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CCDP ARCH Quick Reference by Michael Watkins, Kevin Wallace

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Chapter 9. Virtual Private Network Design

Virtual private networks (VPN), used both in public and private networks, allow traffic to be sent securely between two network devices. For example, consider a traveling salesperson who has broadband access in his hotel in the evening. With VPN technology, that salesperson can securely connect back to his corporate headquarters. Similarly, VPNs are often beneficial for telecommuters and remote offices.

In many cases, VPNs can replace previously installed WAN connections (for example, Frame Relay or ATM connections), offering security and lower cost. This chapter discusses the components that make up a VPN, and also covers VPN design considerations.

Remote-Access VPNs

Remote-access VPN tunnels typically ...

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