ip bros presentation by: amen ahmed. mario and luigi are here to help us find our way through the...
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IP BROS
Presentation by: Amen Ahmed
Mario and Luigi are here to help us find our way through the internet. Mario will
act as our browser and Luigi will act as our data.
Mario wants to pull up our company’s webpage LPCORP.COM
First, he will type our website name or URL into his favorite browser.
Some common web browsers are Internet Explorer, Fire Fox, Google Chrome and
Safari.
Before Mario can reach our company server to find our webpage, he
needs our address.
Mario’s computer will send a request for our IP
address.
The request will first travel through Mario’s
router, which will in turn route the request to his
Internet Service Provider (ISP)
Every computer on a network has a unique IP address similar to your
home address.
IP addresses can be difficult to remember.
They usually look something like this:
208.252.89.217
We use Domain Name System (DNS) Servers to
store IP addresses alongside simple to remember website names similar to a telephone book.
Mario’s ISP will then look through DNS
servers to find the IP address for the
requested URL and return the address to
Mario.
LPCORP.COM IP Address Request
Return IP Address(208.252.89.217)Receive IP Address(208.252.89.217)
Now that Mario has our IP Address, he can find
our company’s web server!
Before he can pull up a webpage or information from our servers, he will
have to make the connection.
To make the connection, he will have to go
through his ISP again, who will in turn connect
him to the internet. (network of networks)
To understand the process of sending and receiving data through a network,
we must first understand the Open Systems
Interconnection (OSI) model.
Application
Presentation
Session
Transport
Network
Data Link
Physical
Web browser; means to contact webserver
Converts files stored on servers to formats used to display them in web browser. (HTTP)
TCP connections to web servers. Breaks webpage into chunks and labels them.
Mean for locating webservers. Creates message addressed to server with return IP.
Request is sent to network card. Converted into a message.
Means to transmit the webpage request to default gateway.
Transports chunks of data across sessions.
Request for webpage via OSI model
Luigi is now on his way to our company server!
After traveling through the 7 Layer OSI model, he
will enter the router.
The router will read the IP addresses of the
envelopes his chunks were packaged in to and route him accordingly.
Receive webpage request
COMPANY ISP
When his ISP receives the request it will
connect him to our company’s ISP and then to our server to retrieve
our webpage.
ISP
ISP
COMPANY ISP
The webpage will then go back through the 7
layers of the OSI model, to our
company’s ISP, to the client’s IPS, to the client’s router and
then to Mario who will display it on the
client’s computer.
THE END
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