VPN Encrypted Data

[Harley]

As some of you may know, I have a new broadband connection and I have been running tests on it and tweaking my XR1000.

On thing occurred to me though.

I have a VPN connection to a server. That connection may download considerable amounts of information. But the data is all encrypted and I have no idea whether the router even realises what the data is. I assume it knows it's not a game though.

My question is, does Congestion Control work in this situation where large amounts of data are thrown at the router from the internet when that data largely unrequested? I mean how can the router control that? Surely buffers in devices before the router will be filling up if the router is not allowing incoming data, which will have the effect of slowing down everything? Have put myself clearly? I mean how can the XR1000 control buffer bloat when it doesn't have access to the buffer. Or perhaps the router just throws the messages away? I am not sure what effect that has. Does the app go nuts requesting data?

 

 

[Netduma Fraser]

I believe it will work in just the same way, downloading/uploading both regardless can be tamed by QoS, your device either way will be requesting a download from the VPN server so it's nothing it can't work with.

[Harley]

Ah, you know I have worked it out and I sort of asked the wrong question. Funny thing was I answered the real question in my wrong question, lol. Let me explain....

I have one PC that does work stuff and operates over a VPN. The VPN software runs on the PC. I noticed though that one file transfer app has a tendency to hog the PC, and causes problems with conference links. But I have realised that the problem here is that ALL the data is being encrypted and going to the VPN so the router just sees the same type of messages all the time. It has no way it can slow down one type of message as opposed to another. So when Congestion Control steps in it just limits everything. There is no way it can do anything else. As it turns out the only way to control the file transfer is to limit it's bandwidth allocated to that one application. That is something that has to be done on the PC and not at the router.