RDP Windows Server 2008 with single NIC
I would, first of all, suggest using 2 NIC cards and another 2 for redundancy on VMware server.
Yes, you can RDP to all servers at the same time as you would be connected to 'server1','server2' etc. Not IP address of the NIC/VMware server. RDP performance depends on your link’s bandwidth. 100Mbps is good to serve around 5+ sessions.
Each Virtual server will have its own IP address which you communicate to via a virtual connection between the virtual machine and the physical NIC.
For more detailed information on how it works, read Virtualization.
RDP Windows Server 2008 with single NIC
Hi there Gary Fisher,
Yes, you can continuously Remote Desktop Protocol Windows Server 2008 by a virtual machine even using a single Network Interface card. The default port for it is TCP port 3389. A common household DSL router which forwards this port, can do so to only one inside IP address, as you've discovered. It simply means that if only one port is the use, only the guest, or only the host, can have this remote access port published on your wanIP. I hope this helps you.