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  • 1.  VPC: Changing PTR records for Floating IPs?

    Posted 05/29/26 02:36 PM

    How can I get the PTR records changed for Floating IP addresses in VPC?


    I have several new virtual machines in VPC and now need to change the PTR records for the Floating IPs. In the Classic Infrastructure, I was able to do that myself. Last year, I found that in VPC I had to submit a support case and request the PTR records, so I tried that again. My case was updated to point me to the IBM Cloud AI, and this forum for help.




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    Dan Campbell
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  • 2.  RE: VPC: Changing PTR records for Floating IPs?

    Posted 14 days ago
    Edited by Allan Solomon Mejia 14 days ago
    Hello Daniel,
    For IBM Cloud VPC, reverse DNS (PTR) records for Floating IPs aren't currently self-service the way they were in Classic Infrastructure. The supported approach is to open an IBM Cloud Support case and request the PTR record update for each Floating IP.
     
    When submitting the request, include:
    • Floating IP address(es)
    • Desired FQDN (PTR target)
    • Confirmation that the corresponding forward (A/AAAA) DNS record already exists and resolves back to the same IP (forward-confirmed reverse DNS)
     
    If Support redirected you here, it may be because they need additional information or the request wasn't routed correctly. I'd recommend reopening or updating the support case with the details above and referencing that the request is specifically for a VPC Floating IP reverse DNS (PTR) update.



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    Allan Solomon Mejia
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