Solved

TCPDUMP question

Posted on 2004-09-08
4
472 Views
Last Modified: 2010-04-22
Is there any advantage in displaying hex output? ( -x switch)?
Currently I use tcpdump with the -n -e -s 1514 switches.  Does viewing hex have any advantages? Are you viewing the actual encapsulated data when you do this?
Thanks
0
Comment
Question by:dissolved
  • 2
4 Comments
 
LVL 51

Assisted Solution

by:ahoffmann
ahoffmann earned 50 total points
ID: 12008271
-x will show you non-printables too

> Are you viewing the actual encapsulated data when you do this?
if you mean encapsulated in IP or TCP or UDP or ARP, yes
0
 
LVL 4

Accepted Solution

by:
net_sec_guru earned 450 total points
ID: 12009330
tcpdump –x looks at packages in hex format

tcpdump –X looks at packages in hex and Ascii format

I use the -X option myself... so yes, there is an advantage to using at as I get to see hex & ascii characters...
0
 

Author Comment

by:dissolved
ID: 12009417
Thank you. What is the point of viewing the hex and ascii?  Does it give any pertinent information?  
0
 
LVL 51

Expert Comment

by:ahoffmann
ID: 12010272
> Does it give any pertinent information?
depends on your definition of that ;-)
simply testit it out
0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

BIND is the most widely used Name Server. A Name Server is the one that translates a site name to it's IP address. There is a new bug in BIND (https://kb.isc.org/article/AA-01272), affecting all versions of BIND 9 from BIND 9.1.0 (inclusive) thro…
Fine Tune your automatic Updates for Ubuntu / Debian
This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory. NOTE: For Outlook 2016 and 2013 perform the exact same steps. Open a new email: Click the New email button in Outlook. Start typing the address: …
This is a video describing the growing solar energy use in Utah. This is a topic that greatly interests me and so I decided to produce a video about it.

932 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now