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        • Status Codes - Virtual Private Network

          Status Codes - Virtual Private Network

          The request is not completed because the server receives an invalid response from the upstream server. 503 Service Unavailable The request is not completed because the service is unavailable. 504 Gateway Timeout A gateway timeout error occurs.

          Help > Virtual Private Network > API Reference > Appendixes
        • Updating a VPN Connection - Virtual Private Network

          Updating a VPN Connection - Virtual Private Network

          This parameter is not returned when attachment_type of the VPN gateway is set to ER and style is set to BGP or POLICY or when the IP protocol version of the VPN gateway is IPv4. tunnel_local_address String Specifies the tunnel interface address configured on the VPN gateway in route-based

          Help > Virtual Private Network > API Reference > API > S2C VPN APIs > VPN Connection
        • What Information About a Created VPN Can Be Modified and What Information Cannot Be Modified? - Virtual Private Network

          What Information About a Created VPN Can Be Modified and What Information Cannot Be Modified? - Virtual Private Network

          Local interface address Customer gateway Customer subnet Policy configuration, including IKE and IPsec policies Policy PSK Branch interconnection You cannot modify the following information: VPN gateway EIP VPN type (route-based or policy-based) Routing mode (static or BGP) The routing

          Help > Virtual Private Network > FAQs > FAQs - S2C Enterprise Edition VPN > Operations on the Console
        • Viewing VPN Connection Logs - Virtual Private Network

          Viewing VPN Connection Logs - Virtual Private Network

          In the P2C VPN gateway list, locate the target P2C VPN gateway, and click View Server in the Operation column. Click the Connections tab. The VPN connection details page is displayed. In the Connection Log area, click Configure Connection Log.

          Help > Virtual Private Network > User Guide > P2C VPN > P2C VPN Server Management
        • Overview - Virtual Private Network

          Overview - Virtual Private Network

          The specification of a VPN gateway cannot be changed. Application Scenarios Recommended for scenarios with predictable usage period Long-term use Parent topic: Billing Modes

          Help > Virtual Private Network > Billing > P2C VPN > Billing Modes
        • S2C Classic VPN - Virtual Private Network

          S2C Classic VPN - Virtual Private Network

          Will I Be Charged for VPN Gateway IP Addresses? 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?

          Help > Virtual Private Network > Billing > Billing FAQs
        • How Do I Reset a VPN Connection? - Virtual Private Network

          How Do I Reset a VPN Connection? - Virtual Private Network

          Change the remote gateway IP address of the VPN connection on the cloud to any other IP address. After the status of the connection in the on-premises data center changes to inactive, change the remote gateway IP address on the cloud to the previous IP address.

          Help > Virtual Private Network > FAQs > FAQs - S2C Classic VPN > Related Operations on the Console
        • Overview - Virtual Private Network

          Overview - Virtual Private Network

          Networking Clients can use the certificates issued by a CA to connect to a VPN gateway for access to a VPC. Figure 1 Networking diagram Solution Advantages Users can connect to a VPN gateway through client certificate authentication, securing data transmission.

          Help > Virtual Private Network > Best Practices > P2C VPN > Configuring Enterprise Edition P2C VPN to Connect Mobile Terminals to a VPC (Certificate Authentication)
        • VPN Negotiation and Interconnection - Virtual Private Network

          VPN Negotiation and Interconnection - Virtual Private Network

          How Should I Configure an On-premises Gateway When I Use a VPN to Connect to the Cloud? Does VPN Support Interconnection with a Remote Gateway Through a Domain Name? How Many Tunnels Does My VPN Connection Have?

          Help > Virtual Private Network > FAQs > FAQs - S2C Classic VPN
        • Querying a Specified VPN Connection - Virtual Private Network

          Querying a Specified VPN Connection - Virtual Private Network

          This parameter is not returned when attachment_type of the VPN gateway is set to ER and style is set to BGP or POLICY or when the IP protocol version of the VPN gateway is IPv4. tunnel_local_address String Specifies the tunnel interface address configured on the VPN gateway in route-based

          Help > Virtual Private Network > API Reference > API > S2C VPN APIs > VPN Connection
        • Does a VPN Allow for Communications Between Two VPCs? - Virtual Private Network

          Does a VPN Allow for Communications Between Two VPCs? - Virtual Private Network

          The operations are as follows: Create a VPN gateway for each VPC, and create a VPN connection between the two VPN gateways. For the VPN connection, set the customer gateway to the EIP of the peer VPN gateway.

          Help > Virtual Private Network > FAQs > FAQs - S2C Enterprise Edition VPN > Popular Questions
        • Does a VPN Allow for Communications Between Two VPCs? - Virtual Private Network

          Does a VPN Allow for Communications Between Two VPCs? - Virtual Private Network

          The operations are as follows: Create a VPN gateway for each VPC, and create a VPN connection between the two VPN gateways. For the VPN connection, set the customer gateway to the EIP of the peer VPN gateway.

          Help > Virtual Private Network > FAQs > FAQs - S2C Enterprise Edition VPN > Networking and Application Scenarios
        • How Do I Disable PFS When Creating a VPN Connection? - Virtual Private Network

          How Do I Disable PFS When Creating a VPN Connection? - Virtual Private Network

          Customer gateway in your on-premises data center By default, PFS is disabled on some vendors' devices. For details about how to disable PFS, see the corresponding product documentation. Ensure that the PFS settings on the cloud side and the customer gateway are consistent.

          Help > Virtual Private Network > FAQs > FAQs - S2C Enterprise Edition VPN > Operations on the Console
        • Creating a User and User Group - Virtual Private Network

          Creating a User and User Group - Virtual Private Network

          In the P2C VPN gateway list, locate the target P2C VPN gateway, and click Configure Server or View Server in the Operation column. On the Server tab page, set Client Authentication Mode to Password authentication (local) and click OK.

          Help > Virtual Private Network > User Guide > P2C VPN > P2C VPN Server Management
        • What Do I Do If a VPN Connection Is Interrupted and a Message Indicating DPD Timeout Is Displayed? - Virtual Private Network

          What Do I Do If a VPN Connection Is Interrupted and a Message Indicating DPD Timeout Is Displayed? - Virtual Private Network

          Alternatively, configure a keepalive function (for example, NQA) on the on-premises gateway device to keep the connection alive. Parent topic: Connection or Ping Failure

          Help > Virtual Private Network > FAQs > FAQs - S2C Enterprise Edition VPN > Connection or Ping Failure
        • What Do I Do If a VPN Connection Is Interrupted and a Message Is Displayed Indicating That the DPD Times Out? - Virtual Private Network

          What Do I Do If a VPN Connection Is Interrupted and a Message Is Displayed Indicating That the DPD Times Out? - Virtual Private Network

          Solution Enable DPD on the on-premises gateway device and test whether data flows from both ends can trigger connection establishment. Deploy a ping shell script on the servers at both ends.

          Help > Virtual Private Network > FAQs > FAQs - S2C Classic VPN > Connection or Ping Failure
        • API Overview - Virtual Private Network

          API Overview - Virtual Private Network

          Table 1 VPN APIs API Type Description S2C VPN APIs VPN Gateway APIs for creating, querying, updating, and deleting S2C VPN gateways, and querying AZs of S2C VPN gateways. Customer Gateway APIs for creating, querying, updating, and deleting customer gateways.

          Help > Virtual Private Network > API Reference
        • Introduction - Virtual Private Network

          Introduction - Virtual Private Network

          VPN supports the following actions that can be defined in custom policies: [Example] VPN gateway, including actions supported by VPN gateway APIs, such as the APIs for creating, querying, updating, and deleting VPN gateways, as well as querying the VPN gateway list.

          Help > Virtual Private Network > API Reference > Permissions and Supported Actions
        • What Are the Precautions for Configuring the Local and Remote Subnets of a VPN Connection? - Virtual Private Network

          What Are the Precautions for Configuring the Local and Remote Subnets of a VPN Connection? - Virtual Private Network

          There are routes pointing to the local subnets in the VPC where the VPN gateway resides.

          Help > Virtual Private Network > FAQs > FAQs - S2C Classic VPN > Related Operations on the Console
        • What Are the Precautions for Configuring the Local and Remote Subnets of a VPN Connection? - Virtual Private Network

          What Are the Precautions for Configuring the Local and Remote Subnets of a VPN Connection? - Virtual Private Network

          There are routes pointing to the local subnets in the VPC where the VPN gateway resides.

          Help > Virtual Private Network > FAQs > FAQs - S2C Classic VPN > Subnet Setting
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