| | ... | ${dut1} | ${dut2} | ${dut1_if2_ip4} | ${dut2_if1_ip4} | ${dut1_if2}
| | ... | ${dut2_if1} | ${n_tunnels} | ${encr_alg} | ${encr_key} | ${auth_alg}
| | ... | ${auth_key} | ${laddr_ip4} | ${raddr_ip4} | ${addr_range}
| | ... | ${dut1} | ${dut2} | ${dut1_if2_ip4} | ${dut2_if1_ip4} | ${dut1_if2}
| | ... | ${dut2_if1} | ${n_tunnels} | ${encr_alg} | ${encr_key} | ${auth_alg}
| | ... | ${auth_key} | ${laddr_ip4} | ${raddr_ip4} | ${addr_range}