Unifi edgerouter-x vpn setup guide for site-to-site and remote access IPsec VPN on UniFi EdgeRouter X 2026

Unifi edgerouter x vpn setup guide for site to site and remote access ipsec vpn on unifi edgerouter x – a practical, user-friendly walkthrough to get you solid site-to-site and remote access IPsec VPNs up and running on the UniFi EdgeRouter X. Quick fact: with the EdgeRouter X you can configure both IPsec site-to-site tunnels and remote access VPNs using strong, modern encryption, all from the same device. This guide covers setup, best practices, common pitfalls, and real-world tips.

• What you’ll learn
• Why the EdgeRouter X is a good fit for VPNs
• Step-by-step site-to-site VPN setup
• Step-by-step remote access VPN setup
• Troubleshooting and performance tips
• Frequently asked questions

Useful URLs and Resources text only:
Apple Website – apple.com, Artificial Intelligence Wikipedia – en.wikipedia.org/wiki/Artificial_intelligence, UniFi Community – community.ui.com, Ubiquiti Support – help.ui.com, IPSec VPN overview – en.wikipedia.org/wiki/IPsec, EdgeRouter X product page – www.ui.com/products/edge-router-x

If you’re here, you want a reliable, straightforward way to connect two networks site-to-site and give individual users secure remote access to a network using IPsec on the EdgeRouter X. This guide is practical and designed for real-world use, not theory. Here’s the quick gist: you’ll configure two separate VPN paths—one for a permanent tunnel between sites and another for remote workers who need secure access from anywhere. We’ll keep things simple with clear steps, screenshots-like descriptions, and checks you can perform to verify each stage.

Quick facts to keep in mind:

• The EdgeRouter X is compact and powerful enough for small to medium offices.
• IPsec is preferred for site-to-site because it provides strong security with relatively easy key management for two endpoints.
• Remote access IPsec VPNs are great for individual workers who don’t need direct exposure to your internal resources.

What you’ll need before you start

• EdgeRouter X with current firmware you can check via the UniFi OS or the router’s web UI
• Static public IP addresses or dynamic DNS setup for both sites if you don’t have a static IP
• Shared secret or certificates for IPsec PSK is common for small deployments
• Administrative access to both networks’ routers
• Basic understanding of your LAN layouts LAN IP ranges, subnets, etc.
• A plan for firewall rules to allow VPN traffic IPSec UDP 500/4500, ESP, and related ports

Section overview

• Site-to-site IPsec VPN: prerequisites, configuration steps, and validation
• Remote access IPsec VPN: prerequisites, user credentials, and configuration
• Security tips and best practices
• Troubleshooting common issues
• FAQ

Site-to-site IPsec VPN on EdgeRouter X
Why use site-to-site IPsec on EdgeRouter X?

• You get a persistent, encrypted bridge between two networks.
• No need for remote user authentication for ongoing connectivity; it’s a dedicated tunnel.
• Works well with static routes and straightforward firewall rules.

Prerequisites check

• Both EdgeRouter X devices with current firmware
• Public IPs or dynamic DNS entries for both sides
• LAN subnets that don’t overlap e.g., 192.168.1.0/24 on Site A, 192.168.2.0/24 on Site B
• Pre-shared key PSK or certificate-based authentication; PSK is simplest to start with
• Internet access on both sides and port openness for IPsec

Configuration steps high level

• Step 1: Define networks and Phase 1 IKE settings
• Step 2: Define Phase 2 IPsec settings and tunnel network
• Step 3: Create firewall rules to allow VPN traffic
• Step 4: Add static routes on both sides to reach the remote LAN
• Step 5: Test the tunnel and verify traffic

Detailed steps example values you can adapt

• On Site A EdgeRouter X:

  • WAN1: Your public IP or dynamic DNS
  • LAN: 192.168.1.0/24
  • Remote LAN: 192.168.2.0/24
  • IKE Phase 1 proposals: ikev2; encryption: aes256; hash: sha256; dh group 14 2048-bit
  • Phase 2 proposal: esp aes256-sha256
  • PSK: yoursharedsecret
  • VPN peer: Site B public IP
  • Remote network: 192.168.2.0/24
  • Negotiation: enable P2 perfect forward secrecy
  • Add firewall rule to allow IPsec: allow esp, ah, udp 500, 4500
  • Static route: 192.168.2.0/24 via the VPN tunnel interface

• On Site B EdgeRouter X:

  • Mirror settings: WAN1 with Site B’s public IP, LAN 192.168.2.0/24, Remote LAN 192.168.1.0/24
  • PSK must match Site A
  • Similar firewall rules and static route for 192.168.1.0/24

Verification and testing

• Check VPN status in the EdgeRouter X UI
• Ping from a host on Site A to a host on Site B
• Verify both directions work bidirectional traffic
• Use traceroute to ensure traffic follows the VPN tunnel
• Look for log entries indicating successful IKE SA establishment and IPsec SA

Remote access IPsec VPN on EdgeRouter X
Why remote access IPsec for EdgeRouter X?

• Lets individual users securely connect to the internal network from anywhere.
• Scales well for small teams; you can add multiple users with unique credentials or certificates.
• Keeps corporate resources behind the VPN, with shared access controlled by firewall rules.

Prerequisites

• EdgeRouter X on both ends or with a central hub if you’re using hub-and-spoke
• User accounts or certificates for remote clients
• Public IPs or dynamic DNS for the EdgeRouter X that will accept remote connections
• PSK or certificate-based authentication for clients
• Client software supporting IPsec like strongSwan on Linux, Shimo on macOS, Windows built-in VPN client

Configuration steps high level

• Step 1: Create a VPN server on the EdgeRouter X IPsec IKEv2
• Step 2: Define user connections and authentication method PSK or certificates
• Step 3: Configure firewall rules to allow VPN clients
• Step 4: Push routes to clients to access internal subnets
• Step 5: Distribute client profiles or credentials

Detailed steps simplified

• On EdgeRouter X:
  • Enable IPsec VPN server IKEv2
  • Set the authentication method PSK
  • Configure the internal DNS or split-tunnel rules if needed
  • Create an address pool for remote clients e.g., 10.8.0.0/24
  • Add firewall rules to allow VPN traffic and to permit internal network access for VPN clients
• On client devices:
  • Import the VPN profile or manually configure using the same PSK and IKEv2 settings
  • Connect and verify access to internal resources e.g., 192.168.1.0/24

Security considerations and best practices

• Use at least AES-256 for encryption and SHA-256 for integrity
• Prefer IKEv2 over IKEv1 for modern security features and reliability
• Do not reuse PSKs across multiple VPN peers
• Consider certificate-based authentication for remote access to minimize PSK exposure
• Regularly review firewall rules and VPN access lists
• Enable logging for VPN connections and monitor for unusual activity
• Keep firmware up-to-date to protect against known vulnerabilities

Performance tips

• Enable hardware acceleration if supported by your EdgeRouter X
• Keep the WAN and LAN subnets non-overlapping and properly segmented
• Avoid overly broad firewall rules; scope them to necessary traffic only
• Consider QoS rules if VPN traffic competes with critical services
• Use a stable DNS resolver to prevent delays in name resolution through VPN

Common issues and quick fixes

• VPN tunnel won’t establish: double-check IKE/Phase 1 and Phase 2 settings, and ensure the remote peer address is correct
• Traffic not routing through VPN: verify static routes and firewall rules, confirm the VPN interface is in use
• Remote clients can connect but can’t access internal resources: check client IP pool, push routes, and resource ACLs
• High latency or dropped packets: verify physical link quality, MTU settings, and IPsec fragmentation settings if needed
• Certificate-based remote access issues: ensure proper certificate trust and revocation checks

Formatting tips for your setup

• Use consistent subnet designations avoid overlapping ranges
• Document your PSK and only store it in secure locations; rotate PSKs periodically
• Keep a change log of VPN settings, so you can revert if something breaks

Advanced topics and tips

• Multi-site VPN: scale to more sites by adding more tunnel definitions and static routes
• Redundancy: consider dual WAN with failover for VPN reliability
• Network segmentation: place VPN endpoints in a DMZ-like layer to minimize exposure
• Monitoring: set up alerts for VPN up/down status and unusual login patterns
• Automation: script repetitive tasks backup config, apply firewall rules with edgeos CLI or API if available

Frequently Asked Questions

What is the EdgeRouter X best used for in VPN setups?

The EdgeRouter X is great for small offices needing robust IPsec VPNs with good performance in a compact form factor. It handles site-to-site tunnels and remote access VPNs well, with straightforward configuration.

Can I use IPsec with dynamic DNS?

Yes. If your public IP changes, dynamic DNS can keep your VPN endpoints reachable. Just ensure the dynamic DNS name is updated on both sides.

Should I use PSK or certificates for remote access?

PSK is simpler for many small setups, but certificates offer better security and scale when you have many remote users.

How do I test a VPN after setup?

Ping a host on the remote network, verify route tables show the VPN path, and check firewall logs to confirm traffic is allowed through the VPN.

What encryption settings are recommended?

AES-256 for encryption and SHA-256 for integrity are solid defaults. Use IKEv2 for better performance and stability.

How can I monitor VPN health?

Check VPN status pages in the EdgeRouter UI, monitor logs for SA establishment messages, and run periodic pings across the tunnel.

Can I run VPNs on both EdgeRouter X devices at the same time?

Yes, you can run site-to-site VPNs and a remote access VPN concurrently, but make sure the configurations don’t conflict and that routing remains clear.

Are there any known pitfalls with EdgeRouter X and IPsec?

Overlapping subnets, misconfigured PSK, and firewall rules that block IPSec ports are the most common issues. Keep things aligned and test early.

What about firmware updates?

Keep firmware current to ensure security improvements and bug fixes don’t break your VPN setups. Back up configurations before updating.

How do I secure my VPN after setup?

Regularly rotate PSKs or certificates, audit user access, enable logging, and use strong authentication methods. Consider splitting duties and implementing least-privilege access.

If you want to include a conclusion, you’d recap the steps and emphasize verification, but this guide intentionally ends with the FAQ to keep things concise and actionable.

Unifi edgerouter-x vpn is a router-based VPN setup that uses the UniFi EdgeRouter X to establish site-to-site and remote-access IPsec tunnels for secure, private connections. In this guide, you’ll get a straightforward, practical overview of how to configure IPsec VPNs on the EdgeRouter X, including tips to maximize security, performance, and reliability. This post covers the what, why, and how—plus step-by-step guidance, common pitfalls, and real-world scenarios. If you’re exploring VPN options to pair with your Edgerouter, you’ll also see a handy promo banner for NordVPN affiliates that you can consider for extra protection on devices that don’t sit behind the EdgeRouter X.

If you’re interested in a solid VPN deal to complement your setup, take a look at this NordVPN offer: . It’s a good way to pair a premium VPN service with your home network, especially for mobile or remote devices that aren’t always on your home LAN.

Useful resources and references unlinked text for easy copying

• Official UniFi EdgeRouter X documentation and EdgeOS help
• IPsec VPN setup guides for EdgeOS and EdgeRouter devices
• UniFi Community VPN threads and best-practice discussions
• NordVPN official site for consumer VPN features and apps

What this guide will cover

• Why you might want a VPN on the EdgeRouter X and what it can and can’t do
• The two main VPN flavors on EdgeRouter X: site-to-site IPsec and remote-access IPsec
• Prerequisites, planning tips, and network considerations
• Step-by-step setup approach high level, with GUI-friendly guidance
• Firewall, NAT, and routing changes to make VPN traffic flow correctly
• Troubleshooting tips, performance expectations, and security best practices
• A broad FAQ to answer common questions and concerns

What is Unifi edgerouter-x vpn and when to use it

Unifi edgerouter-x vpn refers to configuring the IPsec VPN features on the UniFi EdgeRouter X the small, budget-friendly router from UniFi to create encrypted tunnels. This is a hardware-based VPN solution that’s great for linking two or more networks site-to-site or providing remote users with secure access to your home or office network remote access. It’s an attractive option when you want control over routing, firewall rules, and VPN policy without paying ongoing per-user fees.

Key advantages of using the EdgeRouter X for VPN

• Cost and control: Single-device solution with flexible firewall and routing rules
• Site-to-site capability: Connect your home network to a branch office, a coworking space, or a dedicated data center
• Remote access: Allow trusted devices to connect in securely from anywhere with a VPN client
• Compatibility: Works with standard IPsec clients on Windows, macOS, iOS, Android, and Linux

Common caveats

• Setup can be intricate if you’re new to EdgeOS and IPsec concepts
• VPN throughput depends on the device’s CPU and the encryption you select
• The EdgeRouter X is a consumer-grade router. for high-load VPN scenarios, you might consider upgrading to a more powerful edge device

Why use EdgeRouter X for VPN: performance, control, and cost

EdgeRouter X gives you granular control over firewall rules, NAT, and VPN policies. You won’t be locked into a cloud VPN service. instead, you own and configure the tunnel end points, IP addresses, and traffic rules. In terms of performance, the EdgeRouter X can handle typical home or small office VPN loads, but you’ll see diminishing returns if you push multi-gigabit speeds through strong encryption on a busy network. For many homes and small offices, an IPsec VPN tunnel on EdgeRouter X delivers reliable, secure connectivity with low ongoing costs.

From a security perspective, IPsec remains a strong baseline when properly configured: long-term pre-shared keys or certificate-based authentication, robust IKE proposals, and traffic that’s routed through a dedicated VPN interface. You’ll avoid common mistakes like exposing VPN endpoints to the public internet without proper firewall rules, and you can implement MFA or certificate-based remote access if you scale up. Proton vpn microsoft edge extension 2026

Industry data point: VPN adoption and demand have grown steadily. The broader VPN market has seen double-digit growth in recent years as remote work and private browsing become more common. While numbers vary by source, expectations for continued growth are solid, making a well-configured home VPN a sensible long-term investment for privacy and connectivity.

VPN types supported on EdgeRouter X

• Site-to-site IPsec VPN: Connects two networks securely over the Internet. This is ideal for linking a home lab to a small office or another remote location.
• Remote-access IPsec VPN: Lets individual devices connect to your home network securely from anywhere, using standard VPN clients.
• Layer 2 extension options: Some users experiment with L2TP/IPsec or other tunneling approaches, but the most robust, widely-supported options on EdgeOS are IPsec site-to-site and remote access.

What you’ll likely use

• IPsec site-to-site for trusted networks: two-way encryption, mutual authentication, and routing between networks
• IPsec remote access for personal devices: Windows, macOS, iOS, and Android VPN clients commonly support IPsec with PSK or certificates

What you’ll avoid

• OpenVPN on EdgeRouter X isn’t routinely supported out-of-the-box. IPsec is the standard, well-documented route for EdgeOS VPNs
• PPTP or other deprecated protocols: avoid them due to weak security

Prerequisites and planning before you start

• A working EdgeRouter X with EdgeOS firmware and internet access
• A second VPN endpoint another site or a remote client for site-to-site or remote access testing
• Public IP address or dynamic DNS for your EdgeRouter X if you don’t have a static IP
• A plan for addressing: internal subnets on each side for example, 192.168.1.0/24 at home and 192.168.2.0/24 at the remote site
• A strong pre-shared key or better, certificate-based authentication if you’re comfortable with PKI
• Firewall rules prepared to allow VPN traffic UDP ports 500 and 4500 for IPsec, and appropriate ESP protocol handling
• A basic understanding of routing: decide which subnets should route through the VPN tunnel

Optional-but-helpful

• A dynamic DNS setup for remote access or site-to-site reliability
• A test plan: ping across the tunnel, traceroute, and speed tests to gauge VPN throughput

Step-by-step: setting up IPsec site-to-site VPN on EdgeRouter X

Note: The exact buttons in the UI may vary slightly with firmware versions, but the core concepts remain the same. Use the EdgeOS web UI or CLI if you’re comfortable to implement these steps. How to disable vpn in microsoft edge 2026

1. Prepare the VPN peers and networks

• Identify the public IP address of the remote site or its dynamic DNS name
• Decide on the local and remote subnets that will be connected through the tunnel

2. Create the IKE IKEv2 group and IPsec proposals

• In the GUI, locate the VPN/IPsec section
• Define a strong IKE policy AES-256 or AES-128 as a minimum, SHA-256 or higher for integrity
• Create an IPsec proposal with encryption and in-flight integrity settings you’re comfortable with

3. Configure the IPsec peer the remote site

• Enter the remote peer’s public IP or domain and the pre-shared key
• Attach the IKE group and IPsec proposal you created

4. Define the tunnel and traffic selectors

• Create a site-to-site tunnel with local and remote subnets
• Set the tunnel to be brought up when traffic matches those subnets

5. Set up firewall rules

• Allow VPN traffic: IPsec ESP, IKE UDP 500, NAT-T UDP 4500
• Add a firewall rule to allow VPN traffic through the WAN interface and to the VPN interface

6. Create NAT rules and routing

• If you’re using only VPN traffic between sites, you’ll typically exclude VPN subnets from NAT NAT exemption
• Ensure that traffic destined for the remote subnet is routed through the VPN tunnel

7. Test the tunnel

• Bring the VPN up and verify the tunnel status in the EdgeRouter UI
• Ping from a device on the home network to a device on the remote network
• Verify route tables and ensure that traffic is flowing over the VPN rather than the regular WAN

8. Harden and verify

• Disable weaker ciphers. use strong algorithms
• Rotate pre-shared keys periodically or migrate to certificate-based authentication
• Confirm there are no DNS leaks by testing with VPN active

Step-by-step: setting up IPsec remote-access VPN on EdgeRouter X

1. Choose a user authentication method

• PSK is simplest: create a VPN user with a strong pre-shared key
• Certificate-based authentication offers higher security and easier key management for multiple users

2. Create an IPsec remote-access configuration

• In EdgeOS, enable a VPN server for IPsec remote access and attach the chosen IKE group and proposal
• Define a pool of IP addresses for remote clients for example, 192.168.10.0/24 so that each connected client gets an address

3. Configure firewall rules and NAT

• Allow incoming IPsec traffic on the WAN interface
• Ensure remote clients can access internal resources but are blocked from accessing things they shouldn’t

4. Distribute client profiles

• For PSK: share the pre-shared key and the server address with clients
• For certificates: provide the client certificate and a CA file or profile

5. Connect and test

• Use a VPN client on a remote device and connect
• Verify access to internal resources and confirm no DNS leaks or split tunneling misconfigurations

6. Security hardening

• Enforce MFA for remote users if you can
• Regularly rotate PSKs or manage certificates
• Keep the EdgeRouter X firmware up to date

Firewall, NAT, and routing considerations for VPN traffic

• Always start with the least privilege: open only the ports you need for IPsec UDP 500, UDP 4500, ESP and the interfaces you require
• Use NAT exemptions for VPN subnets so that traffic between sites doesn’t get NATed
• For remote-access VPN, ensure your VPN pool does not conflict with your internal LAN addressing
• If you have IPv6 in your network, decide whether VPN should carry IPv6 or remain IPv4-only. many setups run IPv4 VPN with IPv6 addresses for internal traffic but IPv6 can complicate routing
• Dynamic DNS can help maintain connectivity if you don’t have a static public IP

Performance and optimization tips

• VPN throughput is typically lower than plain routing throughput. EdgeRouter X is a budget device. expect VPN speeds in the tens to hundreds of Mbps depending on your encryption and traffic mix.
• Use AES-256 with SHA-256 for a good security/performance balance. if you need more speed and your remote sites support it, try AES-GCM if available GCM can offer better performance on some devices
• Disable unnecessary features like IPS/IDS or QoS if you’re trying to squeeze more VPN performance only if you’re confident you don’t need them for protection
• For remote-access users, consider split-tunneling so only traffic destined for your LAN goes through the VPN, rather than all internet traffic
• If you’re consistently hitting VPN bottlenecks, consider upgrading to a more capable edge device or splitting traffic across multiple VPN tunnels

Security best practices for Unifi edgerouter-x vpn

• Use strong authentication: prefer certificate-based IPsec where possible or at least long, random pre-shared keys
• Rotate credentials regularly and monitor for suspicious login attempts
• Keep EdgeRouter X firmware updated to patch known vulnerabilities and improve VPN performance
• Disable older, weaker protocols or fallback options avoid PPTP. prefer IPsec with modern ciphers
• Log VPN events and monitor for unusual activity to catch misconfigurations early

Real-world usage scenarios and tips

• Home office to branch office: Use IPsec site-to-site to keep both networks on private subnets with encrypted traffic between them
• Remote workers: Remote-access IPsec with a known pool of IP addresses ensures devices appear on your network with proper access controls
• Multi-site setups: You can chain multiple site-to-site VPNs to create a hub-and-spoke topology, but keep routing and firewall rules clear to avoid loops

Troubleshooting quick hits

• Tunnel not forming: re-check pre-shared keys, peer IP, and that the correct IKE group and IPsec proposal are used on both ends
• VPN traffic not reaching remote subnet: verify routing tables and NAT exemptions. ensure firewall rules permit traffic across VPN interfaces
• Sluggish performance: reduce encryption strength, ensure MTU path is correct, and verify WAN stability
• DNS leaks: verify that DNS requests from VPN clients go through the VPN or set custom DNS to external resolvers that respect your privacy

Frequently Asked Questions

What is the best VPN protocol for EdgeRouter X?

IPsec is the standard, well-supported choice on EdgeRouter X. It offers robust security with widely compatible clients. Some users also explore L2TP/IPsec as a simpler option, but avoid outdated protocols like PPTP due to security risks.

Can I run multiple VPN tunnels on EdgeRouter X?

Yes. You can configure more than one IPsec site-to-site tunnel or multiple remote-access tunnels. Each tunnel will have its own peer or user pool, but be mindful of the EdgeRouter X’s performance limits and ensure firewall and routing rules don’t conflict.

Do I need a static IP for site-to-site VPN?

A static IP simplifies configuration and stability, but you can work with dynamic IPs by using dynamic DNS on the remote side and updating the peer address as needed. Static IPs reduce the need for ongoing management.

How do I test my VPN tunnel?

From a device on the local network, try pinging a device on the remote network through the VPN. Verify that the tunnel status shows as up in EdgeOS and that traffic routes through the VPN interface. Use traceroute to confirm route paths and test a simple throughput measurement if you can. Edge vpn turkey 2026

Is OpenVPN supported on EdgeRouter X?

Out-of-the-box OpenVPN support on EdgeRouter X isn’t standard in EdgeOS. IPsec is the recommended and widely supported option. If you need OpenVPN, you may need to explore alternative router options or add-ons, depending on your firmware and hardware.

How secure is IPsec on EdgeRouter X?

IPsec with strong ciphers AES-256, SHA-256 and secure authentication methods certificate-based or robust PSK is generally secure for home and small-office use. Regularly update firmware and rotate credentials to maintain security.

How do I secure remote-access VPN users?

Use strong user authentication, enforce minimum password requirements, rotate credentials, and consider certificate-based authentication where feasible. Limit user access to only necessary network resources and monitor VPN login activity.

Can I use IPv6 with VPN on EdgeRouter X?

You can configure IPv6 in your LAN and VPN, but it adds complexity. Decide whether VPN clients should receive IPv6 addresses and ensure firewall rules and routing support IPv6 traffic through the VPN if required.

What are common causes of VPN outages on EdgeRouter X?

Misconfigured peers, mismatched IKE/ESP settings, incorrect NAT rules, or firewall policies blocking VPN ports are common culprits. Always verify the tunnel status in EdgeOS, double-check credentials, and test with minimal rule sets to isolate issues. Edge router explained 2026

How do I rotate VPN credentials safely?

For PSK, generate a new strong key and update both peers at the same time to avoid disconnects. For certificates, revoke old certificates, reissue as needed, and deploy updated client profiles in a controlled manner.

Can I mix site-to-site and remote-access VPNs on the same EdgeRouter X?

Yes, you can run both simultaneously, but you must carefully segment traffic and apply firewall rules to prevent unintended routes or exposure. Keep distinct subnets for site-to-site networks and remote-access pools.

What’s a practical security posture for a home VPN?

• Use IPsec with AES-256 and SHA-256
• Favor certificate-based authentication if possible
• Keep firmware up to date
• Implement NAT exemptions for VPN subnets
• Restrict access through firewall rules and monitor VPN activity

Final quick-start checklist

• Confirm EdgeRouter X is running current EdgeOS firmware
• Define local and remote subnets for site-to-site or remote-access pools
• Create robust IPsec proposals and IKE groups
• Set up the VPN peers with correct authentication
• Configure firewall rules to permit IPsec and VPN traffic
• Add NAT exemptions for VPN subnets
• Test connectivity and verify routing
• Harden security with key rotation and updated configurations

If you found this guide helpful, you can pin it for later reference and share with friends who are setting up a similar home lab or small office. Remember, EdgeRouter X VPNs are a powerful tool, but they require careful planning and ongoing maintenance to stay secure and reliable.

Vpn自动断开及稳定连接的全面解决方案：从原因排查到跨平台优化，提升隐私与上网体验

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