The importance of the VPN passthrough: does everyone need it?Posted on 25th February 2021
VPN is a popular phenomenon these days. It has become commonly used to meet the needs of online customers. You have probably tried it for different purposes. People are fond of the notion because it enables them to reach important services or share information so that more users can benefit from it. Thus, if you know what VPN is, you may wonder what a VPN passthrough is and what functions it has. In the article, we will thoroughly discuss the topic and give unswerving to your questions. So, if you want to know when it is necessary to use a VPN passthrough, how to imply it, and how one can benefit from it, let’s get started with reading.
VPN passthrough: what is it?
Let’s first say in brief to make it clear for the incompetent readers. In short, a VPN passthrough has the answer in its name. It is a specific feature that allows a special kind of data to get through the router. Why do you need to turn to a VPN passthrough?
Look at your router. If you are an experienced user, you must know what kind of protocol your VPN router relies on. If it is an OpenVPN protocol, you may omit the passthrough function. But if you still take advantage of outdated protocol versions, a passthrough is a must to ensure a high-quality connection. In other words, if you don’t enable a VPN passthrough with older protocol versions, the traffic won’t be able to reach your device.
VPN passthrough: how does it work?
If you are not an expert in all these technical things, you won’t be able to get to the details of the process at once. To figure out how the notion works, you need to understand the idea of the NAT.
Wait, but what is NAT?
Don’t get astonished with a new abbreviation. It is deciphered as Network Address Translation. So, what is it, and why do we need to know more about NAT before working with a VPN passthrough?
It is already present in your router. You don’t even need to check. The feature has been established by default. And it is something that prevents your router from establishing outdated protocols, such as PPTP/L2TP. If you can’t get if NAT is a good or bad feature, we will answer your question. To be true, it has more positive qualities.
NAT is the protection of the content you receive daily. It is a so-called filter that hampers all the bad things that appear on the Internet. These could be various hacker attacks or viruses that you don’t need when surfing the web. Moreover, NAT allows different devices to obtain the same IP address and have a valid internet connection. But the devices have to be connected to a specific Internet source.
But why can’t we use NAT with the old protocols? These protocols simply fail to provide enough data to make the NAt work correctly. The information about the signals and traffic is either presented in the incorrect format or can’t be presented at all. Thus, the router fails to set the VPN connection because of the use of outdated protocols.
Reasons to think about the VPN passthrough
So, we have discussed the notion and the specific aspects when working with it. Now it is time to talk about the possible cases when you are supposed to establish this feature. There are a few of them because, in most cases, you can easily live without this feature. If you want to ask why, here are the answers:
- If you are working with a modern router, you can forget about the VPN passthrough. Nowadays, the developers make sure that every router has an appropriate set of features to avoid additional VPN passthrough settings. It is pre-installed for the good and convenience of the users. So, you may need a VPN passthrough only if you are working with an old version of a router.
- If you deal with good-quality VPN providers, they should give you access to benefit from the advanced versions of the protocols. When choosing the VPN provider, make sure to opt for the one offering beneficial services for the customers. If you do so, you may forget about the VPN passthrough. But make sure to take care of your VPN connection if you use free versions. You will have to pay attention to the work of the protocols and manage it on your own.
- Let’s say it one more time: you have to use a VPN passthrough when working with the outdated protocols. If you want a smooth internet connection and don’t get bothered by the technical issues, using a passthrough with old protocols is a must.
- If you make use of the old operating systems, you also need help from a VPN passthrough. Why does it happen so? The answer is clear. With the old operating system, you most likely deal with outdated protocols. It takes us back to the previous point of the list.
Now you may ask quite an appropriate question: what is the difference between the router and the passthrough feature? Users often misunderstand the notion and combine these two different aspects. But it is a mistake. Let’s start with a passthrough. It is more like the software enabling the router to work smoothly. Router, on the other hand, has already got a VPN software by default. First, the signal gets through the router, and then it is transferred to the server.
Let’s wrap it up
Now you know what a VPN passthrough is and understand the specific cases when it is important to use the setting. It is important to establish a passthrough feature when working with older protocol versions. Earlier, users didn’t have another option. But these days, the standards are higher, so you don’t need to necessarily establish a VPN passthrough. Moreover, there are providers to offer this feature for free.