On 13/03/07, Oron Peled <[EMAIL PROTECTED]> wrote:
First, terminology: s/switching/forwarding/
Either:
echo 0 > /proc/sys/net/ipv4/ip_forward
Or the equivalent:
sysctl -w net.ipv4.ip_forward=0
Now you can send/receive packets from all your network interfaces
but there's no routing for packets among them.
I think what the Shlomi was refering to is that the kernel will
automatically "optimize away" the hardware layer because it knows that the
address it sends to is actually its own.
I'm not 100% sure he's right (it used to be that you had to have an
additional routing entry to achieve that on old systems, and as far as I
remember today's kernels are smart enough to do that automatically), but if
he is - is there a way to prevent this?
What puzzels me in the original question is:
level, so we can still use higher-level protocols such as TCP/IP?
What did you mean by that? The question seemed to be at the IP/ethernet
level until now, TCP should go wherever IP will boldly take it....
--Amos
