Proxmox Tutorial: Setting Up the Firewall and Software-Defined Networking (SDN)

[@str33tb1k3r]

How would you forward traffic from the proxmox host IP to a specific vm via the SDN?

[@itstechtime1]

To forward traffic from the Proxmox host to a VM via SDN: Enable IP forwarding on the host (net.ipv4.ip_forward=1 in /etc/sysctl.conf). Set up NAT or port forwarding using iptables or nftables. For example: Using iptables: iptables -t nat -A PREROUTING -p tcp --dport -j DNAT --to-destination : iptables -t nat -A POSTROUTING -p tcp -d --dport -j MASQUERADE Or use equivalent nftables rules. Check VM firewall rules to allow incoming traffic. Let me know if you need more details or if you would a more in-depth video.

[@str33tb1k3r]

@itstechtime1 Thank you for the reply, sir! I’m honestly surprised they haven’t implemented a port forwarding feature in the GUI, especially since the rollout of SDN. While I’ve come across a few resources on masquerading, a clear and detailed video tutorial on the topic is either hard to find or doesn’t exist. I’ve noticed many people experimenting with running Proxmox on VPS providers but struggling to manage networking for multiple VMs effectively.

[@eelrepus]

You should zoom in your video not just go through for difficult read....

[@itstechtime1]

Thanks for the feedback! I'll make sure to zoom in more on future videos.