Maybe, someone else is using Sonicwalls SMA (Secure Mobile Access / VPN) virtual apliance and migrating to Proxmox:
We recently moved from VMware to Proxmox. I decided to set up a new VM using Sonicwalls .qcow2 disk image. Used the same hardware parameters as for the old VMware VM.
Although all seemed to work at a first glance, VPN traffic was very slow. From the (misleading) warning about missing hardware features for newer SSL ciphers in the management interface, I first thought that it might be some CPU settings.
But it turned out that using vmxnet instead of VirtIO network device solved the issue. Seems related to hardware checksum offloading (no expert in the network area, but read about this in a similar post about another networking appliance).
(hope this is the right place to post and someone finds this useful...)
We recently moved from VMware to Proxmox. I decided to set up a new VM using Sonicwalls .qcow2 disk image. Used the same hardware parameters as for the old VMware VM.
Although all seemed to work at a first glance, VPN traffic was very slow. From the (misleading) warning about missing hardware features for newer SSL ciphers in the management interface, I first thought that it might be some CPU settings.
But it turned out that using vmxnet instead of VirtIO network device solved the issue. Seems related to hardware checksum offloading (no expert in the network area, but read about this in a similar post about another networking appliance).
(hope this is the right place to post and someone finds this useful...)