Virtual Cisco network lab

VLANs | OSPF | ACLs | NAT | DHCP/DNS

Cisco Networking Portfolio

A virtual routing and switching lab for explaining segmentation, routed reachability, edge translation, access controls, and structured troubleshooting.

5

VLANs

4

Domains

Virtual

Lab type

Cisco networking topology with WAN, core router, access switch, VLANs, NAT, ACLs, DHCP, and DNS.

What it demonstrates

Practical lab work with clear operational context.

Routing & Switching

Models VLAN segmentation, trunking, management access, and OSPF route exchange.

Edge Services

Includes NAT overload and ACL examples for guest segmentation and internet edge behavior.

Troubleshooting

Provides Layer 2, Layer 3, NAT, ACL, DHCP, and DNS troubleshooting checklists.

Workflow

Show the process, not just the result.

Each case study includes a diagrammed workflow so the environment, design choices, safety controls, and troubleshooting paths are easy to understand.

Cisco networking workflow from addressing through VLANs, trunks, OSPF, NAT, ACLs, DHCP DNS validation, and troubleshooting.

Safety controls

Designed for Packet Tracer, CML, or GNS3

No production configurations or private addresses included

Uses documentation and lab example networks

Configuration snippets are meant for review before use

Demo commands
show vlan brief
show interfaces trunk
show ip ospf neighbor
show ip route ospf
show ip nat translations
show access-lists

Review the technical case study.

The diagrams and workflow summarize the environment, controls, and operational reasoning without exposing internal prep material.