network in my OS?

[Hery]

what should i do if i want to have got TCP in my OS. i know that i shoul use first ARP, later IP and then my lovely TCP but what before ARP??

[carbonBased]

Before anything you're going to need a network driver for your ethernet card... that would be my first step.

--Jeff

[Hery]

where can i find infromations about it??

[ManOfSteel]

Hello,
the following six PDF documents discribe the functionning of NICs of different brands and different types. One of them even contains some assembler source code for a driver. The files are 3 megs. I hope they will help.
3c90xb.pdf
3c90xc.pdf
dp8390details.pdf
dp8390overview.pdf
ne2000.pdf
writingdriversforthedp8390.pdf

[Hery]

thank you very much!!! i'm sure that it help me
ok, what i should do now (if we think i have got driver for my ethernet card)

[ManOfSteel]

Hello,
you could probably begin studying some network protocols and network programming.
You may find some useful informations in these sites.
http://www.ecst.csuchico.edu/~beej/guide/net/
http://www.rfc-editor.org/rfcsearch.html

[Hery]

did you mean that i now must make sockets in my OS??

[Legend]

Implement the exact API from for example BSD sockets or Winsock ... no, that should not be necessary unless you want.
Implement something that follows a similiar concept - in the end you'll end up doing this no matter what you do, as this is what TCP/IP basically is.