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GRE Tunnel Theory and Configuration: CCNP Routing and Switching ROUTE 300-101

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This lesson, excerpted from CCNP Routing and Switching ROUTE 300-101 Complete Video Course, discusses the theory behind a Generic Routing Encapsulation (GRE) tunnel and describes how a GRE tunnel can be combined with an IPsec tunnel to add security. it concludes by configuring and verifying a GRE tunnel.
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About the author: Kevin Wallace

With Cisco experience dating back to 1989, Kevin (CCIEx2 (Voice and R/S) #7945, CCSI #20061) has been a network design specialist for the Walt Disney World Resort, a Senior Technical Instructor for SkillSoft, and a network manager for Eastern Kentucky University. Kevin holds a bachelor’s of science degree in electrical engineering (focusing on digital communications) from the University of Kentucky, and has authored or co-authored multiple books for Cisco Press.

See more books, videos, and articles by Kevin Wallace.

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