How to Set up Extended ACLs on a Cisco L3 Switch | CCNA Security | Access Control List Configuration

👉 Standard ACLs can only block devices. Extended ACLs let you block specific traffic. In this video, I break down Extended Access Control Lists (ACLs) and show how to configure them step-by-step on a REAL Cisco Layer 3 switch using two VLANs and two PCs. If you’re studying for the CCNA or trying to understand real-world network security, extended ACLs are a must-know topic. I explain what extended ACLs are, how they work, where to place them (a big exam rule), and then walk through a simple lab where we block one specific service (like SSH) without breaking everything else. LinkedIn:   / paolomreyes   🧰 Networking Equipment I use : USB to RJ45 Console Cable: https://amzn.to/4qoWEWM USB-C to Ethernet Adapter: https://amzn.to/3YfFI9t USB to Ethernet Adapter: https://amzn.to/3YkOJOt 🎥 My YouTube Equipment: Camera - https://amzn.to/4skiv3r Mic - https://amzn.to/4jjIkgb Tripod - https://amzn.to/4spaA5e DISCLAIMER: The above links are Amazon affiliate links which provide a small commission to this channel from anything purchased via these links, thank you for the support! ⏱️ Timestamps: Intro - 00:00 What is an Extended ACL? - 01:13 Packet Tracer Topology - 02:16 Physical Cabling - 04:18 Configuring L3 Switch - 04:48 Testing Extended ACL - 10:10 Outro - 11:15 #ccna #cisco #computernetworking #ciscoswitch #ciscorouter #ciscotech #cisconetworking #networksecurity