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Subnet and VLAN Plan for an SME
Design a clean IP scheme and VLAN layout for a 30-person office.
Network Troubleshooting Runbook
Build a methodical diagnostic runbook for the network issues that fill an SA helpdesk queue.
Branch Network Migration Plan
Plan the network migration of a 50-person branch with zero unplanned downtime.
Enterprise Networking, Subnetting & VLAN Architecture
Reliable computer networks are the foundation of IT infrastructure. Network engineers are evaluated on IPv4/IPv6 CIDR subnetting, VLAN segmentation, switch and router configuration (Cisco/MikroTik), NAT rules, and VPN tunnel setup.
1. Network Topology & Subnet IP Plan
Network diagram specifying CIDR subnet boundaries, Gateway IPs, and VLAN IDs across corporate departments.
2. Switch & Router Configuration File
Production-ready CLI configuration script for managed switches establishing trunk ports, VLANs, and inter-VLAN routing.
3. VPN Tunnel & Latency Test Report
Site-to-Site IPsec/WireGuard VPN setup document and latency ping benchmark test log.
Frequently Asked Questions (Networking & Infrastructure)
Why should corporate networks be segmented into VLANs?
VLANs isolate network broadcast domains, improve security by preventing lateral movement, and optimize bandwidth by grouping departmental traffic.
What is the difference between a Site-to-Site VPN and a Remote Access VPN?
Site-to-Site VPNs connect two static branch office networks together securely, while Remote Access VPNs connect individual remote user laptops to the corporate network.
How does NAT (Network Address Translation) work?
NAT maps private internal IP addresses (e.g. 192.168.x.x) to a single public IP address when communicating across the internet.
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