Who We Are

NetConfig.io is a technical blog dedicated to enterprise network engineering. We publish in-depth configuration guides, troubleshooting walkthroughs, and practical tutorials covering the tools and technologies that real-world network engineers work with every day.

Whether you’re setting up your first FortiGate firewall, troubleshooting a BGP route leak, automating your network with Python and Ansible, or comparing SD-WAN solutions for an enterprise deployment — you’ll find clear, no-fluff guidance here.

Meet the Author

Bhardwaj Vishnu 

“Hi, I’m Vishnu — a Network Security Engineer with hands-on experience designing, deploying, and troubleshooting enterprise network infrastructure. I work day-to-day with FortiGate firewalls, Cisco Meraki environments, and Cisco routing and switching — which means everything on this site comes from real production experience, not theory.”

Why Trust This Site?

Every guide on NetConfig.io includes the specific firmware version it was tested on, real CLI output from actual devices, and step-by-step configurations you can follow without modification. I update articles when vendor software changes, and I personally respond to questions in the comments. No filler. No fluff. Just the commands that actually work.

What We Cover

Our content spans the full stack of enterprise networking across the industry’s leading vendors and technologies:

• FortiGate / Fortinet — Firewall policies, SSL-VPN, IPsec, HA, SD-WAN, ZTNA, REST API
• Cisco — IOS routing & switching, ASA/Firepower,  automation
• Palo Alto Networks — NGFW, Panorama, GlobalProtect, Prisma Cloud, ZTNA 2.0
• Cisco Meraki — Dashboard, MX, MR, MS, Auto VPN, SD-WAN, API automation
• Routing Protocols — BGP, OSPF, EIGRP, route redistribution, VRF, PBR
• Switching — VLANs, STP, EtherChannel, port security, 802.1X
• Network Automation — Python (Netmiko, Paramiko, NAPALM), Ansible, Terraform
• Security — Zero Trust, IPS/IDS, network segmentation, firewall hardening
• SD-WAN & High Availability — Multi-vendor SD-WAN, HA failover, redundancy design

Our Approach

Every article on NetConfig.io is written with one goal: to give you something you can actually use in a lab or production environment. We include real CLI commands, working configuration examples, and verification steps so you never have to guess whether something will work.

We don’t copy vendor documentation — we explain it, test it, and tell you what the docs don’t mention, including common gotchas, version differences, and troubleshooting tips from real deployments.

Independent & Unbiased

NetConfig.io is fully independent. We are not affiliated with, endorsed by, or sponsored by Cisco, Fortinet, Palo Alto Networks, Meraki, or any other vendor. Our content is driven by technical accuracy, not vendor relationships.

When we say one solution is better suited for a particular use case, it’s based on hands-on testing and real-world experience — not marketing agreements. See our Disclaimer for full details.

“Every guide on NetConfig.io exists because I once spent three hours searching for the exact answer it contains — and found nothing useful. I write the articles I wish existed when I needed them.”

Contact Us

Have a topic suggestion, found a technical error, or interested in contributing? Visit our Contact page — we read every message and update incorrect content within 48 hours.