Jump to content
TorGuard
skit

TAP Virtual Ethernet Adapter

Rate this topic

Recommended Posts

skit

What is the TAP Virtual Ethernet Adapter? Is it required to be selected during installation of TorGuard? What purpose does it serve? 

 

Share this post


Link to post
Share on other sites
Support
18 hours ago, skit said:

What is the TAP Virtual Ethernet Adapter? Is it required to be selected during installation of TorGuard? What purpose does it serve? 

 

 

To make a long story short, TUN stands for “network TUNnel” and TAP stands for “network tap.”

TUN is responsible for simulating a network layer device, specifically layer 3 out of the whole 7 network layers that comprise the OSI (Open Systems Intercommunication ) computer networking model.

Therefore, TUN works with layer 3 packets such as IP packets, for instance. If you’re not sure what layer 3 is all about, it essentially handles addressing, traffic control, and routing in a managed multi-node network.

TAP, on the other hand, is responsible for simulating a link layer device, which is basically a group of communication methods and protocols that run on a link a host is physically connected to. In the overall Internet Protocol Suite, a link layer is the lowest layer.

TAP generally works with layer 2 packets (essentially, the transmission of data frames between 2 nodes that are connected by a physical layer). A good example of a layer 2 packet would be Ethernet frames.

The easiest way to think of TUN/TAP is to remember that TUN handles routing, while TAP is used to establish a network bridge.

TUN/TAP is used in many applications, with OpenVPN being one of them. So, any VPN that relies on the OpenVPN protocol will require you to have a TUN/TAP driver installed on your device in order to be able to pass/receive packets to/from your operating system’s network stack.

Share this post


Link to post
Share on other sites
skit

Okay so is it required to be installed with TorGuard? The reason I am asking is because there is the option to install or NOT install it by checking the box appropriately. I don't know whether I need to install it or not. How do I make that determination? I know you said TAP is needed for OpenVPN, so I guess I need to know whether I need OpenVPN? Does TorGuard use OpenVPN or something else? What is the advantage of using OpenVPN versus using something else maybe?

Share this post


Link to post
Share on other sites
klepp0906

Yes its required.  you can uncheck it likely due to it not being "their" product and the option being available to install it manually on your own if thats your proclivity.

in short - torguard will not function without it. 

Share this post


Link to post
Share on other sites
balexter

Are there any conceived differences between the two versions shown to install? I usually go with the default option. Didn't see any difference when using the tap with the higher version.

Thoughts?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×