sending and receiving raw ethernet packet to/from embedded system

Hi,

     I am unable to find a function in MSDN which can send a raw
ethernet packet to embedded system [ board ]. I used  Send , SendTo ,
ReceiveFrom methods. which are able to send ICMP request only.

I need to implement GUI through which I have to send and receive raw
ethernet packets to / from board. So, kindly send me the solution.

Please anybody knows about it , help me.

Since you mentioned MSDN, I am assuming you are working in a win32 
environment,although I am somewhat confused by your "...to/from
embedded system."

You can use winpcap for this purpose (this is a windows port of the 
famous libpcap library):
http://www.winpcap.org/
You will need the developer's pack in order to get header files and 
libraries.

You will find an example here:
http://www.winpcap.org/docs/docs31/html/group__wpcap__tut8.html

I have read there were some limitations with this port, but this should 
not be an issue
in your case.

If you are happy with winpcap, please take some time reading the 
original paper written by Van Jacobson and Steven McCanne:
ftp://ftp.ee.lbl.gov/papers/bpf-usenix93.ps.Z

The original package for Unixes is available here:
http://www.tcpdump.org/

Jean Tabel

balajiyalam@gmail.com wrote:
> Hi,
> 
>      I am unable to find a function in MSDN which can send a raw
> ethernet packet to embedded system [ board ]. I used  Send , SendTo ,
> ReceiveFrom methods. which are able to send ICMP request only.
> 
> I need to implement GUI through which I have to send and receive raw
> ethernet packets to / from board. So, kindly send me the solution.
> 
> Please anybody knows about it , help me.
> 

>Hi,
>
>     I am unable to find a function in MSDN which can send a raw
>ethernet packet to embedded system [ board ]. I used  Send , SendTo ,
>ReceiveFrom methods. which are able to send ICMP request only.
>
>I need to implement GUI through which I have to send and receive raw
>ethernet packets to / from board. So, kindly send me the solution.
>
>Please anybody knows about it , help me.

While the other poster mentioned a way to do what you want, your
aproach IMHO is asking for trouble. Well, you may have good reasons
(like testing only), but if this is the aproach choosen to operate a
final product I would reconsider basing it on ethernet alone.

Consider using UDP, since by doing so you are not liekly to "violate"
network setups in those envireonements your platform is suposed to
operate. UDP does not actually mean you have to implement a lot of
stuff on your embedded platform. In fact implementing it is straight
foreward and lightweight. It generally will increase the
interoperability of your system by a great deal. I.e. when it comes to
routing etc. At the same time you also will be able to directly talk
to the platform using normal socket functionality - on all platforms -
including windows, unix systems apple etc. etc.

Just my 2� though

Markus