On Fri, 2003-10-24 at 00:00, Nick Rout wrote:
> yes its been lingering in my mind as to why exactly there is a default
> route set before the gateway to the outside world goes up?

With IP, you only *need* a loopback interface - all other interfaces can
be virtual, not physical.

So the presence of IP implies loopback, which implies a default route to
loopback. The "inside world" is always present - the "outside world" is
not.

When you install new interfaces, it's up to the installer to nominate
the new default route.

(Yes, leaving a default route to loopback isn't necesarily that useful,
but it always works)

-jim

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