Understanding Virtual Private Networks (VPN)
VPNs are a common topic today. Just about everyone is talking about implementing one. This module explains what a VPN is and covers the basic VPN technology. We’ll also go through some examples of VPNs including a return on investment analysis.
VPN Examples
Let’s look at some real examples of VPNs. Health Care Company Intranet Deployment Here we have a health care company… Read More
The Intranet VPN
Intranet VPNs: Link corporate headquarters, remote offices, and branch offices over a shared infrastructure using dedicated connections. Businesses enjoy the… Read More
VPN Basic Components
An access VPN has two basic components: L2TP Network Server (LNS): A device such as a Cisco router located in the… Read More
Types of VPNs
Three Types of VPNs Let’s look now at the three types of VPNs. Access, Intranet, and Extranet VPNs As previously… Read More
IPSec VPN Client Operation
Now that you understand both IPSec and IKE, let’s look at what really happens from the client’s perspective. An IPSec… Read More
Tunneling: Generic Route Encapsulation(GRE)
GRE, or Generic Routing Encapsulation, is the standard solution for Service Providers that have an established IP network and want… Read More
VPN Technologies
Let’s take a look at some of the technologies that are integral to virtual private networks.VPN Technology Building Blocks Business-ready… Read More
Functions of VPN
The strain on today's corporate networks is greater than ever before. Network managers must continually find ways to connect geographically… Read More
What Are VPNs?
Simply defined, a VPN is an enterprise network deployed on a shared infrastructure employing the same security, management, and throughput… Read More