OpenVPN slow transfer speeds

Hallo,

Just to confirm - you have an SG 125 at your workplace and you are connecting from your home to the SSL VPN server in the UTM - correct?

Is it uploads from you PC to a server in the office that are slow, transfers in the other direction or both?  How are you transferring the files - RDP?  FTP? or ???

The SG 125 doesn't have a very powerful processor, so I would use AES-128-CBC with 1024 bit and I would disable traffic compression.  How much improvement did that get you?

Cheers - Bob

We have SG125 at work, and I have custom built UTM at home.

I tried both remote vpn and s2s, with same results.

The problem mostly manifests when working with smaller files, trying to copy a bunch of smaller files or open a single smaller file. It just takes a lot of time per file. If I zip it and transfer, to start transferring it takes a while,  it after that I get decent speeds.

I am using SMB, which I know has quite a lot of overhead. I’ll try setting up a FTP connection to test if it works better. And I’ll try lowering the encryption.

I just wanted to follow up. Lowering the encryption didn't do anything. The performance with small files over SMB is still miserable.

But as I really almost never need to copy bunch of smaller files (and I can zip them first), and usually only transfer larger files, I guess I can live with that.

Are you using UDP or TCP? If you're using tcp then try change it to udp. There's no reason to encapsulate tcp in tcp

You are right, makes no sense - changed to UDP. I think it might be a tad faster, but not really a wonder (still way faster to zip and transfer). I'll leave it at UDP for now. Thank you.

You are right, makes no sense - changed to UDP. I think it might be a tad faster, but not really a wonder (still way faster to zip and transfer). I'll leave it at UDP for now. Thank you.