Cisco command cheat sheets
Printable Cisco IOS command references, grouped by task. Keep one beside your terminal.
A fast lookup, not a first read. Drill the math with the subnetting practice, then prove a real config on the free sample lab.
Want the picture behind the commands? The CCNA study hub ties every sheet to its guides and graded labs.
Start here — the general references · 2
Modes, interfaces and show commands underpin every topic below. Keep these two open while you work through the rest.
1 Network Fundamentals · 1 sheet
Addressing and the subnet math every later topic is built on. Start here if you are new.
2 Network Access · 3 sheets
Switching: VLANs, trunks, spanning tree and link bundling — how one campus network stays separated and loop-free.
- VLAN & Trunking Cheat SheetVLANs, access and voice ports, 802.1Q trunks, and inter-VLAN routing.
- Spanning Tree (STP) Cheat SheetSTP mode, root bridge control, port cost and priority, and edge-port protections.
- Cisco EtherChannel Cheat Sheet (LACP and PAgP)Channel-group modes, which LACP and PAgP pairs actually form, and Layer 3 bundles.
3 IP Connectivity · 3 sheets
Routing: how a packet gets from one network to another, by hand first and then dynamically with OSPF.
- OSPF Commands Cheat SheetOSPFv2 setup and verification: process, networks, areas, timers, and authentication.
- EIGRP Commands Cheat SheetEIGRP setup and verification: AS number, networks, metrics, timers, and neighbors.
- Static & Default Routing Cheat SheetStatic, default, floating-static and IPv6 routes, plus reading the routing table.
4 IP Services · 3 sheets
The services a working network runs on — addressing hosts, translating addresses, keeping time, staying reachable.
- Cisco DHCP Cheat Sheet (Server, Relay, Client)Cisco as DHCP server, relay, or client: pools, exclusions, and helper addresses.
- Cisco NAT and PAT Cheat SheetStatic NAT, dynamic pools, and PAT overload — the commands plus verification output.
- Cisco Show Commands Cheat SheetThe show and troubleshooting commands you reach for most, grouped by layer.
5 Security Fundamentals · 1 sheet
Filtering traffic and locking down the devices themselves.
Cheat sheets — FAQ
Can I print these cheat sheets?
Yes. Each cheat sheet is built to print cleanly on a page or two — the site chrome is hidden when you print, so you get just the commands. Print one, keep it beside your terminal, and mark it up as you drill.
Are the cheat sheets free?
Completely free, with no account or sign-up. Bookmark any of them and use them as much as you like. When you want to prove the commands stuck, the free sample lab grades a real Cisco config with no card required.
Which cheat sheet should I start with for the CCNA?
Start with the IOS basics reference — navigating modes, interfaces, and show commands underpins everything else — then keep the subnetting sheet close, since subnetting is the single most-tested CCNA skill. From there, add the OSPF, VLAN, and ACL sheets as you reach those topics.
How current is the Cisco IOS syntax?
Every command is fact-checked against real Cisco IOS on the same free-tier images the labs run on, so the syntax matches what you'll type on the exam and in Cisco Modeling Labs.
Know the commands cold?
Prove a real Cisco config passes — no account, no card.