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11/10/2007, 03h01

On Oct 9, 8:45 am, Markus <markus.hofm...@gmail.com> wrote:
> Hi everybody,
>
> I have an understanding problem of how a TCP/IP stack works.
>
> After the IP data where processed and the IP header is removed, the
> data packet could be TCP, UDP, or ICMP. At the moment I do not
> understand how and where the decission is made. For example if the
> data are TCP the message need an acknowledgement.
>
> The same understanding problem I have with the application layer. If I
> have running two programs like Firefox or IE where the stack knows
> which browser invoked which homepage?

The following link should . You will find TCP/IP sequence diagrams
that should answer some of your questions.

http://www.eventhelix.com/RealtimeMantra/Networking/

--
VisualEther - http://www.EventHelix.com/VisualEther
Generate sequence diagram from Wireshark (Ethereal)

11/10/2007, 03h01	#11
EventHelix.com Messages: n/a Hébergeur:	Re: How does a TCP/IP stack work in detail? On Oct 9, 8:45 am, Markus <markus.hofm...@gmail.com> wrote: > Hi everybody, > > I have an understanding problem of how a TCP/IP stack works. > > After the IP data where processed and the IP header is removed, the > data packet could be TCP, UDP, or ICMP. At the moment I do not > understand how and where the decission is made. For example if the > data are TCP the message need an acknowledgement. > > The same understanding problem I have with the application layer. If I > have running two programs like Firefox or IE where the stack knows > which browser invoked which homepage? The following link should . You will find TCP/IP sequence diagrams that should answer some of your questions. http://www.eventhelix.com/RealtimeMantra/Networking/ -- VisualEther - http://www.EventHelix.com/VisualEther Generate sequence diagram from Wireshark (Ethereal)