Accessing Proxmox in a different subnet is possible with Proxmox bridges. Bobcares, as a part of our Proxmox Support Services offers solutions to every query that comes our way.

Accessing Proxmox In Different Subnets

Proxmox Virtual Environment is an open-source software server that offers server virtualization management to maximize efficiency and effectiveness at a low cost.

Today, we will see the steps to access Proxmox in a different subnet.

Method 1

1. Firstly, for each subnet, create two new Proxmox bridges. Although it is not necessary, we can add one address from each subnet to the Proxmox bridge.
2. Then make a new virtual machine to handle the subnet routing. There are several options available, including pfSense. Interfaces to the two Proxmox bridges built in step 1 are required for this VM. Add all interfaces to this virtual machine to add more subnets.
3. Now make pfSense routing available.
4. Lastly, create static routes to these subnets with pfSense acting as the next hop in the routing device if we wish to access these VMs from the host network.

Method 2

Using VLANs as they will always be on the same subnet/segment as the host unless we use VLANs. We have to create a new interface on the host with a vlan tag and assign the VMs to use that virtual interface. If its Linux, we should use the below code to add an interface eth0.5 with vlan tag 5:

vconfig add eth0 5

Method 3

An IP on a bridge is only necessary if the host can reach this address. If we employ a phrase like this:

auto vmname
iface vmname inet manual
bridge_ports none
bridge_stp off
bridge_fd 0

The default router also allows users on the 192.168.17.0/24 network to connect to the host.

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Conclusion

To conclude, our Support team provides the details of accessing Proxmox in different subnets. They also provide three different methods to access the Proxmox in different subnets.