Cisco

The Cisco category on howtokh.com is your go-to resource for mastering Cisco networking technologies, tools, and certifications. Whether you’re a beginner or an IT professional, this section offers practical guides to help you understand and work with Cisco systems. Start with Cisco basics, including routers, switches, and small network setups. Learn to configure Cisco devices with step-by-step tutorials covering VLANs, firewalls, and advanced routing protocols. Dive into Cisco network security, featuring tools like Firepower, ASA, and Umbrella, plus VPN and access control setups. Explore Cisco certifications, from CCNA to CCIE, with study resources and exam tips. For advanced users, our guides on SD-WAN, Cisco DNA, and network automation offer deeper insights into modern enterprise networking. Regularly updated with tutorials and tech trends, this category helps you gain hands-on skills, stay current with Cisco innovations, and grow your networking expertise.

Configuring sub-interfaces on a Cisco router in Packet Tracer facilitates communication between VLANs. It provides segmented networks within a single physical connection. In this guide, we’ll…