Subnet Calculator
FLSM — Fixed Length | VLSM — Variable Length
Host Requirements — sorted automatically
Routing Configuration Generator
Generates Cisco IOS CLI — paste directly into Packet Tracer
No subnets calculated
Go to the Subnet Calculator tab and calculate subnets first.
Router Topology
Routing Protocol
Router Management
0 Routers
Serial Links (WAN)
Add at least 2 routers to see serial links.
CLI Output
Stage 1: Interface Configuration · Stage 2: Routing Protocol
Subnetting Cheat Sheet
2ⁿ formula · CIDR · Subnet Masks · Increments
| 2ⁿ | Total Hosts | Increment | CIDR | Subnet Mask |
|---|