Documentation

Firewall rule testing method

Last updated: YYYY-MM-DD • Category: Config Guides

A structured method to document firewall rule intent and prove behavior with targeted tests.

Environment / assumptions

  • IPs anonymized (e.g., 10.0.x.0/30, fd00:xxxx::/64)
  • Simulated environment for demonstration (not production)

Procedure

  1. Wrote rule intent in plain English (what should be allowed/blocked).
  2. Implemented rules (anonymized) and saved config.
  3. Tested traffic for each rule (allowed + denied) and recorded evidence.
  4. Captured logs/counters to corroborate test results.

Verification

  • List the outputs that prove success.
  • Include command outputs (anonymized) when possible.

Troubleshooting

  • Issue:
  • Cause:
  • Fix:

Artifacts

  • Configs, diagrams, logs