[Haifux] Lecture proposal : how Ethernet works ?

Shahar Dag dag at cs.technion.ac.il
Wed Feb 6 09:25:43 IST 2008

Hi Near

I will be glade to here such lecture.
It will be grate if you explain a bit about how to use ethereal.
Please noteice that sniffing of the cs network might not be welcomed by the 
system team of cs

shahar dag
----- Original Message ----- 
From: "Nir Abulaffio" <anir at research.haifa.ac.il>
To: "Haifux" <>
Sent: Tuesday, February 05, 2008 5:30 PM
Subject: [Haifux] Lecture proposal : how Ethernet works ?

> Since I have heared tens of lectures in Haifux, I propose to give a
> lecture on the only thing I can think will interest the audience:
> An explanation of how Ethernet networks work by giving examples using
> etherheal (today wireshark) which is an open source sniffer.
> I can show the bits in the header of every packet and how they help to
> bring the Internet to work. What I will talk about (if at all) depends on
> feedback I get to this mail.
> -- possible items --
> A basic network demonstration, from the point of view of the network,
> not from a specific host,
> with demonstrations using etherheal (today wireshark)
> 1. What is an ip packet ? and what is not (e.g. ARP)
> 2. Difference between tcp and udp. What is icmp,igmp.
> 3. Terms like MTU,TTL .
> 4. Examples of many different problems with actual examples from
>   a working environment such as a university campus.
> 5. What happens if MTU is wrong.
> 6. How does traceroute work.
> 7. What is a SYN attack.
> 8. What is the difference between a switch and a router.
> 9. What is the routing table in a computer, (a host) and what is the
>   routing table in a router. and a few words about routing protocols.
> ------
> Nir.
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