Help Center/ Virtual Private Network/ Best Practices/ S2C Enterprise Edition VPN/ Connecting an On-premises Data Center to a VPC on the Cloud Through VPN (Access via Non-fixed IP Addresses)/ Procedure
Updated on 2024-11-07 GMT+08:00
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Procedure

Prerequisites

  • Cloud side
    • A VPC has been created. For details about how to create a VPC, see Creating a VPC and Subnet.
    • Security group rules have been configured for the VPC, and ECSs can communicate with other devices on the cloud. For details about how to configure security group rules, see Security Group Rules.
    • An enterprise router has been created if you want to use it to connect to a VPN gateway. For details, see the enterprise router documentation.
  • Data center side
    • IPsec has been configured on the VPN device in the on-premises data center. For details, see Administrator Guide.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner of the page, and choose Networking > Virtual Private Network.
  3. Configure a VPN gateway.

    1. Choose Virtual Private Network > Enterprise – VPN Gateways and click Buy VPN Gateway.
    2. Set parameters as prompted.

      Table 1 only describes the key parameters for creating a VPN gateway.

      Table 1 Description of VPN gateway parameters

      Parameter

      Description

      Value

      Billing Mode

      Select Yearly/Monthly.

      Yearly/Monthly

      Name

      Name of a VPN gateway.

      vpngw-001

      Network Type

      Select Public network.

      Public network

      Associate With

      Select VPC.

      If the VPN gateway is associated with an enterprise router, select Enterprise Router.

      VPC

      Enterprise Router

      Specify the associated enterprise router only when Associate With is set to Enterprise Router.

      er-001

      VPC

      VPC to which the interconnection subnet belongs.

      When Associate With is set to Enterprise Router, the associated enterprise router can be located in the VPC or not.

      vpc-001(192.168.0.0/16)

      Interconnection Subnet

      This subnet is used for communication between the VPN gateway and VPC. Ensure that the selected interconnection subnet has four or more assignable IP addresses.

      192.168.2.0/24

      Local Subnet

      This parameter is available only when Associate With is set to VPC.

      • Enter CIDR block

        Enter the subnet that needs to access the on-premises data center. The subnet can belong to the associated VPC or not.

      • Select subnet

        Select a subnet that belongs to the associated VPC and needs to access the on-premises data center.

      192.168.0.0/24,192.168.1.0/24

      Specification

      Select Professional 1 and Access via a non-fixed IP address.

      Professional 1: non-fixed IP address

      HA Mode

      Select Active-active.

      Active-active

      Active EIP

      EIP 1 used by the VPN gateway to access the on-premises data center.

      1.1.1.2

      Active EIP 2

      EIP 2 used by the VPN gateway to access the on-premises data center.

      2.2.2.2

  4. Configure a customer gateway.

    1. Choose Virtual Private Network > Enterprise – Customer Gateways and click Create Customer Gateway.
    2. Set parameters as prompted.

      Table 2 only describes the key parameters for creating a customer gateway.

      Table 2 Description of customer gateway parameters

      Parameter

      Description

      Value

      Name

      Name of a customer gateway.

      cgw

      Identifier

      Select FQDN and enter the customer gateway identifier.

      FQDN

      cgw-fqdn

  5. Configure VPN connections.

    1. Choose Virtual Private Network > Enterprise – VPN Connections and click Buy VPN Connection.
    2. Set parameters for VPN connection 1 and click Submit.

      Table 3 only describes the key parameters for creating a VPN connection.

      Table 3 Parameter settings for VPN connection 1

      Parameter

      Description

      Value

      Name

      Name of a VPN connection.

      vpn-001

      VPN Gateway

      VPN gateway for which the VPN connection is created.

      vpngw-001

      Gateway IP Address

      Active EIP bound to the VPN gateway.

      1.1.1.2

      Customer Gateway

      Name of a customer gateway.

      cgw

      VPN Type

      Select Policy template.

      Policy template

      Customer Subnet

      Customer-side subnet that needs to access the VPC on the cloud through VPN connections.

      • A customer subnet cannot be included in any local subnet or any subnet of the VPC to which the VPN gateway is attached.
      • Reserved VPC CIDR blocks such as 100.64.0.0/10 and 214.0.0.0/8 cannot be used as customer subnets.

      172.16.0.0/16

      PSK, Confirm PSK

      The value must be the same as the PSK configured on the customer gateway device.

      Test@123

      Policy Template

      The policy settings must be the same as those on the customer gateway device.

      Default
    3. Create VPN connection 2.

      For VPN connection 2, you are advised to use the same parameter settings as VPN connection 1, except the parameters listed in the following table.

      Table 4 Parameter settings for VPN connection 2

      Parameter

      Description

      Value

      Name

      Name of a VPN connection.

      vpn-002

      Gateway IP Address

      Active EIP 2 bound to the VPN gateway.

      2.2.2.2

  6. Configure the customer gateway device.

    The configuration procedures may vary according to the type of the customer gateway device. For details, see Administrator Guide.

Verification

  • About 5 minutes later, check states of the VPN connections.

    Choose Virtual Private Network > Enterprise – VPN Connections. The states of the two VPN connections are both Normal.

  • Verify that servers in the on-premises data center and ECSs in the Huawei Cloud VPC subnet can ping each other.