无法为 Google Cloud VM 的 IPv6 地址设置 PTR 记录

Question

I have a Google Cloud Compute Engine VM, it has a public ipv4 IP and a public external ipv6 IP. In the console, I input the PTR record: blabla.mywebsite.com. (the domain is already verified) both for ipv4 and ipv6 in the public DNS PTR record field, and ipv4 works normally, but ipv6 will return:

Invalid value for field 'resource.name': 'External IPv6'. Access config name is immutable.

screenshot of my config 1

screenshot of my config 2

Is that mean currently I can't add ptr records for an ipv6 IP? or is there any wrong with my configuration?

Answer 1

It worked by running a gcloud command in Cloud Shell.

gcloud compute instances update-access-config [INSTANCE_NAME] --public-ptr --ipv6-public-ptr-domain [DOMAIN_NAME]

Although this did add an IPv6 PTR record, in the console we can't see it.

Thanks @john-hanley for answering this.

Reference: https://cloud.google.com/compute/docs/instances/create-ptr-record