Subnet

Create Subnet

You can create and use the VPC Subnet service from the Samsung Cloud Platform Console.

To create a Subnet, follow these steps.

1. All Services > Networking > VPC menu, click it. 1. Go to the Service Home page of VPC.

2. On the Service Home page, click the Create Subnet button. 2. Go to the Subnet creation page.

   • Enter or select the required information in the Service Information Input area.

     Category	Required status	Detailed description
     VPC name	Required	Select the VPC to which the subnet will be attached from the list of existing VPCs Display the Availability Zone information of the selected VPC Click + Create New to create a VPC and then select it
     VPC IP range	Selection	Automatically input the CIDR range of the selected VPC
     Subnet type	Required	Select Subnet type Public: Resources within the Subnet can use Public IP NAT and the Subnet’s NAT Gateway is available Private: Resources within the Subnet cannot use Public IP NAT, but can use the Subnet’s NAT Gateway Local: Available for Virtual Server and Bare Metal Server A Local Subnet is a Subnet for communication only between servers and cannot communicate with external networks VPC Endpoint: VPC Endpoint can be configured
     Subnet classification	Required	선택한 Subnet 유형에 따라 Primary/Secondary Subnet 생성 Primary Subnet을 먼저 생성한 후 하위에 동일한 유형으로 Secondary Subnet 생성 가능 네트워크 격리가 필요한 경우에는 Primary Subnet 생성 필요 VPC Endpoint 유형은 Primary Subnet만 제공
     Availability Zone	필수	선택한 VPC가 Multi-AZ인 경우, VPC의 Availability Zone 정보 표시 3가지 Availability Zone이 자동으로 지정됨
     Subnet name	Required	Subnet name to create Enter using English letters (both uppercase and lowercase) and numbers, within 3 - 20 characters
     IP range	Required	IP range to use in IP range format /16 ~ /28 enter within the range Example: 192.168.0.0/24 The IP range cannot overlap with IP ranges already in use within the VPC (other subnets)
     Gateway IP	Required	Display the Gateway IP address of the Subnet The first IP of the entered IP range is automatically filled in Cannot be modified after the service is created

     표. Subnet 서비스 정보 입력 항목
   • In the Additional Information Input area, enter or select the required information.

     Category	Required status	Detailed description
     Explanation	Selection	Enter description for Subnet
     IP allocation range	Selection	Range can be set within the IP range to be used Select between the entire IP range or individual specification Subnet sub-resources receive IP assignments from the entered entire IP range or the individually specified range by the user When individual specification is selected, enter the start IP address and the end IP address
     DNS Name Server	Selection	After selecting Use, enter the DNS Name Server IP
     Host path	Selection	Use after selecting, enter the host path Enter the destination IP range and Next Hop IP address Destination IP ranges must not overlap each other
     tag	Selection	Add Tag Up to 50 per resource can be added After clicking the Add Tag button, enter or select Key, Value values

     표. Subnet 추가 정보 입력 항목

3. In the Summary panel, verify the detailed information and estimated charges you generated, and click the Create button.

   • Once creation is complete, check the created resources on the Subnet List page.

Check Subnet detailed information

The Subnet service allows you to view and edit the full resource list and detailed information. Subnet Details page consists of Detailed Information, Virtual IP Management, Tags, Operation History tabs.

To view detailed Subnet information, follow these steps.

1. Click the All Services > Networking > VPC menu. 1. Go to the Service Home page of VPC.
2. On the Service Home page, click the Subnet button. 2. Go to the Subnet List page.
3. On the Subnet list page, click the resource to view detailed information. 3. Go to the Subnet Details page.
   • Subnet Details page displays status information and additional feature information, and consists of Details, Virtual IP Management, Tags, Operation History tabs.

     Category	Detailed description
     Status	Subnet status Creating: Creation in progress Active: Operating normally Editing: Modification in progress Deleting: Deletion in progress Failed: State where creation failed Error: Unable to determine current state If it occurs continuously, contact the registered administrator
     Delete Subnet	Delete Subnet button

     표. Subnet 상태 정보 및 부가 기능

Detailed Information

Subnet List page lets you view the operation history of the selected resource.

Virtual IP Management

Subnet list page allows you to view the virtual IP information of the selected resource, and you can reserve or delete it.

tag

On the Subnet list page, you can view the tag information of the selected resource, and add, modify, or delete it.

Job History

You can view the operation history of the selected resource on the Sunnet List page.

Managing Virtual IP

You can reserve or manage Virtual IPs to be used in a Subnet.

Reserve Virtual IP

You can reserve a Virtual IP to be used in the Subnet.

To reserve a Virtual IP, follow these steps.

1. All Services > Networking > VPC Click the menu. 1. Go to the Service Home page of VPC.
2. On the Service Home page, click the Subnet button. 2. Navigate to the Subnet List page.
3. On the Subnet list page, click the resource to reserve a Virtual IP. 3. Subnet Details Navigate to the page.
4. On the Subnet Details page, click the Virtual IP Management tab. 4. Navigate to the Virtual IP Management tab page.
5. Click the Virtual IP Reservation button on the Virtual IP Management tab page. 5. The Virtual IP reservation window opens.
6. In the Virtual IP reservation window, set the detailed items and click OK.
   • Virtual IP: When you select Auto-Generate, an automatically generated IP is reserved, and when you select Enter, you can reserve a manually entered IP.
   • Description: Enter additional description for Virtual IP.
7. When the reservation confirmation window appears, click Confirm.

Check Virtual IP detailed information

You can view detailed information about the Virtual IP.

To view detailed information about the Virtual IP, follow these steps.

1. All Services > Networking > VPC Click the menu. 1. Navigate to the Service Home page of VPC.
2. On the Service Home page, click the Subnet button. 2. Go to the Subnet List page.
3. On the Subnet list page, click the resource to reserve a Virtual IP. 3. Subnet Details page.
4. On the Subnet Details page, click the Virtual IP Management tab. 4. Virtual IP Management Navigate to the tab page.
5. Virtual IP Management Click the resource to view on the tab page. 5. Navigate to the Virtual IP Details page.
   • *Virtual IP details The page displays the connected ports and detailed information.

     Category	Detailed description
     Virtual IP	Virtual IP address
     Public NAT IP	Public NAT IP address and status Edit icon can be clicked to edit Use after setting, you can select an existing IP or create one to add Public NAT IP cannot be modified after configuration; changes require reconfiguration
     Connection Port	Port information connected to the Virtual IP Add button click to add a connected port, you can also connect an existing port or create one to add Disconnect button click to disconnect the port
     Explanation	Virtual IP description Edit click the icon to edit
     Constructor	User who reserved a Virtual IP
     Creation date and time	Virtual IP reservation date and time
     Modifier	User who modified the Virtual IP information
     Modification date and time	Date and time the Virtual IP information was modified

     표. Virtual IP 상세 정보 항목

Virtual IP Release

You can release unused Virtual IPs in a Subnet.

To return the Virtual IP, follow these steps.

1. All Services > Networking > VPC Click the menu. 1. Navigate to the VPC’s Service Home page.
2. On the Service Home page, click the Subnet button. 2. Go to the Subnet List page.
3. On the Subnet List page, click the resource to release the Virtual IP. 3. Go to the Subnet details page.
4. On the Subnet Details page, click the Virtual IP Management tab. 4. Go to the Virtual IP Management tab page.
5. On the Virtual IP Management tab page, select the Virtual IP to return and click the Return button.
6. When the return confirmation window appears, click Confirm.

Terminate Subnet

You can delete an unused Subnet.

To delete a Subnet, follow these steps.

1. Click the All Services > Networking > VPC menu. 1. Navigate to the VPC’s Service Home page.
2. On the Service Home page, click the Subnet menu. 2. Navigate to the Subnet list page.
3. On the Subnet list page, click the resource to delete. 3. Go to the Subnet Details page.
4. On the Subnet Details page, click the Delete Subnet button.
5. After the deletion is complete, verify that the resource has been removed from the Subnet list.

Preliminary Service

This is a list of services that must be pre‑configured before creating the service. Please refer to the guide provided for each service and prepare in advance.