EC2 > Enums > InterfaceProtocolType InterfaceProtocolType¶ Enum Class¶ InterfaceProtocolType ¶ Bases: UnknownEnumMixin, StrEnum Attributes¶ GRE class-attribute instance-attribute ¶ GRE = 'GRE' VLAN class-attribute instance-attribute ¶ VLAN = 'VLAN'