Traceroute

Huawei is using UDP as shown below in the pcap

Huawei is using UDP

traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol, mechanism of this protocol as following, The end user Sends a packet from the source to destination with TTL value= 1 and the first hop decrease this value to be = 0 plus this interface sent an exceeded TTL message inform the source that this ICMP packet decreased to zero so the source will send packet with the oldest value =1 plus one to be =2 and so on to arrive at the destination address.

I am glad that our responses have been helpful. Thank you for marking this question as solved. This will help other participants in the community to identify discussions which have helpful information. These forums are excellent places to ask questions and to learn about networking. I hope to see you continue to be active in the community.

ICMP packets in the preceding figure are used to advertise information about intermediate devices.