Transcript TCP/IP

Welcome to HyperLearning!
Network+
• Instructor Info
10/22/2007
– Joshua Newell
e. [email protected] –
c. 757-675-8467
• Certifications
–
–
–
–
B.S.C.S College of William and Mary, 2004
Comptia A+, 2000
Comptia Network+, 2007
1/2 CTT+, 2007
• Work Experience
– Taught A+, Network+, MS Office, Programming Logic,
& Command Line for two years at a competitor
– Worked for two years doing software implementation
and consulting for a government contractor in DC
– Have been teaching for HLT since May
– On-call tech and IT consultant for the last 8 years
Class Schedule
• Mondays, Wednesdays, & Fridays 5:30-10pm
• 10/22 – 11/11
– Oct 22, 24, 26, 29; Nov 2, 5, 7, 9, 11*(8:30am-1)
• Unless I state otherwise, every class will go until
at least 10pm.
• Please do not start packing up until I dismiss class.
• There is a ~2 week gap between the Network+ and
the MCDST start in order for you to prepare for and
take your Network+ cert
Student Introductions
• Tell me about yourself
– Work experience
– Current employment
– IT Background
– What kind of computing resources do you
have access to?
– Rate yourself on a scale of 1-10 on your
Network+ type skills
-Classroom/Building orientation
• Bathrooms
• Cafeteria and Smoking Area
• Snacks - Anything in a package (soda, crackers,
granola bars, etc) is 50 cents
• Anything not in a package (fruit, pastries, coffee,
etc) is FREE
• Coffee Poll
• Breaks - Ask for one if you need it, or I'll call one
when I do. Try to keep it under 10 minutes
Cell Phone Policy
• Please set your phones to vibrate or mute
• I don’t mind if you answer your phone, but
please take it into the hallway
• The first person’s phone that rings is a
warning to everyone else- Mute your
phone!
• The second person’s phone that rings
buys pizza for the class – Papa John’s
Disk Drives
• NOT HOT SWAPPABLE
• FRAGILE / HANDLE WITH CARE
• Get key from front at beginning of class.
Make sure the computer is OFF. Insert
the “A" (red) disk
• At end of class, shutdown your machine.
Make sure it is OFF. The n, turn the key
and remove the disk.
• Homework
Expectations
– There is homework. Consider this class "computer college"
– If you don't do the homework, you will not pass your certs.
•
Home Classroom
– You need two computers with NICs and a switch/hub/router to
practice on.
– Needs to be breakable- Not the machine your
taxes/homework/Great American Novel are on
– You can get these for cheap to free
• Attendance
– Attendance is mandatory
– Please sign in on the roster when you arrive
– If you miss more than two classes you will not receive a
certificate of completion
– If you're going to be late, please call me and let me know what
time you will make it so I can plan to start class accordingly
– If you don't come to class, you will not pass your certs.
• Tutoring
– Please ask for one-on-one tutoring outside of class if you need
help.
– I want you to pass your cert.
Goals
• What's your goal for this class? What are
your goals for intermediate future?
• Goals vs Dreams
• My goal is to get you certified.
• We’ll give you the tools: books, lectures,
Transcenders, PDF tests, answers to questions
via phone and email, and hands-on training
through labs.
• If you’re in this class, it means you probably
already have your A+. If you have already
passed one cert then you know what you need
to do to succeed and you know that it’s possible.
Lab0 - Fix Computer Names and Join the Domain
• Logon as “Administrator” - Password is “!Pass1234”
• Restart the computer if it asks you to and log back in
• Right click My Computer->
Properties->
Computer Name->
Change->
enter "Computer##"
where ## is the two-digit number assigned to your computer (i.e.
Computer01, Computer02, etc.)
• Click “Member of” -> Domain
Enter “Classnet” and hit OK
• Logon as User## where ## is the two-digit number
assigned to your computer (i.e. User01, User02, etc.)
with password !Pass1234
• OK….”Welcome to the Classnet Domain” - Restart
TCP/IP
The lingua franca of the Internet
A Very Brief History of TCP/IP and
the Internet
• Origins of TCP/IP start in the 1960s at MIT and
with the creation of ARPANET
• The original versions of TCP/IP as we know it
today were created in the 1980s
• In 1983, the DoD mandated that all of their
computer systems would use the TCP/IP
protocol suite for long-haul communications
• ARPANET started with four nodes in 1969 and
grew to just under 600 nodes before it was split
in 1983.
• ARPANET grew smaller and smaller during the
late 1980s as sites and traffic moved to the
Internet, and was decommissioned in July 1990.
History of TCP/IP and the Internet
(continued…)
• In 1986, the National Science Foundation
(NSF) built a backbone network dubbed the
NSFNET to interconnect four NSF-funded
supercomputer centers
• Originally for non-commercial use, the
NSFNET eventually became the backbone of
“the Internet”
Dramatic Growth of the Internet
TCP/IP – What is it?
• Transmission Control Protocol/Internet Protocol
• A suite of communications protocols
• TCP/IP uses several protocols, the two main
ones being TCP and IP.
• TCP/IP is built into the UNIX operating system
and is used by the Internet, making it the de
facto standard for transmitting data over
networks.
• Even network operating systems that have their
own protocols, such as Netware, also support
TCP/IP
TCP/IP – What is it?
• TCP/IP is roughly based on the OSI (Open
Systems Interconnection) Model
Math Review
• Decimal – Base 10
– 0,1,2,3,4,5,6,7,8,9
• Binary – Base 2
– 0,1
Decimal Math
•
•
•
•
1
10
100
1000
Ex.
1,000s
__
100s
__
10s
__
1s
__
1
__
2
__
9
__
5
__
1X5
10 X 9
100 X 2
1000 X 1
1000
+
200 +
90 +
5
=
1295
Binary Math
•
•
•
•
1
10
100
1000
=
=
=
=
1
2
4
8
Ex.
8s
__
4s
__
2s
__
1s
__
1
__
1
__
1
__
1
__
1X1
2X1
4X1
8X1
8
+
4
+
2
+
1
=
15
Binary to Decimal Example
•
•
•
•
1
10
100
1000
=
=
=
=
1
2
4
8
Ex.
8s
__
4s
__
2s
__
1s
__
1
__
0
__
1
__
0
__
1X0
2X1
4X0
8X1
8
+
0
+
2
+
0
=
10
Decimal to Binary
• Example: 121d to Binary
• Write out the places up to the number you
are converting
128
121-64=57
57-32=25
25-16=9
9-8=1
1-1=0
64
1
__
32
1
__
16
1
__
8
1
__
4
0
__
2
0
__
1
1
__
Practice
•
Convert Binary to Decimal
1.
2.
3.
4.
1011
10101
11111
10000
Practice
•
1.
2.
3.
4.
Convert Decimal to Binary
7
11
23
123
http://www.hyperlearn.com/documents/will_harpers_tcp_ip_subnetting_cheat_sheet.htm