<snip>

> My other question I still have problems because I was thinking that on
> the application layer for example only HTTP data are received. The IP
> and port and the transport kind (TCP/UDP/ICMP) are removed. But there
> must be still a problem in my logic.

You are correct, applications which use the winsock api (which is an api to
work with/access the tcp/ip stack) usually removes ip/tcp/udp headers and
that sort of thing and only returns http protocol headers/content.

Special http protocol libraries might even remove some of the http stuff...
and just return some text or so.

Bye,
Skybuck.