On Tue, 2008-02-12 at 19:37 +0000, Andrew Suffield wrote:
> 
> I'm not sure there are any sane solutions to routing in that
> world.

Indeed.

> Get a better ISP?

The problem is not a bad singular ISP.  It's combining more than one ISP
that starts to make the problem.  And the bottom line is that for most
of the world, ISP shopping is not like going to the supermarket and
having forty-eleven brands to choose from.  I'm lucky I have a few
choices, but there are people in rural parts that have 1 choice (but
they don't apply here) or perhaps two choices and if they want multiple
links, that means no choice.

Sure, in an ideal world, ISPs would operate sanely.  We are far from
that and must deal in any case.

> Hmm. I remember thinking about this a couple of years ago and seeing a
> solution, but it does not immediately come to mind now. I must
> cogitate further...

Part of the problem is the inflexibility of various players.  Everything
that deals with routing assumes a single "main" routing table when in a
more complex world that's not the case and there is no ability to step
in and change that.  That's why shorewall's "hack"s to deal with it is
used by the people who use it.

b.

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