Networking June 22, 2026
Cisco Router Hardening: A Baseline for Maximum Performance & Security
A hands-on baseline for taking a Cisco IOS router from box-fresh to production-ready — secure access, sane interfaces, routing, and the hardening steps most people skip.
Networking April 25, 2026
Cisco IOS Lab: EIGRP Route Summarization for Scalable Networks
Big routing tables are slow to converge and easy to break. In this Cisco IOS lab I use EIGRP manual summarization to collapse a sprawl of subnets into a single advertised route — shrinking the table, speeding convergence, and containing query scope, with the exact config and the show output that proves it.