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Create and manage route tables

The following describes how to create and manage route tables in the VPC service.

Permission notice
  • VPC role management follows IAM role-based access control (RBAC), and only Project Admin can create and manage route tables. Project members can only view route tables.
  • You can check your role in KakaoCloud console > Profile (top right) > Organization role or Project role.

Create route table​

You can create a new route table.

  1. Go to KakaoCloud console > Networking > VPC.

  2. Click the Routing Table menu, and then click the [Create route table] button.

  3. In the Create route table pop-up window, enter the information, and then click the [Create] button.

    vpc_htg_rt_kr2_03.png

    CategoryDescription
    Route table nameEnter the name of the route table to create
    VPCSelect the VPC where the route table will be located

Manage route tables​

You can view created route tables or perform tasks such as changing the name and changing the default route table.

View route table list and basic information​

You can view the currently created route table list and basic information.

  1. Go to KakaoCloud console > Networking > VPC.

  2. Click the Routing Table menu, and then check the list of currently created route tables.

    CategoryDescription
    NameName of the created route table
    IDID of the created route table
    StatusStatus of the route table
    VPCName of the VPC where the route table is located
    Number of connected resourcesNumber of subnets connected to the route table
    DefaultWhether it is a default route table
    - Yes: Route table automatically created with the VPC (cannot be deleted)
    - No: Route table additionally created by the user (can be deleted)

  3. Click the route table for which you want to view detailed information, and then check the information on the detail page of that route table.

View route table details​

You can view the currently created route table list and basic information.

  1. Go to KakaoCloud console > Networking > VPC.

  2. In the Routing Table menu, select the target route table.

  3. Check detailed information for the route table on each tab.

    ItemDescription
    NameUser-defined name used to identify the resource
    IDUnique ID automatically assigned when the resource is created
    StatusCurrent operating status of the resource (for example, Active)
    Default route tableWhether the resource is the default route table
    VPCName of the VPC to which the resource belongs
    VPC IDUnique ID of the connected VPC
    Created atDate and time when the resource was created

Rename route table​

You can change the name of the route table.

  1. Go to KakaoCloud console > Networking > VPC.
  2. Click the Routing Table menu, and then select [⋮] > Rename for the route table whose name you want to change.
  3. Enter the information in the pop-up window, and then click the [Save] button.

Set default route table​

You can set the route table as the default route table.

  1. Go to KakaoCloud console > Networking > VPC.
  2. Click the Routing Table menu, and then select [⋮] > Set default route table for the target route table.
  3. Enter the information in the pop-up window, and then click the [Save] button.

Manage connected subnets​

Support for managing subnets connected to the route table will be added later.


Modify associations​

You can modify subnet associations connected to the route table.

  1. Go to KakaoCloud console > Networking > VPC.

  2. Click the Routing Table menu, and then select a route table.

  3. Click the [Modify association] button located at the top.

    vpc_htg_rt_kr2_17.png Manage connected subnets

  4. In the pop-up window, you can manage connected subnets.

    • If a subnet association is needed, click the [Connect] button to connect the subnet to the route table.
    CategoryDescription
    SubnetName of the subnet created in the VPC
    Subnet IDUnique ID of the subnet created in the VPC
    IP CIDR blockIP CIDR block information of the subnet
    Route tableInformation about the route table connected to the subnet
    - If a subnet association is needed, click the [Connect] button to connect the subnet to the route table
      ㄴ When a subnet is connected, the subnet communication path changes according to the routing information, so you must check the routing status in advance
    - [Connect] button enabled: Connected to another route table
    - [Connect] button disabled: Connected to the selected route table
    Route table IDUnique ID of the route table

Delete route table​

You can delete a route table.

info

Before deleting a route table, you must delete all resources that are using that route table. However, the default route table marked as Default: Yes cannot be deleted and is deleted together when the VPC resource is deleted.

  1. Go to KakaoCloud console > Networking > VPC.
  2. In the VPC menu, select [⋮] > Delete.
  3. Enter the delete confirmation text in the pop-up window, and then click the [Delete] button.

Add route​

You can add a new route.

  1. Go to KakaoCloud console > Networking > VPC.

  2. Click the Routing Table menu, and then select the route table for which you want to view routes.

  3. On the Routing tab, click the [Add route] button.

  4. Enter the information in the pop-up window, and then click the [Add] button.

    • To use a NAT instance, you must set the routing target to Instance. For more information, see Use NAT instances.
    CategoryDescription
    Target typeType of target through which traffic passes toward the destination IP
    - Local: Target for communication within the VPC internal network (destination IP: VPC CIDR IP)
    - Internet gateway: Target for communication with the internet (destination IP: IPs other than the VPC CIDR IP)
    - Instance: Target for sending traffic to a VM instance (destination IP: IPs other than the VPC CIDR IP)
    - Transit Gateway: Target for sending traffic to a Transit Gateway (destination IP: IPs other than the VPC CIDR IP)
    Target nameDisplays the resource name for the selected target type
    DestinationEnter the route destination IP based on the IP CIDR block
info
  • After selecting Instance as the type, you can add a route corresponding to the subnet CIDR of that VPC.
  • The link-local address range 169.254.0.0/16 used for KakaoCloud services and destination CIDRs included in that range cannot be added as routes.
  • Instances with two or more connected network interfaces cannot be specified as a target of the route table. Support will be added later.

Manage routes​

You can manage routes that belong to the route table.

caution

When routes are added, changed, or deleted, the communication path of subnets connected to that route table changes. Check the status of connected subnets before managing routes.

View route list and basic information​

You can view the currently created route list and detailed route information.

  1. Go to KakaoCloud console > Networking > VPC.

  2. Click the Routing Table menu, and then select the route table for which you want to view routes.

  3. On the Routing tab, view the currently created routes and their basic information.

    CategoryDescription
    DestinationRoute destination IP
    Target typeType of target through which traffic passes toward the destination IP
    Target informationName of the target through which traffic passes toward the destination IP
    StatusRoute status

Change route type​

You can change the target type, destination, and other settings of a route.

  1. Go to KakaoCloud console > Networking > VPC.

  2. Click the Routing Table menu, and then select the target route table.

  3. On the Routing tab, select [⋮] > Modify route for the route you want to change.

    vpc_htg_rt_kr2_13.png Modify route

  4. Modify the information in the pop-up window, and then click the [Modify] button.

Delete route​

You can delete a route.

  1. Go to KakaoCloud console > Networking > VPC.
  2. Click the Routing Table menu, and then select the target route table.
  3. On the Routing tab, select [⋮] > Delete route for the route you want to delete.
  4. Enter the delete confirmation text in the pop-up window, and then click the [Delete] button.