Which Virtual Private Network (VPN) you need depends upon how you will use it and how much security, performance and failover capabilities you need. The differences in the protocols and blends of VPN are not varied but there are drawbacks to the hardest and the easiest protocols. If you are trying to communicate between sites, have vendors or employees who are out in the field, or need a safe way to connect to a cloud service your VPN must connect and be as secure and as agile as you need.
What are the basic protocols for Virtual Private Networks?
There are seven protocol types or variants of types that can be used for in a virtual private network. These protocols range from simple point to point communications to variants or blends of protocols. To give you a better idea of what you will need here are each of the protocols and how they are used:
Where can you use a Virtual Private Network?
There are many uses for a VPN in your business. Here are some ways you could and shouldn’t use a VPN with:
Connecting two sites, a server to a remote site, or a single remote user to a site. These kinds of connections are the mainstay of the VPN. When security is needed an encryption with the desired key length, sharing of security certificates, or shared secret is all you may need.
When you need to connect a site or user securely to a cloud based service you might want to consider using a VPN that uses IPSec or SSTP because of the larger encryption key and to restrict connections to specific ports.
Streaming video from one location to another may be what you want to do but if you select using a protocol that uses encryption you might be setting yourself up with a slow and useless connection. Using a protocol like PPTP is what you want when streaming video from one point to another but when you add in an overhead like encryption you will slow down the connection at both ends.
The right protocol for your business or application will be determined by the restrictions on how secure the data needs to be between endpoints and where you want the connection to be made (at the router, or at the server and client.) Once you have those two items determined you will be able to find the right protocol.
Cahit Akin, CEO, Mushroom Networks, Inc.
Mushroom Networks is the provider of SD-WAN (Software Defined WAN) and NFV solutions capable of Broadband Bonding that enables self-healing WAN networks that route around network problems such as latency, jitter and packet loss.
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