tencent cloud


Creating VPCs

Last updated: 2021-07-29 14:32:44

    Virtual Private Clouds (VPCs) are the basis for using Tencent Cloud services. When purchasing an instance such as CVM, CLB or TencentDB in a region that does not have existing VPCs, a default VPC and subnet will be automatically created.

    The default VPC and subnet are created together with your instance, and do not count against your quota in the region. They work the same as the manually-created ones. There can only be one default VPC and subnet in each region. You can delete the default VPC and subnet if you no longer need them.

    You can refer to this document to create a VPC instance on the console if the default or existing ones are not suitable.


    1. Log in to the VPC console.
    2. Select a region at the top of the VPC page, and click +New.
    3. Enter the VPC information and subnet information in the Create VPC pop-up.

      The CIDR blocks of the VPC and subnet cannot be modified after creation.

      • The VPC CIDR block can be any of the following IP ranges. For VPCs to communicate with each other over a private network, their CIDR blocks should not overlap.
        • - (mask range between 16 and 28)
        • - (mask range between 16 and 28)
        • - (mask range between 16 and 28)
      • The subnet CIDR block must fall within or be the same as the VPC CIDR block.
        For example, if the VPC IP range is, then its subnet IP range can be,, etc.
      • Availability zone: a subnet is specific to availability zone. Select an availability zone in which the subnet resides. A VPC allows for subnets in different availability zones and by default these subnets can communicate with each other via a private network.
      • Associated route table: the subnet must be associated with a route table for traffic forwarding. A default route table will be associated to ensure private network interconnection in the VPC.
      • Advanced options: you can add tags to better manage resource permissions of sub-users and collaborators.
    4. After completing the configurations, click OK. A successfully created VPC will be displayed in the list, as shown below. A new VPC has a subnet and a default route table.

    Subsequent Operation

    After the VPC and subnet have been created, you can deploy resources including CVM and CLB within the VPC.
    Click the icon as shown below to directly purchase a CVM on the CVM purchase page. For more information, see Building Up an IPv4 VPC.

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