OPNsense Proxmox Speed Issues

[Yaya48]

Hello, I'm looking for help regarding stability/speed problems on opnsense. I have a rather simple setup, I have a Proxmox ( quite powerful Ryzen 9 5950X, 64GB ram ) which has a 10G X550-T2 card from intel, in short I installed OPNsense on it using VirtIO drivers ( so I made 2 bridges on linux WAN, LAN associated to the physical ports of the card ) given that the Freebox POP (French ISP) has a 2,5GB/S port I plugged on it and I forced on proxmox the port in 2.5GB/S. I switched my router to bridge mode and installed opnsense. But I've got some problems, I'm not getting more than 890MBPS by doing a speedtest directly on the firewall. (I've included screenshots to back this up). Of course, I tested on a Linux VM, installed debian, assigned the WAN bridge and did a speedtest, reaching 2.2, 2.3GB/S each time. On top of that the TV Player makes a lot of random errors due to some weird network stabilities, thanks in advance for the help.

[EricPerl]

I'm getting bogus results on my virtualized OPN, while a machine connected to the OPN in question is getting expected results (30x ratio difference).

[Yaya48]

Well i mean i get the same result into the others VMs and on my Physical Computer

[EricPerl]

I already uninstalled that plugin. I don't need tools that give me bogus data.
Ran in that context, it only touched the WAN side of OPN and one bridge in Proxmox.

Ran from the PC I tested with, I added the PC NIC, 2 switches, one Proxmox bridge and the LAN side of OPN, yet got 30x the throughput...
That test matched what I paid for.
I can only conclude the OPN speedtest is acting up (at least when virtualized or specifically on my install).
I'm not really interested in troubleshooting that. Sorry.

If devices connected to OPN on the LAN side are showing expected results, you're troubleshooting the tool.

[Yaya48]

But it's not though ?, i should have way more bandwith even with real world usage, especially in VMs since its bridged directly to OPN. Using 10GB/S Hosting Server, i've tried to download 25G file i can't go higer than 500MB/S while being directly plugged to the ROUTER in BRIDGE mode i get over 1200-1700 MB/S i don't think this is normal behaviour

[Yaya48]

Ok, well i've finally found the culpit my ISP rely havely on IPV6 and it was not configured which is why i had all those issues



Latency & speed are fixed after deploying ipv6 correctly

[JeGr]

Also keep in mind, that even when you have a hosted VM somewhere that is promised to be connected via 10Gbps, it's not the guaranteed bandwidth! We had the same assumption of a customer that ran several VPN tunnels to a VM that was connected via 10G apparently but the hoster never got above 2G in peaks and often performed way below even 500Mbps (and also had various DDOS'es against its infrastructure). So sometimes it's just important to remember, that not everything is a bug in either the software or the virtualization :)

Cheers