skills and show them how to implement named access-lists. Goal: All…
Read More »Extended Access-List

Scenario: This morning you woke up in a cell feeling dizzy and nauseous, it appears you were kidnapped by a mixture of agents from federal agencies. Your task is to finish this security test, if you pass you…
Read More »Standard Access-List

Scenario: This morning you woke up in a cell feeling dizzy and nauseous, it appears you were kidnapped by a mixture of agents from federal agencies. Your task is to finish this security test, if you pass you…
Read More »Spanning Tree for CCNA

Scenario: You are the leading network engineer of an international reptile and insects museum. Recently the museum has been experiencing trouble with their switched network due to loops. Up to you to optimize the spanning tree configuration! Goal:…
Read More »Router on a stick

Scenario: You are Sam the network engineer who is responsible for all routing within your company. Two of your colleagues called John and Hadley are having trouble reaching each other, their routers do not have any routing capabilities…
Read More »VTP – Vlan Trunking Protocol

Scenario: For this lab you need REAL hardware. You can’t use switches in GNS3! You only need layer 2 switches for this lab. The Cisco Catalyst 2950 or higher will work. You are working as a trainee at…
Read More »Create vlans in GNS3 using the NM16-SW switch module

If you are going to try the NM16-SW switch module in GNS3 you might find that the vlan commands are a bit different than what you are used to on real switches. For this module you still need…
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