Split Tunneling can be defined as, “the process of allowing a remote VPN user to access a public network, most commonly the Internet, at the same time that the user is allowed to access resources on the VPN. This method of network access enables the user to access remote devices, such as a networked printer, at the same time as accessing the public network” (Split Tunneling, p.1). A benefit of using split tunneling is that it assuages bottlenecks and preserves bandwidth as it is not necessary for the Internet traffic to pass through the VPN server. A shortcoming of this technique is that it fundamentally makes the VPN exposed to attack as it is reachable through the public, non-secure network. And, “when split tunneling is enabled, users bypass gateway level security that might be in place within the company infrastructure. For example, if web or content filtering is in place, this is something usually controlled at a gateway level, not the client PC” (Split Tunneling: Disadvantages, p.1).
In the light of the above discussion we can hereby culminate that VPN or a Virtual Private Network is a data network which uses public telecommuncations infrastructures and has a number of advantages. IPsec is a new technology which helps protect data and Split Tunneling on the other hand is a process that allows users to connect to the internet while remaining on the VPN.
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