Windows Essential Business Server 2008's Management Server Installation wizard

Choose the network adapter to use for communication

With the preliminaries out of the way, the wizard asks you to decide which network adapter you want the Management Server to use for network communications. As you see, my lab's virtual machine has a single network adapter from which to choose. If your server has multiple network adapters, all of them would be listed here. After you choose a network adapter, click the Next button. Once you do, the wizard queries the selected network adapter to gather information; then, you're moved to the next installation step.

For more details, read Scott Lowe's post about deploying the EBS Management Server.