Service

Network Security & Firewalls

We implement comprehensive network security solutions for organizations of any size. We specialize in open-source and commercial firewall platforms, with experience in pfSense → Cisco Secure Firewall migrations and High Availability deployments.

What's Included

pfSense & OPNsense installation & hardening
Cisco Secure Firewall (ASA/FTD) configuration
MikroTik RouterOS advanced configuration
VPN: OpenVPN, IPsec, WireGuard
VLAN segmentation & network isolation
pfBlockerNG / IDS/IPS configuration
Multi-WAN load balancing & failover
Site-to-site VPN for multiple locations

Frequently asked questions

NetworkOverIT answers on Network Security & Firewalls

Which firewall platforms does NetworkOverIT support?

pfSense, OPNsense, Cisco ASA/FTD, WatchGuard, MikroTik and Huawei. We design multi-site firewall architectures with HA pairs, VLAN segmentation, VPN tunnels (OpenVPN, IPsec, WireGuard) and IDS/IPS.

What is a firewall migration?

A firewall migration replaces an existing firewall with a new one without service interruption. NetworkOverIT has migrated pfSense to Cisco Secure Firewall in multi-site environments with zero-downtime cutover.

How long does a firewall migration take?

It depends on complexity. A single site takes 1-2 weeks (design, implementation, testing). A multi-site deployment with 5+ sites in HA configuration takes 2-3 months.

Interested in this service?

Contact us for a free assessment of your needs.

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