IPv6 and the Windows Firewall
When Microsoft took the opportunity to rewrite the networking protocol stack for Windows it also chose to build out a robust and very advanced firewall. Windows Firewall with Advanced Security (WFAS) has many capabilities that far exceed the industry standard in terms of programmatic controls and extensibility. One of the key differences is the ability to utilize PowerShell and Group Policy to control what happens in the firewall.
Microsoft also added IPv6 controls side by side with IPv4, allowing the firewall to perform functions for either network protocol. In addition, Microsoft enabled advanced management ...