| | ... | remote_host1_ip=3ffe:5f::1 | remote_host2_ip=3ffe:5f::2
| | Then Send IPv6 echo request packet and verify headers
| | ... | ${tg} | ${tg_if1} | ${dut1} | ${dut1_if2}
| | ... | remote_host1_ip=3ffe:5f::1 | remote_host2_ip=3ffe:5f::2
| | Then Send IPv6 echo request packet and verify headers
| | ... | ${tg} | ${tg_if1} | ${dut1} | ${dut1_if2}