Hi, I am trying since a few days to setup iptables on my proxmox installation. Since I have only one public IP address and I need pfSense installed I created a bridge between only the proxmox host and the pfSense guest. My network cards are the following: eno1 - Public IP address (XXX.XXX.XXX.XXX/24 with his gateway) vmbr0 - Bridge for the eno1 card vmbr1 - Bridged to a dummy card with IP 192.168.1.254/24 vmbr2 - Bridged to another dummy card with IP 172.16.0.0/16 The vmbr1 is used as the WAN for pfSense, and the vmbr2 as the LAN for all the VMs. This is the configuration of my pfSense box: WAN IP 192.168.1.1/24 gateway 192.168.1.254 LAN IP 172.16.255.254 and also configured to be the gateway for his lan I've tried this on my proxmox host machine: Code: iptables -t nat -A POSTROUTING -o eno1 -j MASQUERADE iptables -A FORWARD -i vmbr1 -o eno1 -j ACCEPT iptables -A FORWARD -i vmbr1 -o eno1 -m state --state RELATED,ESTABLISHED -j ACCEPT And also replacing the eno1 with vmbr0 but it doesn't works. I could solve having a 2nd public IP for my pfSense box, but I can't buy it. How can I solve this issue?