SPAN/Mirror Port Confusion

utc

New Member
Apr 15, 2025
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Hello,

I am working a security home lab primarily using VMs. I am trying to create a mirror port to a physical NIC and not getting the results. Ultimately, I'm trying to mirror traffic from the VMs to the pfsense VM (providing DHCP) AND any traffic going out via WAN to the NIC2 attached to vmbr2.

ovs-vsctl -- --id=@p get port enp87s0 \
-- --id=@m create Mirror name=mirror_vmbr1 select-all=true output-port=@p \
-- set Bridge vmbr1 mirrors=@m

proxmox.jpg

I've used the resource below amongst other websites as well.
https://backreference.org/2014/06/17/port-mirroring-with-linux-bridges/