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Enterprise Networking & Security
Firewall work should improve policy quality, visibility, VPN access, and operational confidence. Sun Life Tech helps businesses install, replace, audit, migrate, and manage production firewalls with less guesswork.
Install • Replace • Audit • Clean up • Migrate • Manage
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Use the jump links below to move through planning, design, security, vendor support, and next-step topics.
We can review the current environment, the risk, and the operational impact before you commit to a migration, firewall replacement, or managed support plan.
Security delivery
This support sits inside the same documented risk, access, supplier, and continuity framework used across Sun Life Tech services.
Sun Life Tech self-declares conformity of its Information Security Management System with ISO/IEC 27001:2022 within its defined scope. Our ISMS addresses risk management, controlled access, supplier oversight, incident response, continuity planning, internal review, and continual improvement.
First-party declaration; not accredited third-party certification.
The firewall often decides what users can reach, how remote staff connect, whether sites stay linked, how traffic is inspected, and how much visibility the business has during an incident.
For many organizations, the firewall quietly carries more business responsibility than any other piece of network infrastructure. It brokers remote access, supports site-to-site VPN, applies outbound policy, handles NAT, publishes services, enforces segmentation between VLANs, and frequently provides the first useful logs when something looks wrong. That is why firewall decisions should be tied to security and operational outcomes, not just line-rate specifications.
Good firewall work starts with understanding the current business dependency: cloud apps, Microsoft 365, VoIP, vendor tunnels, branch sites, guest wireless, published portals, and any compliance or audit pressure. Once those dependencies are clear, the next step is to review whether the current policy model still reflects reality or whether the config has drifted into exception-by-exception sprawl.
Deploy new firewalls with interface planning, policy baselines, VPN setup, logging, and documented intent.
Replace aging or unsupported edge platforms before failure, licensing pressure, or inspection limitations force a rushed project.
Move from one vendor or model to another with object mapping, policy review, validation, and rollback thinking.
Review rules, objects, NAT, VPN, admin access, logging, and stale dependencies to reduce risk and support friction.
The firewall only helps when the controls are intentional, supportable, and reviewed with some discipline.
Remove duplicates, tighten broad rules, normalize objects, and document why each policy exists.
Apply inspection and prevention controls where they improve risk without breaking critical business workflows.
Use geography, category, and application controls where they align with risk and do not create blind exceptions.
Review remote access, client settings, peer tunnels, split tunneling, and authentication dependencies before users become the test plan.
Design HA pairs and failover testing around the actual business dependency, not just appliance count.
Review throughput, inspection overhead, SSL decryption scope, session behavior, and logging design when the platform feels “slow.”
Sun Life Tech works across enterprise and SMB firewall platforms. The right fit depends on visibility needs, staffing, VPN complexity, branch count, reporting expectations, and budget discipline.
Secure Firewall, FMC, site-to-site VPN, remote access, policy cleanup, and lifecycle refresh planning.
FortiGate policy management, VPN, SD-WAN, HA, FortiManager, and FortiAnalyzer operations.
PAN-OS, App-ID policy modeling, Threat Prevention, WildFire, and GlobalProtect.
Firewall deployment, application control, web filtering, VPN, and Intercept X integration alignment.
Practical edge security and branch connectivity for SMB environments that need cleaner standards and documentation.
Advanced routing and firewall work where flexibility matters and the environment can support a disciplined operating model.
Installation is only the beginning. Production firewalls need monitoring, firmware planning, config backup, reporting, and change discipline.
Inventory interfaces, policies, VPN peers, published services, admin roles, and logs before changes begin.
Normalize objects, remove stale rules, tighten broad access, and document the intent behind the rulebase.
Deploy the new platform or tune the existing one with a validation checklist and rollback path.
Back up configs, review logs, plan firmware, and keep policy drift from undoing the project.
For recurring ownership after the install or migration.
For larger cutovers touching WAN, switching, and VPN dependencies.
For “it mostly works” environments where the first need is operational clarity.
Related services
Adjacent services and consulting options that often belong in the same discussion.
For organizations that need ongoing monitoring, firmware, cleanup, and reporting after deployment.
Remote access and site-to-site VPN design that depends on a clean firewall policy model.
A structured review when the current policy set, segmentation, or exposure is unclear.
Specialized Cisco Secure Firewall design, migration, and FMC cleanup work.
Related articles
Short reads that explain the technical decisions behind networking, firewall, VPN, and infrastructure projects.
Common operational and security signs that the current edge platform is becoming risky.
Lifecycle planning guidance for hardware, licenses, support status, and business risk.
A practical checklist covering backups, firmware, HA validation, logs, and policy review.
What to document, validate, and test before cutover.
FAQ
Short answers to the questions we hear before network upgrades, firewall changes, and managed support engagements.
Next step
We can review the current network, identify the operational and security gaps, and recommend a practical next step before you commit to a redesign or vendor change.