Add Network NAT for Hyper-V VM

new-net-nat.ps1

# list all VMSwitches
Get-VMSwitch

# for each VMSwitch, do the following:
Remove-VMSwitch <VM_SWITCH_NAME>

# list all NetNATs
Get-NetNAT

# for each NetNAT, do the following:
Remove-NetNAT <NETNAT_NAME>

# create a VMSwitch for our NAT
New-VMSwitch -SwitchName "NATSwitch" -SwitchType Internal

# configure NAT switch to be the gateway for your hardware
# Make sure to use an address range that does not conflict with your internal network schema. 
# For example, if the address on your internal network  use 192.x.x.x, you should use 10.x.x.x
# when setting up the NAT network. If both 192.x.x.x and 10.x.x.x are in use, you can use 172.x.x.x,
# or essentially any other address range that will not cause conflicts
New-NetIPAddress -IPAddress 192.168.1.1 -PrefixLength 24 -InterfaceAlias "vEthernet (NATSwitch)"

# configure NAT network
# We can specify the prefix as '24' to allocate 256 (x.x.x.0 to x.x.x.255) addresses in our NAT
New-NetNAT -Name "NATNetwork" -InternalIPInterfaceAddressPrefix 192.168.1.0/24