Cisco FTD and FMC

Currently Playing: Pre-filter policy for tunneled traffic

🚨 Cisco FTD users—are you really in control of your tunnel traffic? Most engineers overlook the default action in the prefilter policy: “Analyze all tunnel traffic”. But what does that actually mean for unencrypted GRE tunnels? 🎥 In my latest video, I break it down with real-world validation: 🔍 See how “Analyze” impacts unencrypted tunneled traffic—and why it matters for visibility and performance. 🚫 Learn how to bypass GRE tunnel traffic from Access Control Policy inspection using prefilter rules. If you're building secure, scalable networks—or teaching others how to—this is a must-watch. Let’s stop accepting defaults and start designing with intent. #ciscoftd #Snort3 #networksecurity #GREtunnels #OperationalRealism #cybersecurityeducation #PacketCaptureProof #securityengineering #linkedinlearning #shivamexplains