CONFIG by Network Kings
Configure real-feeling routers, switches and firewalls on NK-OS, watch every packet on the wire, and prove it with live task checks. CCNA, CCNP, Juniper, Fortinet and Palo Alto tracks — nothing to install.
Free Starter plan · first module of every path + 3 labs · no credit card
At the console
Think through the network. Then make it work.
Build a branch network, configure its devices and follow the traffic. Use the console and packet capture together to understand why a connection works, or why it fails.
Configure the devices
Work with interfaces, VLANs, routes and firewall policies.
Inspect the packets
Read the headers and prove what happens on the wire.
Choose your track
Every module has reading, console labs, a quiz and scenario questions in English and Hinglish.
Hands-on network labs in your browser
Every lab runs in your browser — no installs, no GNS3, no packet tracer. Type IOS commands, watch the wire, get checked.
See inside every packet
A Wireshark-style capture of real frames: Ethernet, ARP, IPv4, ICMP, TCP, UDP, DNS, DHCP and OSPF. Click any field to see its bits, its bytes and what it does.
Packet StudioHow a lab works
Configure
Type IOS-style commands on NK-OS routers. ? help, Tab completion and short forms work.
Watch the wire
Links turn green when OSPF goes FULL. Capture any link and read the packets.
Get checked
Tasks tick themselves when the network really works, not when you type a keyword.
Pick your plan, start practising today
Start monthly or save with 6 months and 1 year. No auto-renewal — pay once, practise for the full term.
STARTER
Free forever — try before you buy
- First module of every track
- 3 hands-on console labs
- Practice quizzes (up to 10 questions)
- Build your own lab: 3 days a month, up to 4 devices
- 3 Real Experience tickets
CONFIG ESSENTIAL
Labs, reading and exams for every core track, plus the Linux, Python, Ansible and Cloud skills tracks
- Every console lab in these tracks
- Linux, Python & Ansible for Network Engineers, plus AWS Cloud Networking, in hands-on terminals
- Packet captures + Packet Studio
- Reading material for every module
- Quizzes with timed exam mode
- Build your own lab — unlimited sessions, up to 20 devices
- AI lab assistant
- Completion certificate — coming soon
CONFIG PRO
Everything + advanced tracks + Real Experience Labs
- Everything in Config Essential
- Build your own lab — up to 40 devices
- Real Experience Labs: 100 days as a Network Engineer
- ServiceNow-style tickets, shifts, XP, levels and badges
- AI senior-engineer coach
- Experience certificates
- Completion certificate — coming soon
All Access Pass | 50+ Programs | Learn from Top 1% Engineers
Get 50+ courses with live class recordings.
- 50+ courses, IT Networking, Cloud, Cybersecurity and DevOps
- Live class recordings of every course
- Bundle price, 50% off the normal course fee
Tick the offer box when you buy a 1-year Config Essential or Config Pro plan.
See what is in the All Access PassStart free trial firstWant only one course's labs?
Pick a track to see its price. Pro tracks are available only with Config Pro.
SINGLE COURSE
One certification track of your choice
Select a course above to see its monthly, 6-month and 1-year price.