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Presenters

Muhammad Aamir irshad 2686

Adil Hassan 2602

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presentation on

Ports in networking

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What is port

In computer networking, the term portcan refer to physical or points.

Port is a place or on your computer that information goes into a

computer .

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Ports types

Physical ports

Logical ports

TCP and UDP ports

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What is tcp and udp

We need to a little concept about TCP and UDP . Before understaand UDP ports

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UDP

UDP(user datagram protocol) sending the data packages into a little package

UDP releases release these little packages on the network

with the hopes that it will get to the right place

There is no guarantee of transmission.

this method of transmission has very low overhead

popular to use for services that are not that important to work o

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Example of UDP

When any SMS send there is no connection established. And not sreceiving device is on or off. Rather it SMS send on network. Therewarranty that data receive.

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TCP

TCP (Transmission control protocol)

the sending device create a connection to receiving device

stays connected for the duration of the transfer.

There is guarantee that the data has arrived safely and correct

disconnect the connection after the transmission.

This method of transferring data tends to be quicker and more

puts a higher load on the communication devices as it has to mconnection and the data going across it.

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Example of TCP

A real life comparison to this method would be to pick up the pfriend. You have a conversation and when it is over, you both hreleasing the connection.

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TCP and Udp ports

Every computer have an ip address on internet.

IP address is used to recognize your particular computer

Using the IP address It accepts that information by using TCP

There is many ports on that IP address

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TCP and Udp ports (Continue)

If sending device use UDP port then it recommending that receuse the UDP port.

If sending device use TCP port then it recommending that rece

the TCP port.

Once an application binds itself to a particular port, that port cby any other application. It is first come, first served

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Figure . IP address with Ports

0 1 2 3 4 5 .. .. .. .. .. .. .. .. 65531 65532 65533 6553

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Port range

The port number divided in three range

a. Well Known Ports

b. Registered Ports

c. Dynamic and/or Private Ports.

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Well Known Ports

The Well Known Ports are those in the range 01023.

They widely use for network services.

Port 0 and 1023 are reserved . Can not be used

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Registered Ports

The Registered Ports are those in the range 1024

49151.

They are assigned by IANA.

On most systems, registered ports can be used by ordinary use

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Dynamic and/or Private Ports.

The Dynamic and/or Private Ports are those in the range 49152

ports are not used by any defined application.

This range is used for custom or temporary purposes and for auallocation of ephemeral ports.

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List of some daily use ports .

1863 TCP MSN messenger

1755 UDP/UDP Microsoft Media Servic

(MMS, ms-streaming)

2302 UDP Online gaming

25 TCP,UDP SMTP - used for e-mail

routing between

mail servers E-mails

513 TCP Login

80 TCP HTTP