VPN and traffic filtering

[tim2525]

Is it possible to block unsolicited inbound packets that come from VPN tunnel? Why drivers (items) of some firewalls appear in TAP device (OpenVPN) interface and don't appear in L2TP, IKEv2, SSTP WAN miniport interfaces? Does it have impact on traffic filtering?

 

[gbb0330]

all traffic traveling through the VPN tunnel is encrypted, so filtering it would be difficult(impossible maybe ??).