self.vapi.nat44_interface_add_del_feature(
sw_if_index=self.pg0.sw_if_index,
flags=VppEnum.vl_api_nat_config_flags_t.NAT_IS_INSIDE, is_add=1)
self.vapi.nat44_interface_add_del_feature(
sw_if_index=self.pg0.sw_if_index,
flags=VppEnum.vl_api_nat_config_flags_t.NAT_IS_INSIDE, is_add=1)