Firewall Governance & Policy Automation Consulting
Firewall Governance and Policy Automation Consulting
Digvijay Parmar is a firewall governance consultant who has led 35+ enterprise firewall migrations and deployed 7,000+ firewalls, and built FirewallIQ — an AI firewall governance platform that uses set-mathematics and reachability graphs to prove changes are safe, cutting policy review time by 60%.
The firewall governance problem
Enterprise rulebases accumulate thousands of contradictory, risky rules that nobody dares touch. Most policy optimizers rely on static heuristics and metadata flags, which is why no one trusts them in production. The real problem is not cleaning rules — it is proving a change is safe before anyone approves it.
Firewall governance consulting should produce provably safe optimization recommendations under a strict change-governance workflow, with every recommendation explained by computed evidence and nothing executing without approvals, a passed simulation, and guardrail checks.
FirewallIQ — the platform I built
FirewallIQ is my AI firewall governance and remediation platform. Its analysis engine performs real IP/CIDR/port set-mathematics to detect genuinely shadowed, duplicate, and redundant rules, computes reachability graphs across network segments, and generates zero-false-deny least-privilege proofs that mathematically guarantee no observed traffic is dropped by a proposed change.
It runs end-to-end on realistic mock data out of the box, and the same connector interfaces transparently switch to live vendor APIs the moment credentials are supplied. Connectors include Palo Alto Panorama, Cisco FMC, FortiManager, Check Point, AWS, Azure, GCP, Splunk, ServiceNow, and Jira.
The result: 60% less policy review time, 30%+ legacy rules removed, and audit-ready policy traceability. It is the difference between a rule-cleanup bot and a decision system for firewall policy operations.
Migration experience at scale
I have directed over 35 migrations from legacy Cisco ASA to modern Palo Alto and Fortinet NGFWs with zero downtime, alongside greenfield programs deploying 7,000+ firewalls for Cisco's largest enterprise customers. I led multi-vendor migrations across Check Point, Juniper, Palo Alto, SonicWall, and Cisco Firepower Threat Defense, and built Python and Ansible automation for rule deployment, migration gap analysis, and compliance checks.
At Altice USA I used Panorama and Cisco FMC for unified policy enforcement, and at Northern Trust I configured FirePOWER 9300 clustered mode and integrated Cisco ISE for automated remediation.
Book a free working session
Bring one real firewall problem — a rulebase no one will touch, a migration you are scoping, or a governance gap. You leave with a diagnosis and a written summary in 24 hours.
What collaborators say
"Digvijay is conceptually and practically very sound in Cisco Technology. He is great in network troubleshooting as well, with a continuous thirst for progress and a superlative personality."
— Mukesh Pathak, Senior Infrastructure Engineer (Network & Security), Maersk
"While working with Digvijay on the same network engineering team but different projects, he was very responsive and with detailed accurate information every time. No matter if it was requesting where to locate documentation, identify a specific config on a device or explain how an appliance is working the way it is, you could always depend on Digvijay to get things done in a timely detailed manner."
— Matthew Calhoun, Manager of US Security Operations, Northern Trust
Stack & tooling
Related work
Frequently asked questions
- What is firewall governance consulting?
- It is consulting that treats firewall policy as a governed engineering practice — detecting shadowed, duplicate, redundant, and overly permissive rules, enforcing least privilege, and proving every change is safe before approval. Digvijay Parmar built FirewallIQ to do this with set-mathematics and reachability graphs.
- How does FirewallIQ prove a firewall change is safe?
- By performing IP/CIDR/port set-mathematics to detect genuinely shadowed, duplicate, and redundant rules, computing reachability graphs across network segments, and generating zero-false-deny least-privilege proofs that mathematically guarantee no observed traffic is dropped by a proposed change. Changes run only after approvals, a passed simulation, and guardrail checks.
- How many firewall migrations has Digvijay led?
- 35+ enterprise migrations across Cisco ASA, Palo Alto, Fortinet, Check Point, Juniper, and Cisco Firepower, with zero downtime, plus greenfield programs deploying 7,000+ firewalls for Cisco's largest enterprise customers.
- Which firewall vendors does Digvijay support?
- Palo Alto (Panorama, Prisma Access), Cisco (ASA, Firepower/FTD, FMC), Fortinet (FortiManager), and Check Point. He is PCNSE-certified on Palo Alto and has led multi-vendor migrations to Cisco Firepower Threat Defense.
- Can firewall governance help with audit readiness?
- Yes. FirewallIQ produces audit-ready policy traceability with SHA-256 evidence packs and a full audit trail, mapping every recommendation to computed evidence. It cut policy review time by 60% and improved audit readiness for a financial-sector environment.
Bring one real problem. Leave with a direction.
The Agentic AI Standup is a free 40-minute working session. You bring one real firewall governance & policy automation consulting problem; you leave with a diagnosis, two or three concrete recommendations, and a written summary in your inbox within 24 hours. Three slots open each week.
Book your free session See how it works