How to Secure Your Network with Port Security

View profile for Raj Nagar

Custom Software Engineering Specialist @ Accenture | Ex-HCLTech & Netlink | L2 NOC Engineer | CCNA | JNCIA | ITIL Certified | SD-WAN Expert | Former Team Lead – Verizon Business

Day 6- Port Security 🗝️ One simple misconfigured port can let an unauthorized device into your network. That’s where Port Security comes in: ✅ Limit the number of MAC addresses per port ✅ Define trusted devices using sticky MAC ✅ Choose violation actions → Protect / Restrict / Shutdown Real-world use case: • A user plugs in a mini switch under their desk → suddenly multiple devices start consuming IPs. With Port Security, that port gets shut down instantly. 🚫 🔑 It’s a lightweight but powerful defense at the edge. #Networking #Layer2 #PortSecurity #Cisco

Shantanu Srivastava

Specialist and deploying the services at Verizon Business on the behalf HCL Tech.

1mo

RAJ, Do you know IPS?

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