Hi everybody!
I'm trying to block an incoming DHCP OFFER from a particular server in this way:
1. Inbound connections - Allow, Outbound connections - Allow (Both in "Windows Firewall with Advanced Security"->"Properties"
2. Turn off Any Rules in Inbound/Outbound connections.
3. For test reason create an Inbound Blocking Rule which blocks all UDP ports from any IP.
4. Run "ipconfig /release" and then "ipconfig /renew"
And my server responds to the OFFER! Can anyone explain me why? It looks like Windows Firewall Create Dynamic Rules sometimes!