topic Pix Packet Tracer Question in Network Security

Pix Packet Tracer Question

Neuromancer — Mon, 11 Mar 2019 13:02:01 GMT

When you run a packet trace, can you put any random source port above 1024 like TCP would normally pick?

Re: Pix Packet Tracer Question

Farrukh Haroon — Fri, 20 Jun 2008 10:31:22 GMT

Yes Chris, that can be done without any issues. It is just simulation anyway.

Regards

Farrukh

Re: Pix Packet Tracer Question

Neuromancer — Fri, 20 Jun 2008 18:30:22 GMT

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

Re: Pix Packet Tracer Question

Farrukh Haroon — Fri, 20 Jun 2008 19:06:58 GMT

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

Re: Pix Packet Tracer Question

Neuromancer — Fri, 20 Jun 2008 20:32:27 GMT

This is exactly what I was thinking. Thank you very much for your help!

Chris