NAC as DHCP server problem

Question

Hi guys,
i have problem use nac server as dhcp server at different subnet.
one thing that i want to know is dhcp in NAC server support unicast dhcp messages ? 
because when client use layer 2 connection to nac server, dhcp works fine. i think they use dhcp broadcast message.
thanks

Answer 1

Hi,
Ensure your internal network can ping the DHCP server, which in this case I think is your Hyper-V host. This probably requires that you configure an IP address on your Hyper-V host that matches the subnet you have configured on the DHCP scope.
When you add a virtual network to Hyper-V, this will add a virtual network adapter on the Hyper-V host. You can see the adapter in ipconfig with a name that matches the name of the virtual switch, for example: Ethernet adapter vEthernet (Internal Network).
I'm not sure what your goals are here. It sounds like you want to give the VMs access to the Internet, which can be done much more simply by just creating an External virtual network rather than an Internal one with NAT. 
Whatever your configuration, consider that DHCP works only one of two ways:
1. DHCP server exists on the same subnet as the scope subnet and shares one of these subnet IP addresses.
2. DHCP server has a different IP address than the scope, and clients use DHCP relay to get to the DHCP server.
If you don't have a DHCP relay, then you must use the first method.
-Greg