Configure a Private LAN

DCD helps you connect the elements of your infrastructure and build a network to set up a functional virtual data center. Without a connected internet access element, your network is private.

The quickest way to connect elements is to drag them from the Palette directly onto elements that are already in the Workspace. The DCD will then show you whether and how the elements can be connected automatically.

1. In the DCD, go to Menu > Virtual Data Centers.

2. Select the data center to configure your elements within it.

Select a Virtual Data Center (VDC)

Note: Select Create new if you do not have data centers created. For more information, see Create a Data Center. Navigate to step 3, after creating a data center.

Create a Virtual Data Center (VDC)

3. Drag the elements from the Palette into the Workspace and connect them through their NICs.

4. In the Workspace, select the required VM; the Inspector pane will show its properties on the right.

5. From the Inspector pane, open the Network tab. Now you can access NIC properties.

6. Set NIC properties according to the following rules:

• MAC: During provisioning, you can specify a custom MAC address. If you do not provide one, a custom address will be automatically assigned. Ensure that any custom MAC address is unicast, adhering to the format xy:xx:xx:xx:xx:xx. Here, x represents any hexadecimal digit (0-9, a-f, A-F), and y must be precisely one of 0, 2, 4, 6, 8, A, C, E (or equivalently a, c, e) to conform with unicast addressing requirements.

• Primary IP: The primary IP address is automatically assigned by the IONOS DHCP server. You can, however, enter an IP address for manual assignment by selecting one of the reserved IPs from the drop-down menu. Private IP addresses according to RFC 1918 must be entered manually. The NIC has to be connected to the Internet.

• Failover: If you have an HA setup including a failover configuration on your VMs, you can create and manage IP failover groups that support your HA setup.

• Firewall: Configure a firewall.

• DHCP: It is often necessary to run a DHCP server in your virtual data center (e.g. PXE boot for fast rollout of VMs). If you use your own DHCP server, clear this check box so that your IPs are not reassigned by the IONOS DHCP server.

• Add IP: In order to use "floating" or virtual IPs, you can assign additional IPs to a NIC by selecting them from the drop-down list.

7. Provision your changes.

Note: The VDC will create a private network according to set properties.