Firewall migration
Move from a legacy platform or from one vendor to another, with a tested plan for avoiding outages.
The problem
The firewall is reaching end of support, or you are changing vendors, and it carries years of rules nobody fully understands.
A failed cutover stops the business, so the project keeps being pushed back.
What’s included
- Review of the existing rule base and NAT
- Rule conversion and clean-up
- Coexistence plan for running old and new side by side
- Cutover and rollback runbook
- Application testing with your owners
- Hypercare after go-live
Deliverables
- Migration plan and cutover runbook
- Converted, cleaned-up rule base
- Test results by application
- As-built document and handover notes
How it works
Assess & understand
We review the current configuration, usage data and critical applications.
Design & plan
We map old rules to new, remove what is unused and plan each cutover wave.
Implement & configure
We build the new policy, run coexistence and cut over in agreed windows.
Test & handover
We test with application owners, stay on for hypercare and hand over documents.
Frequently asked questions
Can you guarantee no downtime?
No honest engineer can guarantee that. We reduce the risk with coexistence, staged cutovers and a tested rollback, and we plan any expected interruption with you.
Do you migrate every rule as it is?
No. We use hit counts and logs to remove unused and shadowed rules, and you approve what changes.
What happens after the cutover?
We stay on for an agreed hypercare period to fix anything that surfaces, then hand over the final documents.
Ready to talk about firewall migration?
Tell us what you are planning and get a written list of next steps.