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Acn PR5

The document outlines the process of capturing and analyzing ICMP packets using tcpdump and ping commands to assess network connectivity, latency, and packet loss. It includes practical questions for educators to evaluate students' understanding of ICMP packet types and troubleshooting techniques. Additionally, it highlights the significance of Time Exceeded messages in network diagnostics.

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9 views3 pages

Acn PR5

The document outlines the process of capturing and analyzing ICMP packets using tcpdump and ping commands to assess network connectivity, latency, and packet loss. It includes practical questions for educators to evaluate students' understanding of ICMP packet types and troubleshooting techniques. Additionally, it highlights the significance of Time Exceeded messages in network diagnostics.

Uploaded by

snehaskalynkar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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B|| N|| M|| | I

Course Ca
Advance Computer Network

sudo tepdump -ieth0 icmp


Initiate a ping request:
ping 8.8.8.8
in real-time.
I. tcpdump willdisplay the captured packets
Step 3: Analyze the Packets
(e.g., Type 8 for Echo Request,
1ype OTor Ec
Look for Type and Code values
understand packet litespan.
Check TTL (Time-To-Live) values to
Examine checksums to ensure integrity.
diagnose network
issues.
to
Identify packet delays or dropped responses

VII
Resources required (Additional)

Sr. Name of Broad


Quantity Remarks (lf any).
No. Resource Specification

VII Conclusion
*..his..pI9sha.Confiumed...ICM.vs.Kito..

..t.ale..ia..n20dk.diag.ocsHc..ay...Capturing,.
.And.analy.zing,..pinq.p0.cke.ts..to.effactvely.
assesS netwosk Connectity, latency and
Packet loss.
IX
Practical related Questions
Note: Below given are few sample questions for reference. Teachers must design m
questions to ensure the achievement ofidentified CO.
1. Which command in tcpdump captures only ICMPv4 packets?
2. What steps should you follow to filter ICMPv4 traffic in Wireshark?
3. How can you differentiate between an Echo Request and
an Echo R
Wireshark?

Maharashtra State Board of Technical Education


('K'Scheme)
Course Code 3S321
Advance Computer Network

A What information does an ICMP Destination Unreachable packet provide?


s Why is the Time Exceeded message useful in network troubleshooting?

..84do..Cd9me.icmp

ij Start.o..packet Capt
ii) In the display Gller bar at he FOP type..
iCmp
packet
iiy press Ente to appls the GHed The
ackets
li6t will no w oniy ghow TCMPV4

Bu.inseecing.he.Iee..ield.. in.he..
ICMP headex detailS

" EchoCping) Requ est Has. an TCMP Of

" ECho Cping) Repls : Has anTCMP THPe


OF O...

Maharashtra State Board of Technical Education (°K' Scheme) 41


Advance Computer Network
Course Code

.4I.Provdes he reacon for the delivery


....ulure(e:9. Neuosk, Host, ot po3t nreachad
indCated by aCode ield) and
the heades of the inludes
falled So the origina) packet. that
Source Can identify he
ConnecHon

..Thee Time
..for Exceeded" messgge. iG eSSenha
thetraceroute
Packets uhlits. By gending
wth incrermentay .......
TTL Ualues,
tocerod te uces increa6ing..
the Time
Exceeded ..Mesages
T0Uer to map the Sent back by each
fath a pocret eire hop-by
Hre hop -bs hop
takes to g destination

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