Subnet Management

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Available in VPC

In Subnet Management, you can create or delete subnets within a VPC, or check the list of subnets in operation. LoadBalancer, general, BareMetal, NatGateway and SFC types of subnets are provided. You can select appropriate subnet for the purpose.

Note
  • You can use the SFC subnet only when you selected Public in the transit VPC.
  • You cannot set a routing table for SFC subnets. To control the network flow in the SFC subnet, see Service Function Chain.

View subnet list

You can check the information of each subnet from the list of subnets that have been created and are in operation. To check:

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. In the VPC environment of the NAVER Cloud Platform console, navigate to i_menu > Services > Networking > VPC.
  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.
    • Subnet name: Name of subnet.
    • Subnet ID: ID value of subnet.
    • Status: Status of 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 VPC to which the subnet belongs.
    • IP address range: IP address range of subnet.
    • Zone: The available zone where the subnet is placed.
    • Internet Gateway exclusivity: 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 subnet.
    • Network ACL: Network ACL to which the subnet is applied.
    • Creation date and time: Date when the subnet is created.
    • Load Balancer exclusivity: Indicates whether the subnet is dedicated for use only with Load Balancer.

Change network ACL

You can change the network ACL applied to a subnet. To change:

  1. In the VPC environment of the NAVER Cloud Platform console, navigate to i_menu > Services > Networking > VPC.
  2. Click the Subnet Management menu.
  3. Click the subnet to change the network ACL for, and then click [Change] next to network ACL in the detailed component.
  4. When the Edit Network ACL popup appears, change the Network ACL, and then click [Apply].

Create Subnet

To create a subnet from NAVER Cloud Platform console:

  1. In the VPC environment of the NAVER Cloud Platform console, navigate to i_menu > Services > Networking > VPC.
  2. Click the Subnet Management menu.
  3. Click [Create Subnet].
  4. When the Create Subnet popup 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 the subnet has internet connectivity.
      • If you select Y (Public), a public subnet is created, and a server created in it can communicate through the Internet after getting a public IP.
      • If you select N (Private), a private subnet is created, 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, and SFC, then select those purposes.
    Note
    • You can use the SFC subnet only when you selected Public in the transit VPC.
  5. Click [Create].
  6. 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. To delete:

Note
  • A subnet with servers in it can't be deleted.
  • A subnet can't be recovered once deleted.
  1. In the VPC environment of the NAVER Cloud Platform console, navigate to i_menu > Services > Networking > VPC.
  2. Click the Subnet Management menu.
  3. Click the subnet to delete, and then click [Delete Subnet].
  4. When the Delete subnet popup appears, click [Yes].
  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.