ERROR_CLUSTER_INVALID_IPV6_TUNNEL_NETWORK: meaning and diagnosis

Status / error code:		Category:

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Source:		Operating System:
Description: ERROR_CLUSTER_INVALID_IPV6_TUNNEL_NETWORK means an IPv6 tunnel address resource does not match a valid cluster network or its dependent IP resource.

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ERROR_CLUSTER_INVALID_IPV6_NETWORK	ERROR_QUORUM_NOT_ALLOWED_IN_THIS_GROUP

ERROR_CLUSTER_INVALID_IPV6_TUNNEL_NETWORK

ERROR_CLUSTER_INVALID_IPV6_TUNNEL_NETWORK means an IPv6 tunnel address resource does not match a valid cluster network or its dependent IP resource. The tunnel resource cannot be validated in the current network topology.

Validate both the tunnel resource and the dependent IPv6/IP resource because the error can reflect their relationship, not just one address. Cluster network discovery should agree with the topology represented by those dependencies.

What to check

Check the tunnel resource dependencies and the underlying IP Address resource first.
Verify that the tunnel endpoint and IPv6 route are available on every possible owner node.
Use cluster logs to determine whether the failure occurred during online, move, or validation.

Get-ClusterResource
Get-ClusterNetwork

Microsoft: Get-ClusterLog

Microsoft: Validate hardware for a failover cluster

Microsoft: FailoverClusters PowerShell module

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