[vox-tech] bypass linux native tcp stack

[ME]

Check out the ethertap device in the linux kernel for generation of raw
ethernet frames.

Programs like BasiliskII (Apple Macintosh Emulator) can use the ethertap
device (tap0). This allows a MacOS TCP/IP stack within BasiliskII to write
to the datalink layer and bypass the internal TCP/IP stack used by the
general linux system. Basilisk also ships with "sheep_net" kernel module
you can compile to do something much like what you get with ethertap.

check out netlink support (CONFIG_NETLINK) and CONFIG_ETHERTAP in the
kernel as config options.

Ethertap is degraded as it is being replaced by TAP/TUN. More 
Info:
http://www.linuxhq.com/kernel/v2.4/doc/networking/ethertap.txt.html

Hope this is what you are looking for.

-ME

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     Systems Department Operating Systems Analyst for the SSU Library

On Thu, 29 Nov 2001, Ganesh  Subramaniam wrote:
> I have 'nt got into details of Linux tcp/ip architecture. Can someone tell
> me how coupled is the socket layer in linux with its native tcp/ip stack. Is
> it possible for me to make the linux socket layer bypass the native tcp/ip
> stack and communicate with some other layer (say another tcpip
> implementation) , without affecting the existing applications. Would
> appreciate some pointers,discussions on this subject.
> 
> Thanks a lot !
> Ganesh