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What is a source port number?

Updated: 11/8/2022
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14y ago

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Source Port number is the unique application identification number of the service/application at sender side which sending data to the receiver. Using this source port number the receiver thus can identify which service/application has send this packet and to which application/service the receir should reply to if necessary.

-- By MyNarutoAnime

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Q: What is a source port number?
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Related questions

How does a client computer determine what source port number to assign to a UDP header?

The port number is random


Why is it that a server needs a fixed port number but client process can be given any random port number?

The client process needs a temporary port number. It tells the server to which port to reply (the TCP or UDP header includes information about the source and the destination port). The client, on the other hand, doesn't know in advance what port the server uses - unless the server uses a standard port number.The client process needs a temporary port number. It tells the server to which port to reply (the TCP or UDP header includes information about the source and the destination port). The client, on the other hand, doesn't know in advance what port the server uses - unless the server uses a standard port number.The client process needs a temporary port number. It tells the server to which port to reply (the TCP or UDP header includes information about the source and the destination port). The client, on the other hand, doesn't know in advance what port the server uses - unless the server uses a standard port number.The client process needs a temporary port number. It tells the server to which port to reply (the TCP or UDP header includes information about the source and the destination port). The client, on the other hand, doesn't know in advance what port the server uses - unless the server uses a standard port number.


What does a client application select for a TCP or UDP source port number?

What a client application usually selects for a TCP or UDP source port number is a random value. The value selected is generally in the range of the registered ports.


Consider a tcp connection between host a and host b suppose that the tcp segments traveling from host a to host b have source port number x and destination port number y what are the source and des?

s


After a web browser makes a request to a web server that is listening to the standard port what will be the source port number in the TCP header of the response from the server?

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What information is used by the process running on one host to identify a process running on other host?

Information used are the source port number, the destination port number and ip addresses.


What is the source port number a dump of TCP header in hexadecimal format 05320017 00000001 00000000 500207FF 0000000?

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What allows an FTP server to keep track of connections from multiple clients to the FTP service?

The packet header source IP address and TCP header source port number


What is dynamically selected by the source host when forwarding data?

Source Port


A UDP header contains what fields?

A UDPheader contains four 16-bit fields. They are the source port, destination port, length, and checksum -- in that order.


During the encapsulation process which identifiers are added at the transport layer?

source and destination port number or two applications communicating the data


How do you get a port number on Minecraft?

By default, your minecraft port number is 25565, unless you've changed it this is your port number.