OLCNE/OCSK: Services Fail if IPV6 is Disabled (Doc ID 2404109.1)

Last updated on FEBRUARY 02, 2024

Applies to:

Oracle Cloud Native Environment - Version 1.0 and later
Linux x86-64

Kubernetes pods related to flannel network, dns will not work when ipv6 is disabled, we can see following errors in the /var/log/messages.

docker.service in case of Oracle Container Services for use with Kubernetes will also throw errors when it is tried to disable ipv6 forwarding.

New setup with Kubernetes v1.9.1 on OL 7.4, no changes to the kubernetes environment.

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Symptoms

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