UMGC – Spring 2021 CMIT-455 CCNP ENCOR v8 Tutorial Packet Tracer 16.2.1: Configure GRE Tunnel
In this video tutorial we take a look at our first overlay technology: Generic Routing Encapsulation (GRE). We discuss the original GRE use cases, take a peek at the RFCs, and then configure a GRE tunnel between Site A and Site B. I go over the keepalive setting, the MTU setting, and why the command ‘tunnel mode gre ip’ is not a command needed if you are using IPv4 on hour point-to-point GRE tunnel. Enjoy!
***This video is an in-depth tutorial and is far more than simply an answer key to the aforementioned Packet Tracer activity. This tutorial is being made to assist my UMGC CMIT-455 learners in their journey through the ENCOR v8 material so, if you are just looking for a shortcut or easy answers for the activity, this is not the video you should watch. However, if you are looking to gain a deeper understanding on inter-VLAN routing configuration and designs, my hope is that this will increase your comprehension and help you to become a better and more effective network engineer. Enjoy!
*This techtorial/Packet Tracer activity is all done running Cisco Modeling Labs (CML) v2.1.1-b19, some physical routers in my Evil Command Center Lab and/or Packet Tracer version 7.3.1.0362 (for the Mac) which was just recently released! The MINIMUM version you can use for any of the new CCNAv8 curriculum activities is Packet Tracer v7.3.0! Be sure to leave your feedback and questions below and I hope I have earned the privilege of your time!
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