Ques-7 : How Traceroute Works ? | Networking Interview Preparation Series

In this video we talked about one of the most important "Traceroute" command for network Engineers. To understand why and what behind traceroute, you need to understand concept of Time to Live, ICMP protocol and some part of UDP. Once again the video length is more than an hour, because true knowledge seeks patience :). In this video we talked about,

1. Why and what behind traceroute
2. How traceroute works and how we can use it in troubleshooting
3. Wireshark capture of traceroute.
4. Concept of Time to Live
5. Details of ICMP protocol
6. Little bit of UDP

The intent of this video series is not to reveal the questions of networking interview but to understand the networking fundamentals and build your network foundation knowledges. Believe me, if you want to build you networking basics, you need to spend some time and that is why most of my video are of 45 minute to an hour.

We offer various courses including following,

All of my course are available in both English and Hindi.

Below is the list for courses which we offer,
1. SD-WAN
2. SD-Access
3. Network Security
4. OSPF-BGP-MPLS from Scratch to Design
5. Routing Fundamentals
6. Network Interview Preparation Series.

You can connect me using following medium,
2. Phone Number: 86185 35205
3. WhatsApp: [phone]

[HumHindustani]

I have used tracert so many times without knowing inners of what is going on…. Now everything makes sense.

[kevins]

OMG this is a master piece and crystal clear
great mate ..!!

[rajindersinghbargari]

very well Vishnu, even after my long experience, I learnt it well today.

[RiskyRiskForRiskers]

Very awesome training. Many thanks for that. I really mean it. I can't find the wireshark files.

[javieranayapacheco]

You are amazing! One thing that I maybe miss: In the tracerout example if R3 does not have a route to R4, will R3 send an ICMP destination unreachable to R1? here the TTL expired is not the problem. Thanks again

[bindumadhabghosh]

Sir, plz make one video on : if some user getting slow speed then what is the issue and how fix it

[samsam]

Hi Vishnu, amazing video series you have created!!
Have you also created a video for DNS concepts? i dint find it easily

[kevins]

I usually get * (star) after several hop's
while doing Traceroute, some device trying to hide their IP ?

[soorajrajendran]

so traceroute is an application layer protocol ?