Virtual Private Network
Virtual Private Network

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      All results for "" in this service

      • What's New
      • Service Overview
        • VPN Infographics
        • What Is VPN?
        • Product Advantages
        • Application Scenarios
        • Product Specifications
          • S2C VPN
          • P2C VPN
        • Quotas and Constraints
          • S2C VPN
          • P2C VPN
        • Reference Standards and Protocols
        • Security
          • Shared Responsibility
          • Identity Authentication and Access Control
          • Data Protection Technologies
          • Audit and Logs
          • Service Resilience
        • Permissions Management
          • IAM-based Permissions Management
          • Actions Supported by S2C VPN
            • VPN Gateway
            • Customer Gateway
            • VPN Connection
            • VPN Connection Monitor
          • Actions Supported by P2C VPN
            • VPN Gateway
            • Server
            • User Management
            • Access Policy
          • Actions Supported by Public Service APIs
            • VPN Quota
            • VPN Tag
        • VPN and Other Services
        • Basic Concepts
          • IPsec VPN
          • SSL VPN
          • VPN Gateway
          • VPN Connection
          • VPN Gateway Bandwidth
          • Local Subnet
          • Customer Gateway
          • Customer Subnet
          • PSK
          • Region and AZ
      • Billing
        • Overview of VPN Billing
        • S2C Enterprise Edition VPN
          • Billing Modes
            • Overview
            • Yearly/Monthly Billing
            • Pay-per-Use Billing
          • Billing Items
          • Billing Example
          • Billing Mode Changes
            • Overview
            • Changing the Billing Mode of a Pay-Per-Use VPN Gateway to Yearly/Monthly
            • Increasing or Decreasing the Connection Group Quota for a Yearly/Monthly VPN Gateway
            • Changing the Specification of a Yearly/Monthly VPN Gateway
        • P2C VPN
          • Billing Modes
            • Overview
            • Yearly/Monthly Billing
          • Billing Items
        • Renewal
          • Overview
          • Manually Renewing a Subscription
          • Auto-renewing a Subscription
        • Bills
        • Arrears
        • Billing Termination
        • Billing FAQs
          • S2C Enterprise Edition VPN
            • What Are the Differences Between Billing the VPN Gateway EIP Bandwidth by Bandwidth and by Traffic?
            • Can a VPN Billed by Traffic Use a Shared Data Package?
            • For How Many VPN Connections Will I Be Charged to Connect VPCs in Different Regions of Huawei Cloud?
            • When Will My VPN Resources Be Frozen? How Can I Unfreeze the VPN Resources?
          • S2C Classic VPN
            • What Is the Difference Between Billing a VPN Gateway by Bandwidth and by Traffic?
            • Can a VPN Billed by Traffic Use a Shared Data Package?
            • When Will My VPN Resources Be Frozen? How Can I Unfreeze the VPN Resources?
            • How Are VPN Resources Billed and How Do I Use Coupons?
      • Getting Started
        • Preparations
        • Configuring Enterprise Edition VPN to Connect an On-premises Data Center to a VPC
          • Overview
          • Step 1: Creating a VPN Gateway
          • Step 2: Creating a Customer Gateway
          • Step 3: Creating VPN Connections
          • Step 4: Configuring the Customer Gateway Device
          • Step 5: Verifying Network Connectivity
        • Configuring P2C VPN to Connect Mobile Terminals to a VPC
          • Overview
          • Step 1: Creating a VPN Gateway
          • Step 2: Configuring a Server
          • Step 3: Configuring a Client
          • Step 4: Verifying Connectivity
      • User Guide
        • S2C Enterprise Edition VPN
          • Enterprise Edition VPN Gateway Management
            • Creating a VPN Gateway
            • Viewing a VPN Gateway
            • Modifying a VPN Gateway
            • Changing the Specification of a VPN Gateway
            • Binding an EIP to a VPN Gateway
            • Unbinding an EIP from a VPN Gateway
            • Unsubscribing from a Yearly/Monthly VPN Gateway
            • Renewing a Yearly/Monthly VPN Gateway
            • Deleting a Pay-per-Use VPN Gateway
            • Searching for VPN Gateways by Tag
          • Customer Gateway Management of Enterprise Edition VPN
            • Creating a Customer Gateway
            • Viewing a Customer Gateway
            • Modifying a Customer Gateway
            • Deleting a Customer Gateway
            • Searching for Customer Gateways by Tag
          • Enterprise Edition VPN Connection Management
            • Creating VPN Connections
            • Configuring Health Check
            • Viewing a VPN Connection
            • Modifying a VPN Connection
            • Deleting a VPN Connection
            • Searching for VPN Connections by Tag
          • Enterprise Edition VPN Fee Management
            • Changing the Billing Mode of a VPN Gateway from Pay-Per-Use to Yearly/Monthly
            • Increasing or Decreasing the Bandwidth of an EIP Billed on a Yearly/Monthly Basis
            • Increasing or Decreasing the VPN Connection Group Quota of a Yearly/Monthly VPN Gateway
        • P2C VPN
          • P2C VPN Gateway Management
            • Creating a VPN Gateway
            • Modifying a VPN Gateway
            • Viewing a VPN Gateway
            • Unsubscribing from a VPN Gateway
            • Binding an EIP to a VPN Gateway
            • Unbinding an EIP from a VPN Gateway
            • Searching for VPN Gateways by Tag
          • P2C VPN Server Management
            • Configuring a Server
            • Checking Server Information
            • Modifying a Server
            • Uploading a Server Certificate
            • Modifying a Server Certificate
            • Uploading a Client CA Certificate
            • Deleting a Client CA Certificate
            • Creating a User and User Group
            • Modifying a User or User Group
            • Deleting a User or User Group
            • Creating an Access Policy
            • Modifying an Access Policy
            • Deleting an Access Policy
            • Resetting the Password of a User
            • Importing Users in Batches
            • Deleting Users in Batches
            • Viewing a VPN connection
            • Tearing Down a VPN Connection
            • Viewing VPN Connection Logs
            • Updating the VPN Connection Log Configuration
            • Deleting the VPN Connection Log Configuration
          • P2C VPN Client Management
            • Client Configuration Precautions
            • Configuring a Windows Client
            • Configuring a Linux Client
              • Ubuntu
              • CentOS
              • Debian
              • Red Hat Enterprise Linux
              • openSUSE
            • Configuring a macOS Client
            • Configuring an Android Client
            • Configuring an iOS Client
          • P2C VPN Fee Management
            • Increasing or Decreasing the VPN Connection Quota of a Yearly/Monthly VPN Gateway
        • Monitoring
          • Monitoring VPN
          • Metrics (S2C Enterprise Edition VPN)
          • Metrics (P2C VPN)
          • Event Monitoring (S2C Enterprise Edition VPN)
          • Viewing Metrics
          • Creating a Monitoring Alarm Rule
          • Creating an Event Alarm Rule
        • Audit
          • Key Operations That Can Be Recorded by CTS
          • Querying CTS Traces
        • Permissions Management
          • Creating a User and Granting VPN Permissions
          • VPN Custom Policies
        • Tag Management
          • Scenario
          • S2C Enterprise Edition VPN
            • Searching for Resources by Tag
            • Managing Tags
          • P2C VPN
            • Searching for Resources by Tag
            • Managing Tags
        • Quotas
      • Administrator Guide
        • S2C Enterprise Edition VPN
          • Interconnection with an AR Router of Huawei (Active-Active Connections)
            • Static Routing Mode
              • Operation Guide
              • Configuration on the Cloud Console
              • Configuration on the AR Router
              • Verification
            • BGP Routing Mode
              • Operation Guide
              • Configuration on the Cloud Console
              • Configuration on the AR Router
              • Verification
            • Policy-based Mode
              • Operation Guide
              • Configuration on the Cloud Console
              • Configuration on the AR Router
              • Verification
          • Interconnection with a Huawei AR Router (Dual Internet Lines in Active-Active Mode)
            • Static Routing Mode
              • Operation Guide
              • Configuration on the Huawei Cloud Console
              • Configuration on the AR Router
              • Verification
          • Interconnection with a Huawei USG Firewall
            • Static Routing Mode
              • Operation Guide
              • Configuration on the Huawei Cloud Console
              • Configuration on the Firewall
              • Verification
            • BGP Routing Mode
              • Operation Guide
              • Configuration on the Huawei Cloud Console
              • Configuration on the Firewall
              • Verification
          • Interconnection with a Hillstone Firewall
            • Static Routing Mode
              • Scenario
              • Data Plan
              • Configuration on the Cloud Console
              • Configuration on the Hillstone Firewall
              • Verification
            • BGP Routing Mode
              • Scenario
              • Data Plan
              • Configuration on the Cloud Console
              • Configuration on the Hillstone Firewall
              • Verification
            • Policy-based Mode
              • Scenario
              • Data Plan
              • Configuration on the Cloud Console
              • Configuration on the Hillstone Firewall
              • Verification
          • Interconnection with a Sangfor Vrtual Firewall
            • Policy-based Mode
              • Operation Guide
              • Configuration on the Huawei Cloud Console
              • Configuration on the Firewall
              • Verification
          • Interconnection with TheGreenBow VPN Client
            • Static Routing Mode
              • Operation Guide
              • Configuration on the Huawei Cloud Console
              • Configuration on TheGreenBow VPN Client
              • Verification
            • Policy-based Mode
              • Operation Guide
              • Configuration on the Huawei Cloud Console
              • Configuration on TheGreenBow VPN Client
              • Verification
          • 16 Interconnection with strongSwan
            • Static Routing Mode
              • Operation Guide
              • Configuration on the Huawei Cloud Console
              • Configuration in the On-Premises Data Center
              • Verification
            • Policy-based Mode
              • Operation Guide
              • Configuration on the Huawei Cloud Console
              • Configuration in the On-Premises Data Center
              • Verification
        • P2C VPN
          • Using the CCM to Manage a Server Certificate
          • Using Easy-RSA to Issue Certificates (Server and Client Sharing a CA Certificate)
          • Using Easy-RSA to Issue Certificates (Server and Client Using Different CA Certificates)
          • Using the CCM to Purchase Certificates
      • Best Practices
        • S2C Enterprise Edition VPN
          • Connecting an On-premises Data Center to a VPC on the Cloud Through VPN (Active-Active Mode)
            • Overview
            • Planning Networks and Resources
            • Procedure
          • Connecting an On-premises Data Center to a VPC on the Cloud Through VPN (Active/Standby Mode)
            • Overview
            • Planning Networks and Resources
            • Procedure
          • Connecting Multiple On-premises Branch Networks Through a VPN Hub
            • Overview
            • Planning Networks and Resources
            • Procedure
          • Allowing Direct Connect and VPN to Work in Active and Standby Mode to Link Data Center to Cloud
            • Overview
            • Planning Networks and Resources
            • Construction Process
            • Construction Procedure
          • Using VPN to Connect to the Cloud Through Two Internet Lines
            • Overview
            • Planning Networks and Resources
            • Procedure
          • Using VPN to Encrypt Data over Direct Connect Lines
            • Overview
            • Planning Networks and Resources
            • Configuring Direct Connect
            • Configuring VPN
            • Verification
          • Configuring VPN Load Balancing to Provide High Bandwidth for Cloud and On-Premises Interconnection
            • Overview
            • Planning Networks and Resources
            • Procedure
            • Verification
        • P2C VPN
          • Configuring Enterprise Edition P2C VPN to Connect Mobile Terminals to a VPC (Certificate Authentication)
            • Overview
            • Planning Networks and Resources
            • Procedure
      • Troubleshooting
        • S2C Enterprise Edition VPN
          • The State of a VPN Connection Is Not connected
          • Ping Tests Between Cloud and On-premises Networks Fail
          • Packet Loss Occurs
        • P2C VPN
          • Client Connection Failures
            • The Client Log Contains "Connection failed to establish within given time"
            • The Client Log Contains "Cannot load CA certificate file [[INLINE]](no entries were read)"
            • The Client Log Contains "Error message:certReadError"
            • The Client Log Contains "error:068000A8:asn1 encoding routines:wrong tag"
            • The Client Log Contains "OpenSSL: error:0A000086:SSL routines::certificate verify failed"
            • The Client Log Contains "TLS Error: TLS handshake failed"
            • The Client Log Contains "Options error: Unrecognized option or missing or extra parameter(s) in XXX: disable-dco"
            • The Client Log Contains "TCP: connect to [AF_INET] *.*.*.*:**** failed: Unknown error"
            • The Client Log Contains "AUTH: Received control message: AUTH_FAILED"
            • The Client Log Contains "AUTH_FAILED"
          • Successful Client Connection but Unavailable Services
            • A Client Cannot Ping an ECS IP Address
            • Packet Loss Occurs During Service Access
      • FAQs
        • FAQs - S2C Enterprise Edition VPN
          • Popular Questions
            1. What Devices Can Be Connected to Huawei Cloud Through a VPN?
            2. What Are VPN Negotiation Parameters? What Are Their Default Values?
            3. Can I Deploy an Application on the Cloud and a Database in an On-premises Data Center and Connect Them Through a VPN Gateway?
            4. Can I Visit Websites Across International Borders Using a VPN?
            5. What Is a VPN Connection? How Do I Set the Number of VPN Connections When Buying a VPN Gateway?
            6. Will I Be Notified If a VPN Connection Is Interrupted?
            7. Are a Username and Password Required for Creating an IPsec VPN Connection?
            8. What Are the Differences Between IPsec VPN and SSL VPN in Application Scenarios and Connection Modes?
            9. Is an IPsec VPN Connection Automatically Established?
            10. Can the EIP of a VPN Gateway Be Retained After the VPN Gateway Is Deleted?
            11. What VPN Resources Can Be Monitored?
            12. In Which Direction Is the VPN Bandwidth Limited? What Is the Unit of Bandwidth?
            13. How Is the Network Speed of a VPN Connection Tested?
            14. Can a VPN Billed by Traffic Use a Shared Data Package?
            15. How Do I Change the Billing Mode of a VPN Gateway from Pay-Per-Use to Yearly/Monthly?
            16. What Are the Relationships Between a VPC, a VPN Gateway, and a VPN Connection?
            17. What Are a Customer Gateway and a Customer Subnet in a VPN Connection?
            18. How Many VPN Connections Do I Need to Connect Multiple On-premises Servers to the Cloud?
            19. Does a VPN Allow for Communications Between Two VPCs?
            20. What Are the Impacts of a VPN on an On-premises Network? What Are the Changes to the Route for Accessing an ECS?
            21. Can I Connect a Network with Two Egresses to a VPC Through Two VPN Connections?
            22. How Can I Prevent VPN Disconnections?
            23. What Do I Do If a VPN Connection Fails to Be Established?
            24. Can EIPs Be Used as VPN Gateway IP Addresses?
            25. Why Is a VPN Connection Always in Not Connected State After Its Configuration Is Complete?
            26. Do I Need to Configure ACL Rules on the Console After I Configure ACL Rules on the On-premises Gateway Device?
            27. How Do I Determine Which EIP Is Used for Transmitting Service Traffic That Leaves the Cloud?
          • General Consulting
            1. What Are the Typical Scenarios of IPsec VPN?
            2. What Are a VPC, a VPN Gateway, and a VPN Connection?
            3. What Are the Relationships Between a VPC, a VPN Gateway, and a VPN Connection?
            4. What Is a VPN Connection? How Do I Set the Number of VPN Connections When Buying a VPN Gateway?
            5. What Are a Customer Gateway and a Customer Subnet in a VPN Connection?
            6. How Do I Plan CIDR Blocks for Access to a VPC Through a VPN Connection?
            7. Is an IPsec VPN Connection Automatically Established?
            8. What Types of VPN Service Tickets Are There? How Do I Create a VPN Service Ticket?
            9. What Devices Can Be Connected to Huawei Cloud Through a VPN?
            10. What Are VPN Negotiation Parameters? What Are Their Default Values?
            11. Are a Username and Password Required for Creating an IPsec VPN Connection?
            12. How Do I Allow Specific Hosts to Access a VPC Subnet Through a Created VPN Connection?
            13. What VPN Resources Can Be Monitored?
            14. Can EIPs Be Used as VPN Gateway IP Addresses?
            15. Do I Need to Purchase EIPs for Hosts to Communicate with Each Other Through a VPN?
            16. Are SSL VPNs Supported?
            17. How Long Does It Take for Delivered VPN Configurations to Take Effect?
            18. Does VPN Support IPv6?
            19. How Do I Determine My VPN Bandwidth?
            20. Does a VPN Connection Support SM Series Cryptographic Algorithms?
            21. Which IKE Version Should I Select When I Create a VPN Connection?
            22. How Many Bits Do the DH Groups Used by VPN Have?
            23. Can I Visit Websites Across International Borders Using a VPN?
            24. Can I Deploy an Application on the Cloud and a Database in an On-premises Data Center and Connect Them Through a VPN?
            25. What Are the Differences Between IPsec VPN and SSL VPN in Application Scenarios and Connection Modes?
            26. What Are the Differences Between Billing the VPN Gateway EIP Bandwidth by Bandwidth and by Traffic?
            27. Can a VPN Billed by Traffic Use a Shared Data Package?
            28. Can the EIP of a VPN Gateway Be Retained After the VPN Gateway Is Deleted?
            29. Where Can I Add Routes to Customer Subnets on the VPN Console?
            30. Will I Be Notified If a VPN Connection Is Interrupted?
            31. What Do I Do If a VPN Connection Fails to Be Established?
            32. In Which Direction Is the VPN Bandwidth Limited? What Is the Unit of Bandwidth?
            33. Can the Specification of a VPN Gateway Be Changed (for Example, from Professional 1 to Professional 2)?
            34. Can I Upgrade Classic VPN to Enterprise Edition VPN?
          • Networking and Application Scenarios
            1. Can I Visit Websites Across International Borders Using a VPN?
            2. Can I Deploy an Application on the Cloud and a Database in an On-premises Data Center and Connect Them Through a VPN?
            3. How Many VPN Connections Do I Need to Connect Multiple On-premises Servers to the Cloud?
            4. What Are the Differences Between IPsec VPN and SSL VPN in Application Scenarios and Connection Modes?
            5. Does a VPN Allow for Communications Between Two VPCs?
            6. What Are the Impacts of a VPN on an On-premises Network? What Are the Changes to the Route for Accessing an ECS?
            7. What Configurations Are Required at Both Ends of a VPN That Connects an On-premises Data Center to a VPC?
            8. Can I Connect a Network with Two Egresses to a VPC Through Two VPN Connections?
            9. Can I Connect Two VPCs in the Same Region Through a VPN?
            10. How Can I Connect Two VPCs in the Same Region?
            11. How Do I Enable Communications Between Two VPCs and an On-premises Network?
            12. How Do I Connect Four Subnets?
            13. Do I Need Two VPN Connections to Connect Four Subnets of Two Regions If Each Region Has Two Subnets?
            14. Can I Access OBS Through a VPN?
            15. How Do I Connect My Personal Computer to the Cloud Through a VPN?
            16. How Do I Access ECSs at Home When My Enterprise Network Has Been Connected to the Cloud Through a VPN?
            17. How Do I Establish a VPN Connection Temporarily If No IPsec-Capable On-Premises Device Is Available After I Purchase a VPN Gateway and VPN Connection?
            18. How Do I Select a Proper Region on the Cloud When I Buy a VPN Gateway?
          • Billing and Payments
            1. What Are the Differences Between Billing the VPN Gateway EIP Bandwidth by Bandwidth and by Traffic?
            2. Can a VPN Billed by Traffic Use a Shared Data Package?
            3. For How Many VPN Connections Will I Be Charged to Connect VPCs in Different Regions of Huawei Cloud?
            4. When Will My VPN Resources Be Frozen? How Can I Unfreeze the VPN Resources?
          • Operations on the Console
            1. What Are the Relationships Between a VPC, a VPN Gateway, and a VPN Connection?
            2. How Long Does It Take for Delivered VPN Configurations to Take Effect?
            3. Why Is a VPN Connection Always in Not Connected State After Its Configuration Is Complete?
            4. Can the EIP of a VPN Gateway Be Retained After the VPN Gateway Is Deleted?
            5. What Information About a Created VPN Can Be Modified and What Information Cannot Be Modified?
            6. Do I Need to Configure ACL Rules on the Console After I Configure ACL Rules on the On-premises Gateway Device?
            7. What Do I Do If an Exception Occurs When I Add a Customer Subnet During VPN Connection Creation?
            8. Where Can I Configure Routes to Customer Subnets on the VPN Console?
            9. Can I Call APIs to Manage Huawei Cloud VPN Resources?
            10. What Are a Customer Gateway and a Customer Subnet in a VPN Connection?
            11. How Do I Disable PFS When Creating a VPN Connection?
            12. How Many Local and Customer Subnets Can I Add to a VPN?
            13. What Are the Precautions for Configuring the Local and Customer Subnets for a VPN Connection?
            14. Why Is a VPN Connection in Not Connected State on the Management Console When It Is Already Available?
            15. What Can I Do If a Message Is Displayed Indicating That the VPN Connection Does Not Exist After Negotiation Policies Are Modified?
            16. What Is the Maximum Bandwidth Supported by a VPN Gateway?
            17. Which IKE Version Should I Select When I Create a VPN Connection?
            18. Are a Username and Password Required for Creating an IPsec VPN Connection?
            19. What VPN Resources Can Be Monitored?
            20. Will I Be Notified If a VPN Connection Is Interrupted?
          • VPN Negotiation and Interconnection
            1. What Devices Can Be Connected to Huawei Cloud Through a VPN?
            2. What Are VPN Negotiation Parameters? What Are Their Default Values?
            3. Is an IPsec VPN Connection Automatically Established?
            4. How Do I Configure a VPN on an On-premises Device? (Example of Configuring VPN on a Huawei USG6600 Series Firewall)
            5. Does VPN Support Interconnection with a Customer Gateway Through a Domain Name?
            6. How Many Tunnels Does My VPN Connection Have?
            7. How Do I Allow Specific Hosts to Access a VPC Subnet Through a Created VPN Connection?
            8. Do VPNs Have the DPD Function Enabled?
            9. How Can I Use Security Groups to Prevent VPN Access to Some ECSs in a VPC to Implement Security Isolation?
            10. Will a VPN Connection Be Re-established After Its Configuration Is Modified?
            11. Why Cannot I Initiate Negotiation from Amazon Web Services to Huawei Cloud After They Are Interconnected?
            12. How Do I Configure DPD for Interconnection with the Cloud?
            13. What Should I Do If My Firewall Cannot Receive Response Packets from the VPN Gateway in IKE Phase 1?
            14. What Should I Do If My Firewall Cannot Receive Response Packets from a VPN Subnet?
            15. How Many Bits Do the DH Groups Used by VPN Have?
          • Connection or Ping Failure
            1. Why Is a VPN Connection Always in Not Connected State After Its Configuration Is Complete?
            2. How Can I Prevent VPN Disconnections?
            3. How Do I Quickly Restore an Interrupted IPsec VPN Connection?
            4. What Will Happen If Traffic Exceeds the Bandwidth of a VPN Gateway?
            5. Is an IPsec VPN Connection Automatically Established?
            6. Why Cannot ECSs at the Two Ends of a Normal Cross-Region VPN Connection Ping Each Other?
            7. Why Cannot Subnets at the Two Ends of a Normal VPN Connection Access Each Other?
            8. What Do I Do If a VPN Connection Is Interrupted and a Message Indicating Data Flow Mismatch Is Displayed?
            9. What Do I Do If a VPN Connection Is Interrupted and a Message Indicating DPD Timeout Is Displayed?
            10. Why Is a VPN Connection in Not Connected State on the Management Console When It Is Already Available?
            11. Will I Be Notified If a VPN Connection Is Interrupted?
            12. What Do I Do If a VPN Connection Fails to Be Established?
            13. What Should I Do If I Cannot Access the Cloud from My On-premises Data Center or LAN After the VPN Connection Has Been Set Up?
            14. Why Is the State of a Successfully Created VPN Connection Displayed as Not Connected?
            15. Do VPNs Have the DPD Function Enabled?
          • Public Addresses
            1. Can the EIP of a VPN Gateway Be Retained After the VPN Gateway Is Deleted?
            2. Can EIPs Be Used as VPN Gateway IP Addresses?
            3. Do I Need to Purchase EIPs for Hosts to Communicate with Each Other Through a VPN?
            4. Why Does an ECS Have EIP Access Information After I Enable a VPN?
            5. Can My On-premises Gateway Have a Non-fixed Public IP Address?
          • Route Configurations
            1. What Are a Customer Gateway and a Customer Subnet in a VPN Connection?
            2. Where Can I Add Routes to Customer Subnets on the VPN Console?
            3. Do I Need to Add a Route for an ECS with Multiple NICs to Reach the On-premises Network?
            4. Huawei Cloud VPN NQA
          • Subnet Configurations
            1. What Are the Precautions for Configuring the Local and Customer Subnets for a VPN Connection?
            2. How Many Local and Customer Subnets Can I Add to a VPN?
            3. What Do I Do If an Exception Occurs When I Add a Customer Subnet During VPN Connection Creation?
            4. Can the EIP of a VPN Gateway Be Retained After the VPN Gateway Is Deleted?
            5. How Do I Plan CIDR Blocks for Access to a VPC Through a VPN Connection?
            6. How Is a VPN Gateway IP Address Allocated?
          • VPN Interesting Traffic
            1. Do I Need to Configure ACL Rules on the Console After I Configure ACL Rules on the On-premises Gateway Device?
            2. How Do I Configure and Modify the Interesting Traffic of a VPN on the Cloud?
          • Keeping VPN Connections Alive
            1. How Can I Prevent VPN Disconnections?
          • Monitoring
            1. What VPN Resources Can Be Monitored?
            2. Will I Be Notified If a VPN Connection Is Interrupted?
            3. Can I View the Traffic of Each VPN Connection?
            4. Will I Be Notified of Abnormal VPN Monitoring Results?
          • Bandwidth and Network Speed
            1. How Is the Network Speed of a VPN Connection Tested?
            2. In Which Direction Is the VPN Bandwidth Limited? What Is the Unit of Bandwidth?
            3. How Do I Change the VPN Bandwidth?
            4. What Will Happen If Traffic Exceeds the Bandwidth of a VPN Gateway?
            5. Why Does the VPN Bandwidth Change Not Take Effect?
            6. What Are the Differences Between the Bandwidth of a VPN Connection and That of a Direct Connect Connection?
            7. How Do I Determine My VPN Bandwidth?
          • Quotas
            1. What Quotas Does a VPN Have?
            2. How Many VPN Gateways and VPN Connections Can I Create By Default?
            3. How Do I Change My VPN Gateway and Connection Quotas?
            4. How Many IPsec VPNs Can I Have?
          • Account Permissions
            1. Are a Username and Password Required for Creating an IPsec VPN Connection?
            2. What Should I Do If the System Displays a Message Indicating that I Do Not Have the Permissions to Create a VPN?
            3. How Do I Determine that a VPN Cannot Be Created in My Account Due to Insufficient Permissions?
        • FAQs - P2C VPN
          1. How Do I Test the Bandwidth of a P2C VPN Gateway?
          2. Does a P2C VPN Gateway Support Domain Name Access?
          3. Failed to Upload Certificates to CCM
            1. Error Message "The certificate chain length must be greater than 1." Is Displayed During Certificate Upload
            2. Error Message "Incorrect format of the domain bound to the certificate to be uploaded." Is Displayed During Certificate Upload
          4. When a Client Fails to Connect to a VPN Gateway, No Error Information Is Displayed and the Client Is Always in Connecting State.
      • API Reference
        • Before You Start
        • API Overview
        • Calling APIs
          • Request
          • Authentication
          • Response
        • API
          • S2C VPN APIs
            • S2C VPN Gateway
              • Creating a VPN Gateway
              • Querying a Specified VPN Gateway
              • Querying the VPN Gateway List
              • Updating a VPN Gateway
              • Changing the Specification of a Gateway
              • Deleting a VPN Gateway
              • Querying the AZs of VPN Gateways
              • Querying the Route Table of a VPN Gateway
            • Customer Gateway
              • Creating a Customer Gateway
              • Querying a Specified Customer Gateway
              • Querying the Customer Gateway List
              • Updating a Customer Gateway
              • Deleting a Customer Gateway
            • VPN Connection
              • Creating a VPN Connection
              • Creating VPN Connections in Batches
              • Querying a Specified VPN Connection
              • Querying the VPN Connection List
              • Updating a VPN Connection
              • Deleting a VPN Connection
              • Querying VPN Connection Logs
            • VPN Connection Monitoring
              • Creating a VPN Connection Monitor
              • Querying a VPN Connection Monitor
              • Querying the List of VPN Connection Monitors
              • Deleting a VPN Connection Monitor
          • P2C VPN APIs
            • P2C VPN Gateway
              • Querying a P2C VPN Gateway
              • Querying the P2C VPN Gateway List
              • Modifying a P2C VPN Gateway
              • Querying the AZs of P2C VPN Gateways
              • Querying the Connections of a P2C VPN Gateway
              • Tearing Down a Connection of a P2C VPN Gateway
            • Server
              • Creating a VPN Server
              • Querying a VPN Server Based on a Specified Gateway ID
              • Modifying a VPN Server
              • Exporting the Client Configuration Corresponding to a VPN Server
              • Querying All VPN Servers of a Tenant
              • Verifying a Client CA Certificate
              • Uploading a Client CA Certificate
              • Querying a Client CA Certificate
              • Modifying a Client CA Certificate
              • Deleting a Client CA Certificate
              • Modifying the Connection Log Configuration of a P2C VPN Gateway
              • Querying the Connection Log Configuration of a P2C VPN Gateway
              • Deleting the Connection Log Configuration of a P2C VPN Gateway
            • User Management
              • Creating a VPN User
              • Creating VPN Users in Batches
              • Querying a VPN User
              • Querying the VPN User List
              • Modifying a VPN User
              • Deleting a VPN User
              • Deleting VPN Users in Batches
              • Changing the Password of a VPN User
              • Resetting the Password of a VPN User
              • Creating a VPN User Group
              • Querying a VPN User Group
              • Querying the VPN User Group List
              • Modifying a VPN User Group
              • Deleting a VPN User Group
              • Adding a VPN User to a Group
              • Removing a VPN User from a Group
              • Querying VPN Users in a Group
            • Access Policy
              • Creating a VPN Access Policy
              • Querying a VPN Access Policy
              • Querying the VPN Access Policy List
              • Modifying a VPN Access Policy
              • Deleting a VPN Access Policy
          • Public Service APIs
            • VPN Quota
              • Querying Quotas
            • VPN Tag
              • Querying the Resource Instance List
              • Querying the Number of Resource Instances
              • Adding Resource Tags in Batches
              • Deleting Resource Tags in Batches
              • Querying Resource Tags
              • Querying Project Tags
        • Application Examples
          • Example 1: Creating an S2C VPN Gateway
          • Example 2: Creating a Customer Gateway
          • Example 3: Creating Dual VPN Connections
          • Example 4: Creating a VPN Connection Monitor
          • Example 5: Creating a Server
          • Example 6: Creating a User and a User Group
          • Example 7: Creating an Access Policy
        • Permissions and Supported Actions
          • Introduction
          • Actions Supported by S2C VPN
            • VPN Gateway
            • Customer Gateway
            • VPN Connection
            • VPN Connection Monitor
          • Actions Supported by P2C VPN
            • VPN Gateway
            • Server
            • User Management
            • Access Policy
          • Actions Supported by Public Service APIs
            • VPN Quota
            • VPN Tag
        • Appendixes
          • Obtaining the Project ID
          • Status Codes
          • Error Codes
        • Change History