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According to this blog one has to change the docker daemon:

/usr/bin/dockerd --insecure-registry 172.30.0.0/16 -H fd://

but I wonder why the error occurs and how to fix it properly?

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This error happens because the oc cluster up command spawns a Docker registry. The 172.30.0.0/16 IP range is probably corresponding to your Docker bridge network. As the registry will run in a container with an unpredictable IP address, you must indicate the IP range (--insecure-registry 172.30.0.0/16).

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