-| | And Vpp Route Add | ${dut1} | ${raddr_ip4} | 8 | ${dut2_if1_ip4}
-| | ... | ${dut1_if2}
-| | And Vpp Route Add | ${dut2} | ${laddr_ip4} | 8 | ${dut1_if2_ip4}
-| | ... | ${dut2_if1}
+| | And Vpp Route Add | ${dut1} | ${raddr_ip4} | 8 | gateway=${dut2_if1_ip4}
+| | ... | interface=${dut1_if2}
+| | And Vpp Route Add | ${dut2} | ${laddr_ip4} | 8 | gateway=${dut1_if2_ip4}
+| | ... | interface=${dut2_if1}