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Guido Trotter authored
If forwarding is enabled globally this is a no-op. If instead it's enabled only for some special interfaces where instance traffic has to go to/comes from (for example a gre tunnel) then it's useful to explicitely enable it for the instances interfaces as well. Signed-off-by: Guido Trotter <ultrotter@google.com> Reviewed-by: Michael Hanselmann <hansmi@google.com>
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