NetAcadLab
Browser-based network lab

Build the network.
Watch it think.

A Packet Tracer–class lab for the web. Drag in routers, switches, firewalls, servers and PCs from eight vendors, cable them up, configure a realistic CLI, then step through every packet.

8vendor CLIs
19device models
L2–L4packet simulation

Welcome back

Sign in to open your labs.

Demo accessdemo@netacad.localNetAcad!2026
Everything you need to practice

A real lab bench, in a tab.

Vendor CLI, not buttons

IOS, EOS, Junos, RouterOS, FortiOS and Linux shells with help, modes and tab completion. Configure like you would on the real box.

Packet-level simulation

Realtime or step-by-step simulation. Inspect Ethernet, ARP, IP, ICMP, TCP/UDP, DNS and DHCP headers. Watch a ping fail at the exact hop.

L2 to L4

VLANs, 802.1Q trunks, STP, port security, MAC learning, OSPF, static routes, NAT/PAT, ACLs and stateful firewall policies.

Real cabling rules

Straight-through, crossover, fiber, serial and console. Wrong media or a shut port is diagnosed, not hidden. Link lights tell the story.

Multi-vendor security

Build a DMZ with Cisco ASA, FortiGate or Juniper SRX. Zones, NAT, policy order and stateful return traffic included.

Ready-made labs

Start from blank or load CCNA, CCNP, security and multi-vendor templates. Save, duplicate, export and import every topology.

Multi-vendor by design
CiscoAristaJuniperMikroTikFortinetUbiquitiLinuxWindows
The workflow

From blank canvas to converged network.

  1. 01

    Place devices

    Pick a brand and model. Routers, L2/L3 switches, firewalls, servers, PCs and compute nodes.

  2. 02

    Cable with intent

    Choose the exact media and ports. Mis-cabled links stay red and explain why.

  3. 03

    Configure

    Open the CLI and type real syntax. Or use quick forms for host IP, DHCP and server services.

  4. 04

    Simulate & prove

    Ping, trace, browse, DHCP, DNS. Inspect every packet in the event timeline.