IPv4 and IPv6 filter policy of scope embedded must have the same type as the main filter policy of scope template, exclusive or system embedding it:
If this condition is not met the filter cannot be embedded.
When embedded, the main filter policy cannot change the filter type if one of the embedded filters is of a different type.
When embedded, the embedded filter cannot change the filter type if it does not match the main filter policy.
Similarly, the system filter type must be identical to the template or exclusive filter to allow chaining when using the chain-to-system-filter command.