configure NAT with demand dial interface?

[Lowell Gilbert]

imax36581 <imannapelon at yahoo.com> writes:

> im new to freebsd.
> i want to that can i have a NAT service that using demand dial
> connection(such as dial up or pppoe connections)?
> can i configure it to disconnect when the service is idle(for saving
> bandwidth)?

ppp(8) supports this directly:
  http://www.freebsd.org/cgi/man.cgi?query=ppp
[see the -auto and -nat options]
-- 
Lowell Gilbert, embedded/networking software engineer, Boston area
		http://be-well.ilk.org/~lowell/