Author: Rene Molenaar
IOS Firewall – CBAC
Scenario: As the network engineer for your company you are responsible for all network-related tasks. One day your security officer comes to you and asks is you can further enhance the network security. He wants you to implement…
Read More »NAT Dynamic Troubleshooting
Scenario: Working for a company based in the caribbean isn’t such a bad life. The sun is always shining and when there is no work you can relax at the beach. Today however you get a stress call…
Read More »NAT Static
Scenario: As one of the network engineers for a small company you are responsible for all network operations. One of the branch offices has a single host PC that needs access to a server located on the internet….
Read More »IPv6 OSPFv3
Just to keep you busy, I just added the first IPv6 lab for OSPFv3 to get you into the basics. If you feel like you can try to achieve the same goal but then with RIPng or EIGRP…
Read More »IPv6 OSPFv3
Scenario: After waking up from cryosleep the year appears to be 2020 and there is not a single IPv4 address left on the planet. The last thing you remember are the stories about the end of IPv4 and…
Read More »BGP IBGP Blackhole Routing
Scenario: You are applying for a new job at a Dutch networking company specialised in routing & switching solutions. One of the senior networking engineers decides to take you up the test and see what your skills are…
Read More »How to beat troubleshooting labs
The troubleshooting labs found on my website are a bit different from the ‘normal’ configuration labs, they will require different skills to solve them. If you have the feeling you have mastered a certain protocol you can try…
Read More »EIGRP Troubleshooting
Hi folks! I just uploaded a brand new EIGRP Troubleshooting lab which pretty much covers all the nasty things that can happen to EIGRP. It’s a preconfigured configuration with a bunch of routers and the goals are basically…
Read More »EIGRP Troubleshooting
Scenario: You are the senior network engineer for a global company and responsible for the routing of the network. You have worked very hard to improve the network, helpdesk calls have been brought back to a minimum and…
Read More »OSPF Network Types & New Labs
Hello all, I noticed from all your comments that some of the OSPF Network type configs are incorrect. I’ll try to fix these ASAP but i’m busy right now teaching…(I need to make a living as well 😉…
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