I need to setup a virtual firewall to filter DHCP traffic, just DHCP traffic, on the same LAN.
I am connecting two offices with a wireless link, configuring the two offices with the same IP scheme and I need to block DHCP traffic between the two offices. The customer's network switches cannot block DHCP traffic without creating VLANS and I do not want VLANS.
I do not need routing (same IP scheme at both offices) I just need to block DHCP traffic. I only need the DHCP filter to be in place for 2 weeks so new hardware purchases are not approved. I have a Windows 2012 R2 server with a number of unused NIC cards that I can use a Hyper-v server.
Which free, or 30-day trial, virtual firewall should I use in a Windows 2012 R2 Hyper-v environment to only block DHCP traffic without routing?