Adding DNAT IP Addresses

This page explains the Add DNAT IP Address feature in the OCX Portal.

Remarks

• No DNAT IP address is initially assigned when the XaaS Connection resource is created.
• When adding a DNAT IP address, you specify the post-translation IPv4 address in prefix format. The only prefix length that can be specified is /32.
• DNAT IP addresses are not available for XaaS Connections that use IPsec Parameter (Connection Method: Fixed).
• DNAT IP addresses apply only to XaaS Connection resources purchased on or after September 8, 2026.
• On the DNAT IP Address list page, you can check the number of active sessions for each DNAT IP address. This value is updated every 5 minutes.
• As a guideline, approximately 62,000 sessions are supported per DNAT IP address.
• If the number of sessions approaches this limit, consider adding additional DNAT IP addresses.

Prerequisites

Before adding a DNAT IP address, please confirm the following:

• Your User Role is either admin or user.
• The target XaaS Connection resource is in either the available or attached state.

Procedure for Adding DNAT IP Addresses

1. Log in to the OCX Portal.

2. From the left navigation bar, click [XaaS Connections].

3. From the XaaS Connections list page, click the target XaaS Connection resource.

4. In the lower half of the OCX Portal screen, click the DNAT IP Addresses tab, then click [+] Add DNAT IP Address.

5. The DNAT IP address addition screen will be displayed. Configure the following item and click [Add].

   • Post-Translation IPv4 Prefix
     • Enter, in CIDR notation, the IPv4 address to be assigned as the post-translation address for the DNAT function.
     • Only a /32 prefix length can be specified.

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

7. The DNAT IP Addresses list page will be displayed, and the newly added DNAT IP addresses will appear under DNAT IP Addresses.

This completes the addition of DNAT IP addresses.