Hi all!
Scenario: We have 2 site-to-site VPN connection between HQ and the DC. 1 VPN connection for the new environment and 1 connection for the old one. This setup is made for migrating the infrastructure from old LAN behind old firewall (Fortigate) to new LAN behind new firewall cluster (OPNsense). The new VPN connection is setup with OpenVPN and the other old one is setup with IPSec (IKEv2).
Problem: File transfer (SMB) over the IPSec connection is always 4 times faster than over the OpenVPN connection.
Question: Is it known that SMB is by definition slower about an OpenVPN than an IPSec? Is there a best practice regarding encryption configuration for the OpenVPN connection? Is this different per CPU type / model?
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