Help Center/ Virtual Private Network/ Administrator Guide/ S2C Enterprise Edition VPN/ Interconnection with Alibaba Cloud/ Static Routing Mode/ Configuration on the Huawei Cloud Console
Updated on 2025-08-19 GMT+08:00
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Configuration on the Huawei Cloud Console

Prerequisites

A VPC and its subnets have been created on the management console.

Procedure

  1. Log in to Huawei Cloud management console.
  2. Choose Networking > Virtual Private Network.
  3. Configure a VPN gateway.

    1. Choose Virtual Private Network > Enterprise – VPN Gateways, and click Buy S2C VPN Gateway.
    2. Set parameters as prompted and click Buy Now.

      The following table only describes the key parameters for creating a VPN gateway. For other parameters, use their default settings.

      Table 1 Parameters for creating a VPN gateway

      Parameter

      Description

      Value

      Name

      Name of a VPN gateway.

      vpngw-001

      Associate With

      Select VPC.

      VPC

      VPC

      Huawei Cloud VPC that the on-premises data center needs to access.

      vpc-001(192.168.0.0/16)

      Interconnection Subnet

      Subnet used for communication between the VPN gateway and the VPC of the on-premises data center. Ensure that the selected interconnection subnet has four or more assignable IP addresses.

      192.168.2.0/24

      Local Subnet

      Huawei Cloud VPC subnet that needs to communicate with the VPC of the on-premises data center.

      192.168.0.0/24

      BGP ASN

      BGP AS number.

      64512

      HA Mode

      Working mode of the VPN gateway.

      Active-active

      Active EIP

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

      1.1.1.2

      Active EIP 2

      EIP 2 used by the VPN gateway to communicate with 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 configuring a customer gateway. For other parameters, use their default settings.

      Table 2 Parameters for creating a customer gateway

      Parameter

      Description

      Value

      Name

      Name of a customer gateway.

      cgw-ali

      Identifier
      • IP Address: Specify the IP address of the customer gateway.
      • FQDN: Set the fully qualified domain name (FQDN) to a string of 1 to 128 case-sensitive characters that can contain letters, digits, and special characters (excluding &, <, >, [, ], \, ?, and spaces).

        If the customer gateway does not have a fixed IP address, select FQDN.

      NOTE:

      Ensure that an ACL rule has been configured on the customer gateway device to permit UDP port 4500.

      IP Address

      1.1.1.1

  5. Configure VPN connections.

    In this scenario, the customer gateway has only one IP address. It is recommended that the VPN gateway on Huawei Cloud use the active-active mode. In this case, a VPN connection needs to be created between each of the two active EIPs of the VPN gateway and the IP address of the customer gateway.
    1. Choose Virtual Private Network > Enterprise – VPN Connections, and click Create VPN Connection.
    2. Set parameters as prompted.

      Table 3 only describes the key parameters for creating VPN connections. For other parameters, use their default settings.

      Table 3 Description of key VPN connection parameters

      Parameter

      Description

      Value

      Name

      VPN connection name.

      vpn-001

      VPN Gateway

      VPN gateway for which VPN connections are created.

      vpngw-001

      VPN Gateway IP of Connection 1

      Active EIP of the VPN gateway.

      1.1.1.2

      Customer Gateway of Connection 1

      Customer gateway of connection 1.

      1.1.1.1

      VPN Gateway IP of Connection 2

      Active EIP 2 of the VPN gateway.

      2.2.2.2

      Customer Gateway of Connection 2

      Customer gateway of connection 2.

      1.1.1.1

      VPN Type

      Select Static routing.

      Static routing

      Customer Subnet

      Subnet in the on-premises data center that needs to access the VPC on Huawei Cloud.

      • 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, 100.64.0.0/12, and 214.0.0.0/8 cannot be used as customer subnets. The reserved CIDR blocks vary according to regions and are subject to those displayed on the console.

        If you need to use 100.64.0.0/10 or 100.64.0.0/12, submit a service ticket.

      172.16.0.0/24

      Connection 1's Configuration

      Configure the IP address assignment mode of tunnel interfaces, local tunnel interface address, customer tunnel interface address, link detection, PSK, confirm PSK, and policies for connection 1.

      Set parameters based on the site requirements.

      Interface IP Address Assignment
      • Manually specify

        In this example, Manually specify is selected.

      • Automatically assign

      Manually specify

      Local Tunnel Interface Address

      Tunnel IP address of the VPN gateway.

      169.254.70.1/30

      Customer Tunnel Interface Address

      Tunnel IP address of the customer gateway.

      169.254.70.2/30

      Link Detection

      Alibaba Cloud does not support the NQA function.

      NQA disabled

      PSK, Confirm PSK

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

      Set parameters based on the site requirements.

      Policy Settings

      The policy settings must be the same as those on the firewall.

      For details, see Table 1.
      • IKE Policy
        • Version: v2
        • Authentication Algorithm: SHA2-256
        • Encryption Algorithm: AES-128
        • DH Algorithm: Group 14
        • Lifetime (s): 86400
        • Local ID: IP Address
        • Customer ID: IP Address
      • IPsec Policy
        • Authentication Algorithm: SHA2-256
        • Encryption Algorithm: AES-128
        • PFS: DH Group 14
        • Transfer Protocol: ESP
        • Lifetime (s): 3600

      Connection 2's Configuration

      Determine whether to enable Same as that of connection 1.

      NOTE:

      If you disable Same as that of connection 1, you are advised to use the same settings as connection 1 for connection 2, except the local and customer tunnel interface addresses.

      Disabled

      Local Tunnel Interface Address

      Tunnel IP address of the VPN gateway.

      169.254.71.1/30

      Customer Tunnel Interface Address

      Tunnel IP address of the customer gateway.

      169.254.71.2/30

Parent topic: Static Routing Mode