Author: Rene Molenaar

René - CCIE #41726 is the creator of GNS3Vault.com where he shares CCNA, CCNP and CCIE R&S labs. He also blogs about networking on http://networklessons.com

Trivia – PPP and Mismatched IP still working

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Here’s a funny question for you to think about, take a look at the following picture:     The link above is a PPP connection and as you can see we have a mismatch in IP addresses. If…

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Tell me what to create for you this week

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As a freelancer work is normally everything or nothing. What I mean by this is that one week you are very busy and the other week you have time for self-study, working on the website, small time-jobs or…

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100+ Routers in GNS3

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Hi folks, After my youtube video with 40 routers I read some posts on Twitter from @Centronix , @Addizins and @mss7082 about someone who did 45 routers on a Windows machine. I got curious about what the actual…

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Terminal tabs in Linux / Ubuntu

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I’ve been messing around before with Gnome Terminal but was unable to make GNS3 automatically open all router telnet sessions in a single window and multiple tabs. There are some solutions when you google for it but it…

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Switching Lab for CCNP Switch

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Unfortunately it’s not possible to run switches in GNS3 or Dynamips but if you want to pass the CCNP SWITCH you will need the practical experience to beat the exam. I just uploaded a huge lab that I…

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CCNP Switch Lab

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Scenario: For this lab you need REAL hardware. You can’t use switches in GNS3! Minimum Equipment needed: (Or use rack rentals…) Core Switches: Cisco 3560 or Cisco 3550 (3550 can’t do Private Vlan) Distribution Switches: Cisco 3560 or…

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Think you know OSPF? Start troubleshooting!

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Hi all! Finally here it is…the OSPF troubleshooting lab! If you are are preparing for CCNP and have the feeling you have a good idea how OSPF works you should check this one out. I tried to add…

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OSPF Troubleshooting

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Scenario: After months of hard work, studying and doing labs you have the feeling you truly know how routing protocols work. Your boss decides to upgrade your salary and your title from Trainee to Junior network engineer and…

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EIGRP Labs

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Hi Folks! Today i’ve been uploading some of the EIGRP (Enhanced Interior Gateway Routing Protocol pffew) labs that I didn’t convert from my notes/paper/notepad to some nice GNS3 labs. I believe these will be helpful to you when…

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EIGRP Stub Leak Map

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Scenario: You are enjoying life as a lifeguard and parttime network administrator. Just like real life your routers cry out for help by sending queries whenever they have lost a certain network. You decide to implement EIGRP Stub…

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