What is split tunnel VPN? Is split tunneling safe?
A VPN as we know it is made possible by creating a tunnel through which all network traffic flows. One of the main advantages is that anyone browsing this VPN will create encrypted point-to-point traffic from VPN client to VPN server, so your information will be protected in this VPN tunnel. Information outside the VPN tunnel prevents other people from reading the Belgium Email List information. However, is it really necessary for every kind of traffic to go through the VPN? It is not always. Therefore, we will talk about one of the alternatives that could optimize its effectiveness: split tunneling, or also known as split tunneling.It is good to remember that a VPN has many applications. Some of them are: access to region-restricted internet resources, private browsing, and why not, being more secure while online. But a VPN has one important detail. The quality of the connection (speed and delay) tends to decrease, mainly due to encryption algorithms applied.
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Therefore, the user perceives that access is slower than when outside the VPN. And that's part of the nature of VPNs, especially VPN clients that we can install on users' computers. By default, these clients have full traffic control.
What is split tunneling?
This is a feature of virtual private networks (VPNs) that allows you to configure the specific type of traffic you want to flow through the tunnel. A classic example is that all traffic originating directly from an organization's internal network goes through the VPN rather than Internet traffic in general, which is under the control of the ISP. In addition, it is possible to tailor VPN needs depending on the type of application or resource being used. For example, those who deal with very sensitive information, which goes through the VPN, others, who go to the Internet normally.
Another way to take advantage of split tunneling is to use VPN-related services to block specific traffic. A common example is not allowing access to a specific website and blocking is done via its IP address. In addition, there are other services that allow users to disable the VPN connection to access certain applications or resources.
It is possible to do this thanks to this feature of VPNs, creating what is called "Interesting Traffic"
to be conducted. The latter concerns all types of traffic we wish to monitor and/or protect. Why should these distinctions be made? This may be for security reasons or simply to optimize your available network resources.
Types of split tunnels
Inverse Split Tunnel: This performs a standard reverse tunneling process by allowing all generated traffic to pass through the default VPN tunnel. Users can use this method to be able to select the type of traffic that is outside of this tunnel.
IP-Based Routing : Remember that routing allows data packets to travel directly to the destination, of course, depending on that destination's IP Address . However, it is possible to use routing-based policies to implement a sort of split tunnel. These policies apply changes to the routing table, all based on considerations such as data packet size.
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