Pix Packet Tracer Question

Answered Question
Jun 19th, 2008
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When you run a packet trace, can you put any random source port above 1024 like TCP would normally pick?


Correct Answer by Farrukh Haroon about 8 years 10 months ago

The approach you use better simulates the actual behavior of the OS TCP/IP Stack. Usually ports above 1024 are chosen for source ports as the lower ports are reserved. But in most cases it does not matter that much because the real point is to test the destination server (80 in your example).


Regards


Farrukh

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Farrukh Haroon Fri, 06/20/2008 - 03:31
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Yes Chris, that can be done without any issues. It is just simulation anyway.


Regards


Farrukh

Christopher007 Fri, 06/20/2008 - 11:30
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Farrukh, thank you for your response.


I think I'm more curious whether or not I'm using the packet tracer correctly. I've seen some of my coworkers put the same port for source and destination, and it didn't make sense to me. (For example, when testing http, they would put the source port as 80 as well as the destination.) I believe that this is the incorrect way to use the packet tracer. What do you think?


Thanks,

Chris

Correct Answer
Farrukh Haroon Fri, 06/20/2008 - 12:06
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The approach you use better simulates the actual behavior of the OS TCP/IP Stack. Usually ports above 1024 are chosen for source ports as the lower ports are reserved. But in most cases it does not matter that much because the real point is to test the destination server (80 in your example).


Regards


Farrukh

Christopher007 Fri, 06/20/2008 - 13:32
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This is exactly what I was thinking. Thank you very much for your help!


Chris

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