<xs:restriction base="xs:string"> <xs:whiteSpace value="collapse"/>
<xs:enumeration value="MASK_DEFAULT"/>
<xs:enumeration value="MASK_NONE"/>
<xs:enumeration value="MASK_ALL"/>
<xs:enumeration value="BUILTIN_UNICAST"/>
<xs:enumeration value="BUILTIN_MULTICAST"/>
<xs:enumeration value="USER_UNICAST"/>
<xs:enumeration value="USER_MULTICAST"/>
<xs:enumeration value="BUILTIN_UNICAST | BUILTIN_MULTICAST"/>
<xs:enumeration value="BUILTIN_UNICAST | USER_UNICAST"/>
<xs:enumeration value="BUILTIN_UNICAST | USER_MULTICAST"/>
<xs:enumeration value="BUILTIN_MULTICAST | USER_UNICAST"/>
<xs:enumeration value="BUILTIN_MULTICAST | USER_MULTICAST"/>
<xs:enumeration value="USER_UNICAST | USER_MULTICAST"/>
<xs:enumeration value="BUILTIN_UNICAST | BUILTIN_MULTICAST | USER_UNICAST"/>
<xs:enumeration value="BUILTIN_UNICAST | BUILTIN_MULTICAST | USER_MULTICAST"/>
<xs:enumeration value="BUILTIN_MULTICAST | USER_UNICAST | USER_MULTICAST"/>
<xs:enumeration value="BUILTIN_UNICAST | BUILTIN_MULTICAST | USER_MULTICAST | USER_MULTICAST"/>
</xs:restriction>