Re: Spanned port equivalent

[Jeff Garzik]

On Wed, Jan 14, 2004 at 11:13:35AM -0500, Mike Leddy wrote:
> I would like to be able to construct a box that can
> promiscuosly sense traffic on a number of standard 100Mbps 
> NICs and concentrate this traffic on an outgoing 1Gbps
> interface.
> 
> Essentially any packets seen on the input nics would be 
> copied and sent out unaltered on the output interface.
> 
> Does anyone know how I can achieve this ?
> 
> At the kernel level I have looked for inspiration in the 
> bonding driver, bridging and netfilter but so far I've 
> drawn a blank.
> 
> Would it be practical to do this in user space with three 
> our four input NICS and heavy traffic ?

I would use CONFIG_NET_FASTROUTE to send directly from one NIC to
another...
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