Proxmox VM With Opnsense Speed issues

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Yaya48

New Member
Apr 2, 2023
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Hi, i've installed opnsense on my proxmox and used 2 LINUX bridge port which is assigned on my X550-T2, the issues is that the LAN port is set to use 1G due to being plugged on my 1GB switch while my WAN gives me 2.5G how can i use the 2.5G in my VMs. Because using the LAN bridge only gives me 1G and ethtool report the speed link to be 1G.
 
Yaya48 said:
Hi, i've installed opnsense on my proxmox and used 2 LINUX bridge port which is assigned on my X550-T2, the issues is that the LAN port is set to use 1G due to being plugged on my 1GB switch while my WAN gives me 2.5G how can i use the 2.5G in my VMs. Because using the LAN bridge only gives me 1G and ethtool report the speed link to be 1G.
Click to expand...
PCI passthrough?
 
do you have multiple machines that using wan interface? If so, pci pass through is not an option.
 
cdn123 said:
do you have multiple machines that using wan interface? If so, pci pass through is not an option.
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I worded my issues wrongly, basically I have 2 bridge one for lan other for wan both or them are passed into opnsense vm. Wan is 2.5G but I can’t get more than 1G on other VM using LAN bridge
 
chrcoluk said:
Looks like this is the solution.

https://www.reddit.com/r/Proxmox/co...he_virtio_network_device_to_a_faster/g79qoa0/

So the fix is to apparently not attach any physical nic's to the bridge, then it wont be capped to interface speed.
Click to expand...
I’ve tried this unfortunately, I’ve made another bridge with no physical nic to it and added it to the opnsense VM and another VM didn’t go past the 1G speed

I tested with iperf between my opnsense and my Linux vm and I go like 2.5G
 
Last edited:
After some testing, using LAN port physically and connecting it to a laptop with 2.5G adapter it doesn't give me more than 1G to, altough connecting the WAN Bridge to another VM i get full 2.5G, so it's an opnsense configuration/optimization issues
 
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