:param out2in_only: if 1 rule is matching only out2in direction
:param tag: Opaque string tag
:param is_add: 1 if add, 0 if delete (Default value = 1)
:param out2in_only: if 1 rule is matching only out2in direction
:param tag: Opaque string tag
:param is_add: 1 if add, 0 if delete (Default value = 1)