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Hello UUCICO, you know that I have the same problem as you. I'm starting to use opnsense as a gateway to use zenarmor, also installed on vm in proxmox, and I have the same problem with upload speed. If I deactivate the firewall I have 700/700 mb, if I activate it I have 700/0.1 mb. I have disabled the nat function because it is performed by another mikrotik router. I have also tried enabling nat, and the speed is 160/160 mb. Beyond that, I think the problem comes from the firewall side. In fact, I have noticed that opnsense also limits the download and upload bandwidth. With the fw disabled, I have 500/500 mb, and if I go through another router (as a gateway) I have 900/900 mb.
I have tried creating the rules you suggested but they have not worked for me. Could you give me a little more detail about the rules you created?
I would really appreciate it!
greetings
I have tried creating the rules you suggested but they have not worked for me. Could you give me a little more detail about the rules you created?
I would really appreciate it!
greetings
