How can I get EVERY IP packet on the computer and filter them? E.g. I need looking by IP address let the packet to go or stop it, saying it has no network(or something like that) Links/Docs are welcome, tuts most welcome :-)
If the traffic goes over a network card i think you can hook it somehow. If it is a modem connection i belive you have to write a .vxd that intercepts winsock itself somehow.
you could always patch winsock.dll
umm make that wsock32.dll..;)