【My Study Note】Point-to-Point VPNs
Point-to-Point VPNs
A popular alternative to WAN technologies is point-to-point VPNs.
WAN technologies are great for when you need to transport large amounts of data across lots of sites because WAN technologies are built to be super fast.
A business cable or DSL line might be way cheaper but it just can’t handle the load required in some of these situations.
But over the last few years, companies have been moving more and more of their internal services into the cloud.
Let’s take the concept of email. In the past, a company would have to run their own email server if they wanted an email presence at all.
Today, you could just have a cloud hosting provider host your email server for you. You could even go a step further and use email as a service provider, then you wouldn’t have an email server at all anymore. You just have to pay another company to handle everything about your email service.
With these types of cloud solutions in place, lots of businesses no longer require extremely high-speed connections between their sites. This makes the expense of a WAN technology totally unnecessary.
Instead, companies can use point-to-point VPNs to make sure that there are different sites that can still communicate with each other. A point-to-point VPN also called a site-to-site VPN, establishes a VPN tunnel between two sites.
This operates a lot like the way that a traditional VPN setup lets individual users act as if they are on the network they’re connecting to. It’s just that the VPN tunneling logic is handled by network devices on either side so that users don’t all have to establish their own connections.