What are Hyper-V default Firewall Rules

Tip explains default firewall rules used by Hyper-V.

The following Hyper-V Rules are created in the Windows firewall when you enable the Hyper-V Role:

• Hyper-V - WMI (Async-In) : Inbound rule for Hyper-V to allow asynchronous WMI traffic over TCP for any network ports.
• Hyper-V - WMI (DCOM-In):  Inbound rule for Hyper-V to allow WMI management using DCOM over TCP network port 135.
• Hyper-V - WMI (TCP-In): Inbound rule for Hyper-V to allow remote WMI traffic over TCP for any network ports.
• Hyper-V - WMI (TCP-Out): Outbound rule for Hyper-V to allow remote WMI traffic over TCP any network ports.
• Hyper-V (RPC): Inbound rule for Hyper-V to allow remote management using RPC/TCP. It uses Dynamic RPC.
• Hyper-V (RPC-EPMAP): Inbound rule for RPCSS service  to allow RPC/TCP traffic for Hyper-V.
• Hyper-V (REMOTE_DESKTOP_TCP_IN): Inbound rule for Hyper-V to allow remote connection to the virtual machines over Network port TCP 2179. VMMS.exe listens traffic over network port 2179.
• Hyper-V Management Clients - WMI (Async-In): Inbound rule for Hyper-V Clients to allow asynchronous WMI traffic            over any TCP network ports.
• Hyper-V Management Clients - WMI (DCOM-In): Inbound rule for Hyper-V Clients to allow WMI management via DCOM            over TCP 135.
• Hyper-V Management Clients - WMI (TCP-In): Inbound rule for Hyper-V Clients to allow remote WMI traffic over any TCP ports.
• Hyper-V Management Clients - WMI (TCP-Out): Outbound rule for Hyper-V Clients to allow remote WMI traffic over any TCP network ports.