A new tool for low level testing...

[gnn at freebsd.org]

At Tue, 23 Dec 2008 13:00:12 -0800,
julian wrote:
> 
> gnn at freebsd.org wrote:
> > Hi,
> > 
> > I just checked in a small tool to HEAD in
> > /usr/src/tools/tools/ether_reflect which uses pcap and bpf to reflect
> > ethernet packets just about the driver layer without involving the
> > protocol stacks.  This is useful for people doing low level testing of
> > drivers and switches.  If you happen to be lucky enough to have an
> > ethernet packet generator (ixia et al) this will do what you want in
> > terms of reflecting the packets back.
> > 
> > Later,
> > George
> > _______________________________________________
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> 
> 
> OR
> 
> ngctl mkpeer em0: echo lower echo
> 
> 
> hmmmmm no this would leave the source and destination headers in hte 
> same order.. they need to be swapped..
> 
> ok so I need to make a patch, but it would be much quicker than a user 
> utility..

I agree that netgraph is the right long term answer.  I look forward
to what you come up with.

Also, +1 to an improved set of docs on netgraph.

Later,
George