+| | ...
+| | ... | *Arguments:*
+| | ...
+| | ... | - tg_node - TG node. Type: dictionary
+| | ... | - src_int - Source interface. Type: string
+| | ... | - dst_int - Destination interface. Type: string
+| | ... | - src_ip - Source IP address (Optional). Type: string
+| | ... | - dst_ip - Destination IP address (Optional). Type: string
+| | ...
+| | ... | *Return:*
+| | ...
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Send ICMPv4 bidirectionally and verify received packets \| ${nodes['TG']} \
+| | ... | \| ${tg_to_dut_if1} \| ${tg_to_dut_if2} \|
+| | ...
+| | [Arguments] | ${tg_node} | ${int1} | ${int2} | ${src_ip}=192.168.100.1 |
+| | ... | ${dst_ip}=192.168.100.2
+| | Send ICMP packet and verify received packet | ${tg_node} | ${int1} | ${int2} |
+| | ... | ${src_ip} | ${dst_ip}
+| | Send ICMP packet and verify received packet | ${tg_node} | ${int2} | ${int1} |
+| | ... | ${dst_ip} | ${src_ip}
+
+| Send ICMPv6 bidirectionally and verify received packets
+| | [Documentation] | Send ICMPv6 echo request from both directions,
+| | ... | from interface1 to interface2 and
+| | ... | from interface2 to interface1.
+| | ...
+| | ... | *Arguments:*
+| | ...
+| | ... | - tg_node - TG node. Type: dictionary
+| | ... | - src_int - Source interface. Type: string
+| | ... | - dst_int - Destination interface. Type: string
+| | ... | - src_ip - Source IP address (Optional). Type: string
+| | ... | - dst_ip - Destination IP address (Optional). Type: string
+| | ...
+| | ... | *Return:*
+| | ...
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Send ICMPv6 bidirectionally and verify received packets \| ${nodes['TG']} \
+| | ... | \| ${tg_to_dut_if1} \| ${tg_to_dut_if2} \|
+| | ...
+| | [Arguments] | ${tg_node} | ${int1} | ${int2} | ${src_ip}=3ffe:63::1 |
+| | ... | ${dst_ip}=3ffe:63::2
+| | Send ICMP packet and verify received packet | ${tg_node} | ${int1} | ${int2} |
+| | ... | ${src_ip} | ${dst_ip}
+| | Send ICMP packet and verify received packet | ${tg_node} | ${int2} | ${int1} |
+| | ... | ${dst_ip} | ${src_ip}