For enterprise remote access, the main alternatives to a conventional VPN are zero-trust network access (ZTNA) for controlled access to particular private applications, and broader Secure Service Edge (SSE) or Secure Access Service Edge (SASE) approaches when private access is part of a wider cloud-delivered security program. A VPN can still suit network-level access and legacy dependencies. The right choice depends on what users need to reach, which identity and device controls you can enforce, and what your systems must continue to support.
Why compare remote-access architectures?
Enterprise users, contractors and partners may need access to applications spread across on-premises systems and multiple cloud environments. A design centered on a single network perimeter may not match that distribution. NIST describes zero-trust architecture as a way to enable authorized access to enterprise resources across those environments; its SP 1800-35 addresses hybrid workforces and partners accessing resources from anywhere.
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That does not make a VPN inherently unsuitable or make a newer label a security guarantee. CISA and partner agencies’ June 18, 2024 guidance discusses vulnerabilities, threats and misconfiguration risks associated with remote access and VPN deployments, and encourages organizations to consider Zero Trust, SSE and SASE. The practical question is whether the architecture and its controls fit your users, applications and operations.
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VPN and ZTNA are different access models, not interchangeable product labels. NIST’s SP 800-215, published in November 2022, discusses VPN, ZTNA and SASE within the evolving secure enterprise network landscape. The comparison below is architectural: it is not a product scorecard or a claim that every implementation behaves the same way.
#1 Best Overall
- 【Five Gigabit Ports】1 Gigabit WAN Port plus 2 Gigabit WAN/LAN Ports plus 2 Gigabit LAN Port. Up to 3 WAN ports optimize bandwidth usage through one device.
- 【One USB WAN Port】Mobile broadband via 4G/3G modem is supported for WAN backup by connecting to the USB port. For complete list of compatible 4G/3G modems, please visit TP-Link website.
- 【Abundant Security Features】Advanced firewall policies, DoS defense, IP/MAC/URL filtering, speed test and more security functions protect your network and data.
- 【Highly Secure VPN】Supports up to 20× LAN-to-LAN IPsec, 16× OpenVPN, 16× L2TP, and 16× PPTP VPN connections.
- Security - SPI Firewall, VPN Pass through, FTP/H.323/PPTP/SIP/IPsec ALG, DoS Defence, Ping of Death and Local Management. Standards and Protocols IEEE 802.3, 802.3u, 802.3ab, IEEE 802.3x, IEEE 802.1q
| Option | Typical access scope | When to evaluate it | Key design and operations questions |
|---|---|---|---|
| Traditional remote-access VPN | Network-level access, which may be needed for legacy systems or workflows that depend on network reachability. | When users need access to network resources, or an application cannot yet be moved to a different access pattern. | Assess concentrator exposure, configuration, patching, traffic routing and the operational burden of maintaining the deployment. CISA’s guidance describes deployment risks; it does not establish that every VPN is insecure. |
| ZTNA | Policy-controlled access between a user or device and particular private applications, on-premises or in cloud environments. | When the desired policy is access to named applications rather than broad network reachability. | Determine how identity, authentication and device signals affect decisions; how policies and exceptions are managed; and how application access is logged and monitored. NIST documents multiple implementation approaches, not one mandatory product design. |
| SSE or SASE | A broader program that can include private application access alongside other cloud-delivered security services. | When remote access is one part of a wider enterprise security-service requirement. | Confirm which services are in scope, how they integrate with existing systems, and what operational responsibilities or service dependencies the approach introduces. NIST describes SASE as a framework for integrating security services for modern enterprise networks. |
The table describes the options at a category level. NIST’s SP 1800-35 provides zero-trust implementation examples, while vendor documentation illustrates particular designs: for example, Zscaler’s Private Access architecture documentation describes that vendor’s components. Neither is an independent head-to-head test of all VPN, ZTNA, SSE or SASE offerings.
Choose based on what access must accomplish
Keep or retain VPN where network-level access is still required
Map the systems and workflows that genuinely depend on network reachability. For those, a VPN may remain necessary while you assess whether access can eventually be narrowed or redesigned. Include the concentrators, traffic paths, configuration and patching process in the risk review; account for who owns them and how changes are validated.
Rank #2
- 【AC1200 Dual-band Wireless Router】Simultaneous dual-band with wireless speed up to 300 Mbps (2.4GHz) + 867 Mbps (5GHz). 2.4GHz band can handles some simple tasks like emails or web browsing while bandwidth intensive tasks such as gaming or 4K video streaming can be handled by the 5GHz band.*Speed tests are conducted on a local network. Real-world speeds may differ depending on your network configuration.*
- 【Easy Setup】Please refer to the User Manual and the Unboxing & Setup video guide on Amazon for detailed setup instructions and methods for connecting to the Internet.
- 【Pocket-friendly】Lightweight design(145g) which designed for your next trip or adventure. Alongside its portable, compact design makes it easy to take with you on the go.
- 【Full Gigabit Ports】Gigabit Wireless Internet Router with 2 Gigabit LAN ports and 1 Gigabit WAN ports, ideal for lots of internet plan and allow you to connect your wired devices directly.
- 【Keep your Internet Safe】IPv6 supported. OpenVPN & WireGuard pre-installed, compatible with 30+ VPN service providers. Cloudflare encryption supported to protect the privacy.
Consider ZTNA for application-specific access
ZTNA is a relevant candidate when a person should reach a particular private application, not an entire network segment. Check whether the approach can accommodate the applications’ actual locations and dependencies, and whether your identity and device controls can supply the signals your policies require. NIST’s SP 1800-35 supplemental introduction describes the guide’s audience, resource types and ZTA approaches.
NIST’s 2025 SP 1800-35 documents 19 example ZTA implementations. NIST says the NCCoE worked with 24 collaborators under Cooperative Research and Development Agreements for the effort. These examples can help teams understand implementation choices; they do not prescribe a single architecture or establish that a particular implementation will fit every organization.
Rank #3
- New-Gen WiFi Standard – WiFi 6(802.11ax) standard supporting MU-MIMO and OFDMA technology for better efficiency and throughput.Antenna : External antenna x 4. Processor : Dual-core (4 VPE). Power Supply : AC Input : 110V~240V(50~60Hz), DC Output : 12 V with max. 1.5A current.
- Ultra-fast WiFi Speed – RT-AX1800S supports 1024-QAM for dramatically faster wireless connections
- Increase Capacity and Efficiency – Supporting not only MU-MIMO but also OFDMA technique to efficiently allocate channels, communicate with multiple devices simultaneously
- 5 Gigabit ports – One Gigabit WAN port and four Gigabit LAN ports, 10X faster than 100–Base T Ethernet.
- Commercial-grade Security Anywhere – Protect your home network with AiProtection Classic, powered by Trend Micro. And when away from home, ASUS Instant Guard gives you a one-click secure VPN.
Consider SSE or SASE when the scope is broader than private access
If the project also calls for a broader set of cloud-delivered security services, evaluate SSE or SASE as a wider architecture decision. NIST’s SP 800-215 discusses SASE as part of the secure enterprise network landscape, and CISA’s guidance names SSE and SASE among the approaches organizations may consider. Do not adopt a broad platform simply because you need to replace one VPN use case; first establish which additional requirements it is meant to meet.
Build a decision around your environment
Compare candidate designs against the same set of requirements rather than relying on labels or feature lists. Include:
Rank #4
- 【DUAL BAND WIFI 7 TRAVEL ROUTER】Products with US, UK, EU, AU Plug; Dual band network with wireless speed 688Mbps (2.4G)+2882Mbps (5G); Dual 2.5G Ethernet Ports (1x WAN and 1x LAN Port); USB 3.0 port.
- 【NETWORK CONTROL WITH TOUCHSCREEN SIMPLICITY】Slate 7’s touchscreen interface lets you scan QR codes for quick Wi-Fi, monitor speed in real time, toggle VPN on/off, and switch providers directly on the display. Color-coded indicators provide instant network status updates for Ethernet, Tethering, Repeater, and Cellular modes, offering a seamless, user-friendly experience.
- 【OpenWrt 23.05 FIRMWARE】The Slate 7 (GL-BE3600) is a high-performance Wi-Fi 7 travel router, built with OpenWrt 23.05 (Kernel 5.4.213) for maximum customization and advanced networking capabilities. With 512MB storage, total customization with open-source freedom and flexible installation of OpenWrt plugins.
- 【VPN CLIENT & SERVER】OpenVPN and WireGuard are pre-installed, compatible with 30+ VPN service providers (active subscription required). Simply log in to your existing VPN account with our portable wifi device, and Slate 7 automatically encrypts all network traffic within the connected network. Max. VPN speed of 100 Mbps (OpenVPN); 540 Mbps (WireGuard). *Speed tests are conducted on a local network. Real-world speeds may differ depending on your network configuration.*
- 【PERFECT PORTABLE WIFI ROUTER FOR TRAVEL】The Slate 7 is an ideal portable internet device perfect for international travel. With its mini size and travel-friendly features, the pocket Wi-Fi router is the perfect companion for travelers in need of a secure internet connectivity on the go in which includes hotels or cruise ships.
- Access scope: Does a user need network reachability, or access to a defined set of applications?
- Identity and device controls: Which identity, authentication and device-posture signals should determine access, and can the design apply them consistently?
- Application coverage: Which services are on-premises, cloud-hosted, legacy, partner-facing or dependent on other systems?
- Policy and visibility: Who owns access policies and exceptions, and what events can administrators monitor and investigate?
- User and administrator workflow: Can representative employees, contractors and partners complete the access journeys they need? What work will operations teams take on?
- Architecture dependencies: What components, traffic routes, integrations and external services does each design rely on?
- Coexistence and migration: Which VPN dependencies must remain during transition, and how will teams manage and review that overlap?
- Total cost: Compare proposals against your own users, applications, deployment requirements and operating responsibilities. The cited guidance does not establish a universal cost advantage for any option.
The available sources do not provide current comparative product pricing or an independent performance test across VPN and ZTNA vendors. Request comparable details from vendors and validate them against your own requirements; packaging, capabilities, regions, advisories and prices can change.
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Changing remote access is a design and operations project, not just a client rollout. NIST’s implementation guide and Cloudflare’s migration reference can inform planning, but neither supplies a universal migration duration or guarantees lower cost.
Best Value
- Next-Gen Gigabit Wi-Fi 6 Speeds: 2402 Mbps on 5 GHz and 574 Mbps on 2.4 GHz bands ensure smoother streaming and faster downloads; support VPN server and VPN client¹
- A More Responsive Experience: Enjoy smooth gaming, video streaming, and live feeds simultaneously. OFDMA makes your Wi-Fi stronger by allowing multiple clients to share one band at the same time, cutting latency and jitter.²
- Expanded Wi-Fi Coverage: 4 high-gain external antennas and Beamforming technology combine to extend strong, reliable, Wi-Fi throughout your home.
- Improved Battery Life: Target Wake Time helps your devices to communicate efficiently while consuming less power.
- Improved Cooling Design: No heat ups, no throttles. A larger heat sink and redefined case design cools the WiFi 6 system and enables your network to stay at top speeds in more versatile environments.
- Inventory people, devices and resources. Record employees, contractors and partners; their devices; and the applications they use across on-premises systems and cloud platforms. Identify legacy services and dependencies that may require network-level access.
- Map access decisions. For each resource, identify which identities and device signals should influence access, who owns the policy, what exceptions are necessary, and what should be logged.
- Choose an initial application set. Identify applications that can be migrated independently and select representative user journeys to validate. Avoid treating one successful application as proof that every application is ready.
- Define operations and recovery. Establish policy ownership, monitoring responsibilities, exception handling, rollout checks and rollback criteria before broad deployment.
- Test before expanding. Validate representative users, devices and application journeys, including relevant legacy and partner scenarios. Review failures and operational signals, then adjust policies or the migration sequence.
- Coexist where dependencies require it. Keep necessary VPN access during transition, with clear scope and ownership, while moving suitable applications to the new design. Retire old access only after dependent workflows have been validated.
Cloudflare’s VPN-concentrator-to-ZTNA migration reference architecture is a vendor-authored planning example, shown as updated September 16, 2026. It can inform a migration design, but it is not independent guidance or evidence that the same approach, sequence or result applies to other environments.
What the guidance can—and cannot—settle
NIST and CISA provide useful architectural and risk context: NIST SP 1800-35 shows multiple ZTA implementation examples, NIST SP 800-215 places VPN, ZTNA and SASE in the enterprise network landscape, and CISA highlights remote-access and VPN deployment risks. These sources help frame the decision; they do not identify a universal winner for a particular company.
Make the final choice against the organization’s applications, identity and device controls, operational capacity, dependencies and vendor proposals. Verify current product capabilities, service regions, advisories and pricing directly with vendors before committing.
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