On Sat, 07 Apr 2007, Filippo Giunchedi wrote:
> another option can be to check if a vde2-* option has been specified in the
> stanza, to my knowledge ifupdown exports them to the script's environment. 
> Would
> that work?

I think so, but that test is already at the beginning of the script
/etc/network/if-pre-up.d/vde2.

if [ ! -x $VDE2_SWITCH ] || [ ! -x $SLIRPVDE ]; then
  exit 0
fi

It might be enough to protect similarly the other script.

Cheers,
-- 
Raphaël Hertzog

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