Build enterprise network security with remote access VPN, site-to-site VPN, access control firewall, network segmentation, traffic monitoring and centralized logs. Does not depend on closed devices, does not pay license fees by user or throughput.
✓ No license / user fees · ✓ Centralized access management · ✓ 24/7 Vietnamese support
The business network is being protected at
The entire solution is built entirely on the company's infrastructure (On-premise) and can operate with an independent storage system (Air-gapped). This is the optimal model to ensure data sovereignty, privacy and eliminate dependence on third-party Cloud providers thanks to 100% autonomy from hardware to software.
Remote employees, branches connected to the office, camera/IP phone/ERP/file server are on the same network. When an access control layer is missing, a small problem can spread throughout the system.
Shared account, port opens directly to the Internet, no MFA, no idea who accessed the internal system when. This is a common entry point for ransomware and password sniffing attacks.
Each office uses its own configuration, its own line, and its own security rules. When needing to open more branches, IT has to configure it manually, making it difficult to standardize policies and check for errors.
When the network is slow, port scanned or has unusual traffic, businesses do not have a dashboard to trace. The problem is only detected when users are already affected.
The solution focuses on access control, network edge protection, secure connection between users and branches, and provides daily operational monitoring capabilities.
Enable employees working outside the office to access internal resources over encrypted channels, controlled by account, group, and device.
Secure connections between main office, branches, warehouses, factories and data centers without the need for expensive private lines.
Apply clear firewall rules to each network zone, each user group and each service to reduce the attack surface.
Separate office networks, servers, cameras, guest Wi-Fi, IoT devices and accounting systems to limit the spread of incidents.
Monitor bandwidth, connections, top talkers, blocked access and unusual behavior on the network.
Standardize security configurations, periodically backup and quickly restore in case of device failure or misconfiguration.
All designed for businesses to clearly manage network access, reduce risk and operate more easily.
Businesses still have full core network security features without being locked into subscriptions by user, device or throughput.
| Criteria | NAD Network Security | Paid firewall devices | Paid cloud VPN | UTM subscription package |
|---|---|---|---|---|
| User license fee | 0 ₫ | Can arise according to model | Calculated per user/month | Calculated by package/year |
| VPN remote access | ✓ | ✓ | ✓ | ✓ |
| VPN site-to-site | ✓ | ✓ | Depending on the package | ✓ |
| Firewall rule details | ✓ | ✓ | Limit | ✓ |
| VLAN segment | ✓ | ✓ | — | ✓ |
| No vendor lock | ✓ | ✕ | ✕ | ✕ |
| Log data resides in the enterprise | ✓ | Depending on configuration | Cloud dependency | Depending on the package |
| User/branch expansion costs | Do not increase license | It may be necessary to upgrade the | Increases by user | Increase by package |
| Customize rules according to business | Very high | Cao | Average | According to vendor policy |
| Suitable for SMEs that need autonomy | ✓ Cost optimization | Good but high cost | Convenient but dependent on | Powerful but with recurring fees |
The enterprise owns the configuration, access policies, and log data. The main costs lie in consulting, implementation, hardening and operational support.
Adding remote employees or adding VPN accounts does not increase the monthly license fee.
Can run on hardware that suits the budget and throughput needs of the business.
Firewall rules, routes, VLANs, logs and configuration backups are under the control of the business.
NAD supports rule design, connection troubleshooting, log review and periodic security optimization.
Common situations after standardizing VPN, firewall and network segmentation.
"Previously, remote employees used the same account. Now each person has their own account, logs clearly, and when they quit their job, it is immediately revoked."
"Branch connections to ERP are more stable, without having to open ports directly to the Internet. Rules between departments are also much clearer."
"Log reports help us know who accesses the accounting server, when, and from where. This is something that was not available before."
NAD deploys in the least disruptive way: surveying the current situation, designing policies, running a pilot, and then officially converting.
Inventory lines, subnets, servers, branches, remote users and important devices.
Build VLAN diagrams, firewall rules, VPN, access policies and conversion plans.
Test deployment for a group of users or a branch, test speed and access rights.
Official conversion, handover of documents, configuration backup and operating instructions.
The cost depends on the number of branches, VPN users, rule complexity and monitoring requirements.
Suitable for businesses that need remote access security for employees.
Suitable for SMEs needing network access control, branch VPN and internal segmentation.
For businesses with many branches and transmission lines, requiring HA and advanced monitoring.
No license fees per user. Businesses only pay for consulting, implementation, hardening and operational support.
Schedule a free survey for NAD to assess the current network status, remote access risks and budget-friendly VPN/Firewall deployment options.