Recent content by dnllmb

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    Proxmox & Opnsense VLAN Configuration

    The switch receives the packet on port 5 and it knows that it's coming from VLAN 10. And as it has VLAN 10 tagged on port 2, it then sends the packet out on port 2 with a VLAN 10 tag added to the packet. That's because firewall and Proxmox are connected to vmbr1 and incoming connections from...
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    [SOLVED] No Internet Connection for VMs if Firewall is Activated on VM NIC

    I have found something in the Proxmox documentation that helped me: Masquerading (NAT) with iptables. I haven't fully understood the iptables targets/chains/zones concepts yet, but after adding iptables -t raw -I PREROUTING -i fwbr+ -j CT --zone 1, it's working now and I can define rules in the...
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    [SOLVED] No Internet Connection for VMs if Firewall is Activated on VM NIC

    Hi all, I'm not able to get the firewall for single VMs working as desired. I would like to configure the firewalls for VMs to granularly restrict access to each VM. But as soon as I enable the firewall for VMs in the network device settings of the VM, I'm not able to connect to any services on...