Skip to main content

Adding NAT IP Addresses

This page explains the Add NAT IP Address function on the OCX Portal.

Remarks​

  • Upon creating an Internet Gateway resource, one initial NAT IP address is provided automatically.
  • On the NAT IP address list page, you can check the Active Sessions for each NAT IP address; this value is updated every 5 minutes.
  • The recommended limit is approximately 62,000 sessions per NAT IP address.
  • If the number of sessions increases, please consider adding additional NAT IP addresses.

Preparation​

Please confirm the following before adding a NAT IP address:

  • Your User Role is either admin or user.
  • The target Internet Gateway resource is in either the available or attached status.

Procedure for Adding NAT IP Addresses​

  1. Log in to the OCX Portal.

  2. Click [Internet Gateways] from the left navigation bar.

  3. From the Internet Gateways page, click the target Internet Gateway resource.

  4. A detail screen will appear at the bottom of the page. Switch to the [NAT IP Address] tab and click the [Add NAT IP Address] button.

  5. The screen will switch to the NAT IP address addition steps. Configure the input items as follows and click [Add]:

    • Quantity
      • Enter the number of NAT IP addresses you wish to add.
      • You can enter an integer from 1 to 4.
      • Note: The maximum number of NAT IP addresses assignable to a single Internet Gateway resource is 5, including the initial NAT IP address automatically assigned at creation.
      • Note: NAT IP addresses are automatically assigned by the system and cannot be specified by the customer. You can check the assigned addresses after they have been added.

  6. A confirmation pop-up will appear. Review the settings and click [Add].

  7. The NAT IP Address list will be displayed at the bottom of the screen, showing the newly added NAT IP addresses.

This completes the addition of NAT IP addresses.

Notes​

  • When adding a NAT IP address, all existing NAT sessions will be cleared.
  • Consequently, a communication interruption will occur for all currently active NAT IP addresses on the target Internet Gateway resource.
  • Please be cautious if there are applications currently communicating via NAT.
  • The duration of this interruption depends on the behavior of the application as it disconnects and attempts to reconnect sessions.