30 Subnetting Practice Questions with Answers and Explanations
Thirty subnetting problems from basic host counts to full VLSM designs, each with the worked answer and the reasoning. Timed…
IPv4 Home / Category: Routing & Switching
Category: Routing & Switching
IPv4 
IPv4 VLSM Explained — Variable Length Subnet Masking with Examples
VLSM lets you use different subnet mask lengths inside one network so each segment gets only the addresses it needs.…
IPv4 Subnetting Cheat Sheet — CIDR, Subnet Mask and Host Count Chart
Every CIDR prefix from /8 to /32 with its subnet mask, block size, host count and wildcard mask — plus…
IPv4 Subnetting Explained — How to Subnet an IP Address Step by Step
Subnetting splits one network into smaller ones by borrowing host bits. The magic number method, worked examples for /26, /28…
BGP BGP Configuration Guide — Step-by-Step eBGP and iBGP Setup on Cisco
A complete BGP configuration guide with real Cisco IOS commands — configure eBGP and iBGP peering, fix next-hop and full-mesh…