Thanks for the great tutorial. I've got a MTU-question, because I'm running OPNsense as a VM with Proxmox:
My Modem "Draytek Vigor" is set to MTU 1492 (ISP: German 1&1 DSL). Proxmox WAN-Port is connected via VirtIO-Bridge to OPNsense-VTNet_WAN. OPNsense establishes the connection via PPPoE and assigns VLAN 7. My MTU-configuration under OPNsense is exactly the way you described it.
Do I also have to change the MTU from 1500 to 1512 for the WAN-Bridge and network-card under Proxmox?
My Modem "Draytek Vigor" is set to MTU 1492 (ISP: German 1&1 DSL). Proxmox WAN-Port is connected via VirtIO-Bridge to OPNsense-VTNet_WAN. OPNsense establishes the connection via PPPoE and assigns VLAN 7. My MTU-configuration under OPNsense is exactly the way you described it.
Do I also have to change the MTU from 1500 to 1512 for the WAN-Bridge and network-card under Proxmox?