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.
Let’s look at some real examples of VPNs. Health Care Company Intranet Deployment Here we have a health care company that’s deploying an intranet. Well, why would they
Intranet VPNs: Link corporate headquarters, remote offices, and branch offices over a shared infrastructure using dedicated connections. Businesses enjoy the same policies as a private network, including security,
An access VPN has two basic components: L2TP Network Server (LNS): A device such as a Cisco router located in the customer premises. Remote dial users access the home
Three Types of VPNs Let’s look now at the three types of VPNs. Access, Intranet, and Extranet VPNs As previously stated, VPN is defined as customer connectivity deployed
Now that you understand both IPSec and IKE, let’s look at what really happens from the client’s perspective. An IPSec client is a software component that allows a
GRE, or Generic Routing Encapsulation, is the standard solution for Service Providers that have an established IP network and want to provide managed IP VPN services. One of
Let’s take a look at some of the technologies that are integral to virtual private networks. VPN Technology Building Blocks Business-ready VPNs rely on both security and QoS
The strain on today’s corporate networks is greater than ever before. Network managers must continually find ways to connect geographically dispersed work groups in an efficient, cost-effective manner.
Simply defined, a VPN is an enterprise network deployed on a shared infrastructure employing the same security, management, and throughput policies applied in a private network. A VPN