Subnet Management
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    Subnet Management

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    Article Summary

    The latest service changes have not yet been reflected in this content. We will update the content as soon as possible. Please refer to the Korean version for information on the latest updates.

    Available in VPC

    In Subnet Management, you can create or delete subnets within a VPC, or check the list of subnets in operation.

    Subnet Management page

    The basics of using Subnet Management are as follows.

    vpc-subnetmanage-vpc-screen_ko

    AreaDescription
    ① Menu nameName of the menu currently being viewed, number of subnets in operation
    ② Basic featuresCreate subnet, refresh the Subnet page
    ③ Post-creation featuresDelete subnet in operation
    ④ Search windowEnter a search word, and then click the i-vpc_find button to search for the item
    ⑤ Search filterSpecify the range of subnets to search
    ⑥ List of subnetsCheck the list of subnets in operation and their information

    View subnet list

    You can check the information of each subnet from the list of subnets that have been created and are in operation. The following describes how to view the information.

    Note

    You can see the list if you have one or more subnets in operation. If you don't have any subnets that have been created and are in operation, then the list is not displayed in the Subnet Management page.

    1. From NAVER Cloud Platform console's VPC environment, click the Services > Networking > VPC menus, in that order.
    2. Click the Subnet Management menu.
    3. When the list of created subnets appears, view the summarized information or click a subnet to see the details.
      vpc-subnetmanage-vpc-screen1_ko
      • Subnet name: name of the subnet
      • Subnet ID: ID value of the subnet
      • Status: status of the subnet
        • Creating: status in which the subnet is being created with the information entered by the user
        • Running: status in which the creation of the subnet has been completed with the information entered by the user, and the subnet is available for use
        • Shutting down: status in which the subnet created with the information entered by the user is being deleted
      • VPC name: name of the VPC to which the subnet belongs
      • IP address range: the subnet's IP address range
      • Zone: the available zone where the subnet is placed
      • Internet gateway exclusivity: It indicates whether the subnet is connected to the internet. Y is displayed for public subnet, and N is displayed for private subnet.
      • Purpose: purpose of the subnet
      • Network ACL: network ACL to which the subnet is applied
      • Creation date: date when the subnet was created
      • Load balancer exclusivity: It indicates whether the subnet can only be used by Load balancer.

    Change network ACL

    You can change the network ACL applied to a subnet. The following describes how to change it.

    1. From NAVER Cloud Platform console's VPC environment, click the Services > Networking > VPC menus, in that order.
    2. Click the Subnet Management menu.
    3. Click the subnet to change the network ACL for, and then click the [Change] button next to network ACL in the Details area.
      vpc-subnetmanage-vpc-aclchange_ko
    4. When the Edit Network ACL pop-up window appears, change the Network ACL, and then click the [Apply] button.

    Create subnet

    The following describes how to create a subnet from NAVER Cloud Platform console.

    1. From NAVER Cloud Platform console's VPC environment, click the Services > Networking > VPC menus, in that order.

    2. Click the Subnet Management menu.

    3. Click the [Create subnet] button.
      vpc-subnetmanage-vpc-add_ko

    4. When the Create subnet pop-up window appears, enter information for the subnet to create.

      • Subnet name: Enter the name of the subnet to create, in 3 to 30 characters.
      • VPC: Select a VPC to place the subnet in.
      • IP address range: Specify and enter within the selected VPC address range (<example> 10.0.0.0/24, 172.16.1.0/24)
        • The first 5 IPs are excluded from the available quantity since they're reserved for network IP, broadcast IP, and internal management. The number of available IPs would be 249 for /24, 121 for /25, and 57 for /26.
      • Available zone: Select a physical zone available where the subnet will be placed.
      • Network ACL: It's the network ACL to be applied to the subnet. The default rule is provided, and security can be enhanced if the network ACL is configured to fit the network environment in advance.
      • Internet gateway exclusivity: Select whether to connect the subnet to the internet.
        • A public subnet is created if Y (Public) is selected, and a server created in it can communicate via the internet after getting a public IP.
        • A private subnet is created if N (Private) is selected, and a server created in it can only communicate internally. NAT Gateway must be created separately for it to connect to the internet. (Only outbound communication is available.)
      • Purpose: Select a purpose of the subnet.
        • If the subnet is for Load Balancer, Bare Metal, NAT Gateway, then select those purposes.
    Note

    * Public load balancers can be created with a public subnet, and private load balancers can be created with a private subnet.

    1. Click the [Create] button.

    2. Check the status of the subnet that was created from the subnet list in the Subnet and Management page.

      • Creating: status in which the subnet is being created with the information entered by the user
      • Running: status in which the creation of the subnet has been completed with the information entered by the user, and the subnet is available for use

    Delete subnet

    You can delete a subnet that has been created and is in operation. The following describes how to delete it.

    Note
    • A subnet with servers in it can't be deleted.
    • A subnet can't be recovered once deleted.
    1. From NAVER Cloud Platform console's VPC environment, click the Services > Networking > VPC menus, in that order.
    2. Click the Subnet Management menu.
    3. Click the subnet to delete, and then click the [Delete Subnet] button.
    4. When the Delete subnet pop-up window appears, click the [Yes] button.
    5. Check the status of the subnet from the subnet list in the Subnet Management page.
      • Shutting down: status in which the subnet is being deleted

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