Thomas
Wed Jun 06 10:16:19 CDT 2007
I suggest that you use a well-written user-mode Winsock application.
You can write a NDIS IM driver to do this, but there are several issues:
1.) You probably won't see measurable performance increase over a
well-written Winsock user-mode application. You will spend a tremendous
amount of time and realize little gain.
2.) Sending IP from two NDIS drivers (Built-in TCP/IP stack and your driver)
can interfere with each other. All received packets will be given to both
TCP/IP and your driver. The TCP/IP driver may not recognize packets that it
receives that are responses to private packets that you sent, and may send
NAK or other packet by mistake. That is why I mentioned IM driver instead of
protocol driver. In IM driver you have a (slim) chance of filtering received
packets and preventing the built-in TCP/IP stack from getting confused.
3.) You cannot just "send IP packets" from your driver. You will probably
have to port an almost complete TCP/IP stack to your driver to make it work.
Tremendous development and support effort here with little measurable
performance gain.
Use a well-written Winsock application...
Thomas F. Divine
Windows DDK MVP
<anand.choubey@gmail.com> wrote in message
news:1181137487.787750.133770@r19g2000prf.googlegroups.com...
> Hi,
>
> Thanks for your reply.
>
> I want to send IP packets of 9000 bytes. I have Gigabit card.
>
> Should I write IM driver or protocol driver?
>
> Please tell me.
>
> Thanks,
>
> Anand Choubey
>