On Thu, Sep 07, 2000 at 01:45:40PM -0400, Andrew Brown wrote:
> yep, that's exactly how it works.  the only trick was "borrowing"
> another ip address from the cable modem provider (for the local isdn
> endpoint) so that the outbound traffic would get properly nat'ed.
> 
> his isdn provider doesn't do source filtering, but then again...he's
> on retainer there to help with stuff like that, so he's pretty much
> covered.

Until their BGP peers smarten up and put AS or network filter lists on
the BGP connections to their non-transit providing customers. Even if
the ISDN provider in question is a transit provider, unless they provide
transit to that cable CO, someone could filter your access out one day.

-- 
David Maxwell, david@vex.net|david@maxwell.net -->
(About an Amiga rendering landscapes) It's not thinking, it's being artistic!
					      - Jamie Woods