Proxmox + OPNsense - asymetic routing issue / tuorial

[eugenmayer]

Postend an updated version on stack: https://stackoverflow.com/questions/44118442/proxmox-with-opnsense-as-firewall-gw-routing-issue since the tools there are better to work out such an issue.

Since FreeBSD got a lot better on KVM (virtio anything), i created a setup in a datacenter:

• Proxmox Server with 1 NIC(eth0)
• 3 Public 1IPs, IP2/3 are routed by MAC in the datacenter (to eth0)
• KVM bridged setup ( eth0 no ip, vmbr1 bridged to eth0 with IP1 )
• A private network on vmbr30, 10.1.7.0/24
• A shorwall on the proxmox server

see https://stackoverflow.com/questions/44118442/proxmox-with-opnsense-as-firewall-gw-routing-issue for a brief description

When i got this straighten out i would love to place a comprehensive guide on how to run OPNsense as a Appliance with a private network in on Proxmox, passing some services to the outer world using HAproxe+LE and also accessing the private lan using IPsec