Hello everyone,
I'm a beginner when it comes to networks and servers, so I decided to buy an old server and install Proxmox to improve, I got an HP ProLiant DL160 g6 to which I added an additional NIC, leaving me with a total of 4 ports. After configuring Proxmox I decided to install a Sophos VM to practice, and create a simple laboratory, I decided to dedicate one physical port to the Proxmox WebUI and another physical port for firewall management, just in case. The remaining ports would be LAN and WAN on the Sophos firewall. I connect the WAN port to my ISP's router and configure it as DHCP.
So far so good, I decided to create a VLAN on the FW LAN port to have access to the management interface from a VM and it works correctly after setting the correct policies. But I'm wondering how I can maintain access through the physical port dedicated to the Proxmox administration interface while enabling access to it from a VM. Also, by having my internet connection go through the FW, I can't reach the internet from a shell on the Proxmox node.
Maybe this seems like a silly question, but I can't access the Proxmox interface from a VM. I tried adding vmbr0 as a port in the FW. I'd appreciate some help on how to view the issue, while I'm going to sit down and review it. I hope the diagram is understandable


Thank you very much! Regards
I'm a beginner when it comes to networks and servers, so I decided to buy an old server and install Proxmox to improve, I got an HP ProLiant DL160 g6 to which I added an additional NIC, leaving me with a total of 4 ports. After configuring Proxmox I decided to install a Sophos VM to practice, and create a simple laboratory, I decided to dedicate one physical port to the Proxmox WebUI and another physical port for firewall management, just in case. The remaining ports would be LAN and WAN on the Sophos firewall. I connect the WAN port to my ISP's router and configure it as DHCP.
So far so good, I decided to create a VLAN on the FW LAN port to have access to the management interface from a VM and it works correctly after setting the correct policies. But I'm wondering how I can maintain access through the physical port dedicated to the Proxmox administration interface while enabling access to it from a VM. Also, by having my internet connection go through the FW, I can't reach the internet from a shell on the Proxmox node.
Maybe this seems like a silly question, but I can't access the Proxmox interface from a VM. I tried adding vmbr0 as a port in the FW. I'd appreciate some help on how to view the issue, while I'm going to sit down and review it. I hope the diagram is understandable


Thank you very much! Regards
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