Configuring Hyper-V on Windows 10 for pass-through DHCP
Solution 1:
A virtual switch acts exactly like a switch; if it's of the "external" type, it will be connected to a physical NIC on the host system, and it will use it as an uplink to the physical network.
You don't need to configure anything for DHCP to work; if it's available on the physical network, it will be available to any VM connected to this virtual switch.