Ahem,

> In that case you need to add a second ethernet to the
> Pi - a good USB-2 ethernet should get you 100Mb/s,

:-) Which is what my initial question started with.   Should I just plug a
ethernet dongle into an USB port, or are other (and perhaps better) options
available ?

Second, how do handle (configure) such an extra interface ? Especially as I
do not want either interface to be able to talk to the other without my
say-so.

Are there (open source, sourcecode) programs available which will handle
such (very restriced) communication ?

As I said, I'm a rather newbie in regard to both Linux as well as the RPi.
I could do worse than to work my way thru a tutorial or get my (rather
needed) pointers from someone elses project.

> connect one to each of the networks and arrange for
> NFS or Samba to export shares to both networks.

:-)  Although I know of the latter by way of what Windows offers (SMB), I
have no idea what exactly the SAMBA service does or how I should/need to
configure it.   Let alone which things I all need to disable to be sure no
inadverted connections can be made between the interfaces.

Last, but certainly not least, I have no problem with trying to whip up
something myself.  In fact, that is pretty-much where my hobby lies.

Regards,
Rudy Wieser

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