Tagged: Port Security

17 August 2026 Networking Security Port Security 802.1X Cisco Fortinet Juniper Arista

Five Minutes and an Empty Port Part 10: The Closing Checklist and a Vendor Comparison

Closing the series: a practical checklist pulling Parts 7 through 9 together, and a straight comparison of how Cisco, Fortinet, Juniper, and Arista actually implement each control.
17 August 2026 Networking Security Port Security First Hop Security Cisco Fortinet

Five Minutes and an Empty Port Part 7: Port Security and the Layer 2 Hygiene Most Networks Already Own

The defensive turn starts at the layer that would have stopped Part 6's persistent dropbox outright: port security, DHCP snooping, Dynamic ARP Inspection, and the rest of the Layer 2 hygiene most switches can already do without buying anything new.