أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
I think the best way to filter a protocol in a network is Wireshark.
Wireshark is an amazing software that allows you to filter all the protocols in a network that you are connecting to . including SMTP,HTTP,And TCP
Hope that was helpful
Regards
