I’m working on a home lab setup where I have my Proxmox server on a separate VLAN from my main home network. The Proxmox box used to live on a different network and worked perfectly fine there, but I’ve since moved it into a segmented VLAN behind a Cisco router.
Now, I’m trying to access the Proxmox Web UI from my main home network (which is behind a UDM Pro), but I’m running into issues — I can ping the Proxmox server and trace routes work, but the Web UI port just doesn’t respond. I’ve made a bunch of changes, including removing NAT and confirming routing is in place, but the UI still doesn’t load unless I’m directly inside the Proxmox VLAN.
My goal is to access the Proxmox Web UI from other VLANs or subnets within my network without needing SNAT or jumping through extra hoops. Everything else seems to route fine, but the Web interface won’t load.
Looking for any insight or things I might be overlooking. I’ll share technical details if needed.
Now, I’m trying to access the Proxmox Web UI from my main home network (which is behind a UDM Pro), but I’m running into issues — I can ping the Proxmox server and trace routes work, but the Web UI port just doesn’t respond. I’ve made a bunch of changes, including removing NAT and confirming routing is in place, but the UI still doesn’t load unless I’m directly inside the Proxmox VLAN.
My goal is to access the Proxmox Web UI from other VLANs or subnets within my network without needing SNAT or jumping through extra hoops. Everything else seems to route fine, but the Web interface won’t load.
Looking for any insight or things I might be overlooking. I’ll share technical details if needed.
- Devices behind UDM Pro can ping and trace route to Proxmox at 10.10.10.10, but port 8006 times out.
- TCP SYNs reach Proxmox (confirmed via tcpdump), but Proxmox never replies.
- UDM Pro is not dropping the packets (checked iptables & logs).
- Firewall on Proxmox is disabled; iptables shows policies are ACCEPT.