VPN client-to-site settings for MacOS 15 (Sequoia)

MarkoD

Hi, I'm currently using these settings for a working VPN connection from Windows native clients:

Gateway:
- SA Lifetime: 86400
- Negotiation mode: Main
- Proposal (enc/auth): 3DES/SHA1
- Key Group: DH2

Connection:
- SA Lifetime: 3600
- Active Protocol: ESP
- Encapsulation: Transport (L2TP/IPSec) or Tunnel (IKEv2)
- Proposal (enc/auth): AES256/SHA1
- PFS: None

These settings have proven stable and widely supported in Windows' native VPN client and work for both L2TP/IPSec and IKEv2. I now have to connect a new Mac with macOS 15 (Sequoia) via VPN and I'm looking for a minimal change to the above settings in order for the native Mac client to successfully connect.

If anyone has the working settings for the newsest MacOS, please share. I cannot find the supported protocols for Sequoia anywhere online.

Thanks!

PS: I'd like to use the native client on the Mac (or a free alternative), not a paid VPN client.