Interactive Networking Labs
Terminal emulation, subnetting, topology visualization, and auto-graded exercises.
IPv4 Subnetting Challenge
Practice VLSM design for a corporate network. Calculate network, broadcast, and usable host ranges with instant validation.
beginner · 30 min
SUBNETTINGAdvanced VLSM Lab
Design subnets for unequal department sizes using VLSM.
intermediate · 45 min
VLANVLAN Segmentation Lab
Configure VLANs 10, 20, 30 on a switch and verify isolation with terminal emulation.
beginner · 40 min
ROUTINGStatic Routing Lab
Configure static routes across three routers and verify end-to-end connectivity.
beginner · 50 min
ROUTINGOSPF Single-Area Lab
Enable OSPF area 0 on three routers and verify full adjacency.
intermediate · 55 min
FIREWALLFirewall Hardening Lab
Apply secure baseline rules: default deny, management ACL, logging.
intermediate · 45 min
VPNSite-to-Site IPsec VPN Lab
Configure IKEv2 IPsec tunnel parameters and verify encrypted traffic (simulated).
intermediate · 50 min
DNSDNS Resolution Lab
Trace DNS queries, configure forwarders, and troubleshoot resolution failures.
beginner · 35 min
DHCPDHCP Server Lab
Configure DHCP scopes, exclusions, and relay on Linux.
beginner · 40 min
LINUX_NETWORKINGLinux Networking Lab
Configure interfaces, routes, iptables/nftables basics, and tcpdump.
intermediate · 50 min
AWS_NETWORKINGAWS VPC Foundation Lab
Deploy VPC with public/private subnets, IGW, and route tables using guided Terraform.
intermediate · 60 min
VIRTUAL_SANDBOXPacket Flow Visualizer
Interactive animation tracing HTTP request encapsulation across OSI layers.
beginner · 20 min