• Site-to-site VPN: A site-to-site VPN interconnects two sites, as an alternative
to a leased line, at a reduced cost. Figure 19-1 shows an example of a site to site VPN. • Client-to-site VPN: A client-to-site VPN (also known as a remote access VPN)
interconnects a remote user with a site, as an alternative to dial-up or ISDN connectivity,
at a reduced cost. Figure 19-2 shows an example of a client-to-site VPN. • With a full tunnel configuration you have all the end-user traffic
go through the VPN tunnel. • With a split tunnel configuration you don't have all the end-user
traffic go through the VPN tunnel. For example, you might choose to have just the traffic
that needs to access the corporate network sent through the VPN tunnel, while allowing
traffic destined for the Internet (perhaps Office 360 traffic) to bypass the tunnel.
Split tunneling is often an advantageous configuration because the bandwidth required
by the VPN connection (and the overhead associated with it) can be minimized. About The Author Anthony Sequeira, CCIE No. 15626, is a Cisco Certified Systems Instructor (CCSI) and author
regarding all levels and tracks of Cisco Certification. Anthony formally began his career in
the information technology industry in 1994 with IBM in Tampa, Florida. He quickly formed his
own computer consultancy, Computer Solutions, and then discovered his true passion-teaching
and writing about Microsoft and Cisco technologies. Anthony joined Mastering Computers in 1996
and lectured to massive audiences around the world about the latest in computer technologies.
Mastering Computers became the revolutionary online training company, KnowledgeNet, and Anthony
trained there for many years. Anthony is currently pursuing his second CCIE in the area of
Security and is a full-time instructor for the next-generation of KnowledgeNet, StormWind.com.
Anthony is also a VMware Certified Professional.
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Figure 19-1 Site-to-Site VPN
Figure 19-2 Client-to-Site VPN
• Clearly defined chapter learning objectives covering all N10-008 exam topics
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• IP addressing
• Network services
• Data center architectures and cloud concepts
• Routing, Ethernet switching, and wireless networking
• Network availability and disaster recovery
• Network security
• Remote access
• Network troubleshooting
• Transparent Bridging and MAC Address Filtering
• Cisco Switching Fundamentals
• Beginners Guide to Fiber Optic Bit Error Ratio (BER) Measurement
• How Do Fiber Optic Couplers Work and How are They Made?
• The Secret of Maintaining Your Fiber Optic Network
• ISP Multihoming Explained
• Here's a Quick Way to Build Your Fiber Optic Network
• Network Topologies
• Spanning Tree Protocol (STP) Operation
• Network Storage Server Options
