list, per chapter:
DETER net testbed
get/use an account
access with ssh
MAC address assignments
- Intro to the IP Protocols
- IPv4 version
- IPv6 version
IP packet delivery
Real world DSL
- a DSL order
Network Administrator's Guide
with telnet and netcat
Sockets: socket programming
Sockets: sample programs
- letter-upgrader server
- letter-upgrader's client
- client for echo-back server
- client for file-send
nmap: Ethical Hacker article
echo (port 7)
(miscellaneous - see
course outline for
technologies (Chs. 12+16 abridged)
Wires, hubs, switches
dhcpd (address server)
Samba (MS fileshare
Networks: modems & Point-to-Point Protocol
Narrated slide presentations
Section 1721 9:00a - 12:05p Sat Bus 263
will be used extensively to communicate with you.
Announcements, grade reports, and assignments will be posted here.
Please access the website from any SMC computer lab. Alternatively,
it can be viewed from an internet-connected browser anywhere. You
are responsible for awareness of the information posted here.
see/do - the homework column of course
outline, section 4 ("ethernet frames"). due on sputnik
in the "assignments" subdirectory of your home directory end-of-day
read - readings shown in the course outline through section
4; also read
forward to succeeding sections as you have time, to prepare for upcoming topics.
listen - to Bob Metcalfe talk about inventing
RFC process -
how protocols get created. Here is a
current example, HTTP
2 which was published as an RFC in May, 2015. See in particular
timeline that has led it to this point. (2/24)
of Microsoft Network Monitor courtesy of a former
student. Compare the interface with Wireshark's.
Course outline -
with approximate weekly topic coverage corresponded to related
readings, homework assignments, and in-class slides I will use.
do the reading and homework shown in the "Reading" and
"Homework" columns of the course outline's topic #1.
Cover art on Tannenbaum textbook:
What is it??
asks the switchboard operator. The switchboard is a board. It's for
switching. Switching changes a circuit between you and somebody. It can
complete a circuit to your Aunt Bheulah in Iowa City so you can
thank her for the knit socks. After you hang up if you want to call
your uncle in Waco you'll need to switch circuits, to get a circuit
to him instead of her. That's what the operator does for you. The
"switch"ing in "switch"board is circuit
switching. Nowadays in computer networks it's not circuit switching
anymore, it's packet switching.
Functional layering - the famous "Open Systems
Interconnect" model is depicted below. Somebody once had the
idea that maybe there could be a way to get independent computer
systems of different types to be able to exchange information with
one another. The diagram blueprints the idea for "how in the
world are we going to make that work??" That idea is the
subject of this course.
First-day administrative information you will
need to know:
- explaining use of class computers.
A Remote Unix system
will be created for you.
Distributing files from sputnik to the class as a whole,
publicly - the above file transfer discussion describes file movement
to and from your own home directory, exclusive to you. Sometimes I will
want to have someplace to put a file so everybody can get to it and
download it. When I do that, here's
how to download them.
Using ssh (secure shell). ssh is an important tool you will use
for interacting with remote computers. For that you will need an ssh
client. There are a number of ssh
Running linux at home.
Slides available online - for
most if not all slides I will show in class. Links to them can be
found in the "Slides" column of the course outline.
Course-long textbook reading -
a chapter-by-chapter list ( 6th edition,
5th edition ). The textbook is divided into chapters and they in turn into numbered
sections. The list tells you which sections to read for this
course when chapters are assigned. For example if I assigned chapter
10 and it had 17 sections, if this list specifies "10.1-100.5,
10.7, 10.12-17" it means I didn't feel sections 10.6 nor
10.8-11 were relevant enough so I only list the balance of the
chapter. Read unlisted portions for your own interest if you wish,
but the listed sections are what's officially assigned to you.
Textbook - Computer
Networks and Internets,
sixth edition, Douglas Comer, Pearson Prentice Hall , 2015.
Wireshark - is an excellent free packet capture utility.
What is a packet, and why caputre it? We'll talk about that later. I
will ask you to install and use Wireshark later in the semester,
assuming you have a linux or windows computer available on which to
do so. Please visit Wireshark's
Opportunity - I'm happy to tell you
that as a class we have the fortunate invitation to use a network testbed
facility operated by USC/ISI called DETER. I will request individual DETER
accounts for you; when they are created you will get an email message with
info and credentials. In class I will describe DETER and how we will use it.
This will come some weeks into the semester. In the meantime, you
can explore the links under the heading "DETER net testbed" at
left if you like.
hath God wrought?"
May 24, 1844
Watson come here, I want to see you."
March 10, 1876
October 29, 1969