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IPv6 Enabled Check


We check if IPv6 is enabled or not. If we determine that IPv6 has been disabled, we check to see if it's fully disabled as recommended. We determine if the IPv6 is fully disabled by checking to see if we have an IPv6 Address available on the NIC and that it matches what is found in the registry at SYSTEM\CurrentControlSet\Services\TcpIp6\Parameters\DisabledComponents.

If both places don't have IPv6 enabled/disabled properly a warning is thrown. This can cause communication issues if not properly disabled.

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Additional resources:

Disabling IPv6 And Exchange – Going All The Way

Guidance for configuring IPv6 in Windows for advanced users