Building the lab…

Drag to orbit · Right-drag to pan · Scroll zooms to cursor · Double-click to fly in · Click a device for details

Network Lab 80 — Lab in a Box

Interactive 3D model of an 80-workstation campus lab network designed in Cisco Packet Tracer · View project on GitHub ↗

80 PCs7 laptops3 printers 1 L3 core + 5 access sw4 VLANs1 DHCP/DNS/WEB

1 · Camera angles

Tip: scroll zooms toward the cursor · double-click any spot to fly in close

Glass case lid open

Glass case

Walls

Device labels

PC numbers

Traffic log popup

Auto-rotate

Click a PC, switch, the router, core switch, server or rack to see its configuration from the project.

Apply ACL lab isolation (planned step)

0DHCP

0Routed

0NAT out

0ACL drop

IP addressing plan

Security policy (ACL matrix)

From \ To	HW	NDICT	GFX	Staff/Net
HW (10)	—	deny	deny	permit
NDICT (20)	deny	—	deny	permit
GFX (30)	deny	deny	—	permit
Staff (40)	permit	permit	permit	permit

Physical build & hardware list

Building 7 m wide: Staff + server room 2.8 m · Hardware 6 m · NDICT 8.8 m · Graphics 11.8 m, 30 cm walls between labs
Distributed access switches per lab (keeps Cat6 runs well under 100 m), one trunk uplink per lab along the wall trunking
TP-Link TL-ER6120 SafeStream dual-WAN VPN router
TP-Link TL-SG3428 JetStream 24-port L2+ managed switch · TL-SG2218 16-port L2 managed switch
CB Premium 6U 19" wall rack · dual 24 V 120 mm cooling fans + 24 V-2 A PSU · 3U PDU · DCP 650 VA UPS
Cat6 cable, RJ45 connectors, AMP Cat6 keystone jacks, single/dual faceplates, 30 mm sunk boxes, cable ties & trunking

Configuration lifecycle

1 DHCP server pools → 2 Core switch (ip routing, SVIs, relay, trunks) → 3–7 access switches → 8 end devices (DHCP)
9 Router0 WAN + NAT/PAT → 10 ACLs → 11 SSH → 12 port security rollout → 13 end-to-end verification