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CCSP Self-Study: CCSP SNRS Exam Certification Guide by Christian Abera Degu, Sara CCIE No. 5824 Nasseh,, Greg Bastien

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Chapter 19. Building a VPN Using IPsec

Prior to the development of virtual private networking (VPN) technology, the only way to secure communications between two locations was to purchase a “dedicated circuit.” To secure communications across an enterprise was tremendously expensive, and securing communications with remote users was cost-prohibitive. VPN technology enables you to secure communications that travel across the public infrastructure such as the Internet. VPN technology allows organizations to interconnect their different locations without having to purchase dedicated ...

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