# sergiomarotco/Network-segmentation-cheat-sheet

Best practices for segmentation of the corporate network of any company

Repository: https://github.com/sergiomarotco/Network-segmentation-cheat-sheet
Canonical: https://ross.abutalabs.com/products/network-segmentation-cheat-sheet
License: Apache-2.0
License Family: permissive
Topics: segmentation-network, network-segmenation, network-security, firewalling, segmetation-benchmarks, network-segment, vlaning, vlan-best-practice, network-isolation, firewall-segmentation
Last push: 2026-02-02T19:22:40+00:00

## Health v2 (maintenance only)
Score: 52/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 65, release rhythm 8, longevity 100
- inputs: {"age_days": 1748, "days_push": 212, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3493, forks 284 (observed 2026-08-28T04:08:07.255329+00:00)

## What it is
A curated collection of best-practice diagrams and guidance for segmenting corporate networks, organized into maturity levels. It includes schematic diagrams with firewall boundaries and explanations of advantages, disadvantages, and attack-vector mitigations for each level.

## Use cases
- design network segmentation for a company
- learn best practices for VLAN and firewall segmentation
- isolate production network from corporate network
- plan network security zones and segments
- protect against lateral movement in the network
- choose a network segmentation maturity level

## When to choose
- you need reference diagrams and guidance for segmenting a corporate network
- you want a maturity-model approach from basic to advanced segmentation
- you are an architect or security engineer planning network isolation

## When to avoid
- you need automated tooling or scripts rather than documentation
- you need vendor-specific firewall configuration guides
- you need hands-on implementation code

## Facets
- artifact type: learning-resource
- maturity: active
- function: networking, security, documentation
- domain: networking, security, infrastructure-as-code
- platform: cross-platform
- tags: network-segmentation, cheat-sheet, firewall, vlan, best-practices, diagrams

## Member repositories
- sergiomarotco/Network-segmentation-cheat-sheet (main) score 52

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:07.255329+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:35:56.327680+00:00, confidence not recorded.
  - readme: https://github.com/sergiomarotco/Network-segmentation-cheat-sheet (fetched 2026-08-28T04:08:07.255329+00:00, sha a7af58150236)
- Data as of 2026-08-30T08:39:29.467469+00:00.