Ethereal Help

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willblackburn

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Joined
Nov 4, 2007
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6
Hi there, I have an assignment for University and it is conerning Ethereal.

We were given a basic run through of how to use it but now its the later part of the task that I am now stuck with.

I have captured and I have printed the file to a .txt file.

Now what I need to do i annotate each line that I have in the saved file.

I know that for the packets that I have printed the info will pretty much repeat itself for each different packet. I had to select and print info for the ARP and ICMP.

Could someone have a look over the file for me and possibly annotate each line for the 1 ARP and 1 ICMP?

Would be a great help as I cant find anything on the Ethereal site or anywhere else.

I have attached the file to this post. (y)
 

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TerryNet

Terry
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Joined
Mar 23, 2005
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81,401
I doubt that you will find many people on this site willing to actually do homework.

I think that once you have the information captured by Ethereal in the text file the rest of your assignment has nothing to do with Ethereal. I'm guessing that the purpose of annotating each line is to show that you can read the information captured. I'd also guess that this was covered in an earlier class.

I believe your packets are Internet Protocol; if so this may help: http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/ip.htm

That was the first thing I found with a web search for "internet protocol packets."
 

willblackburn

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Joined
Nov 4, 2007
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6
Hi there, thanks for your help.

I dont expect anyone to do it for me. Just need pointing in the right direction.

We had one 30 minute class on Ethereal and what it does. I can use it but its just understanding what each line of the packet print means. I have been searching but I have been searching the wrong stuff.

Yea annotated to show what it all means etc...

Thanks for you help and much appreciated. Will be sticking around here, seems like a really good resource.
 

willblackburn

Thread Starter
Joined
Nov 4, 2007
Messages
6
If someone could just look at the file and help me with what the lines mean?

I have done up to line 9 and I am now stuck on the next couple.

I can do some but its the ones that I have never heard of that is confusing me
 

willblackburn

Thread Starter
Joined
Nov 4, 2007
Messages
6
Hi thanks that helped.

I am nearly done but I just dont know how to annotate the following:

26. Hardware size: 6
27. Protocol size: 4
28. Opcode: request (0x0001)
29. Sender MAC address: CompaqHp_f9:e5:c3 (00:0b:cd:f9:e5:c3)
30. Sender IP address: 172.20.20.94 (172.20.20.94)
31. Target MAC address: 00:00:00_00:00:00 (00:00:00:00:00:00)
32. Target IP address: 172.20.20.76 (172.20.20.76)
 

JohnWill

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Oct 19, 2002
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See that, you can do your own homework if you try. :D

You can mark your own threads solved using the thread tools at the top of the page in the upper right corner.© :)
 
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