853 WFP Built-in Teredo ALE Resource Assignment v6 Layer Callout
855 WFP Built-in Teredo ALE Listen v6 Layer Callout
901 WFP Built-in IKE Exemption Filter
1001 Base Filtering Engine
1002 The Base Filtering Engine (BFE) is a service that manages firewall and Internet Protocol security (IPsec) policies and implements user mode filtering. Stopping or disabling the BFE service will significantly reduce the security of the system. It will also result in unpredictable behavior in IPsec management and firewall applications.