[6bone] non-global address space for IXs (was: 2001:478:: as /48)

[Haesu]

<snip>
> 
> Running uRPF towards our upstream doesn't help that much (we *do* have
> access-list based filters that prevent spoofed packets carrying our
> source addresses from coming in that way) but is much more likely to
> break things.

I second that;although using loose-check uRPF on  upstreams would work fine in
general. My consensus is that 'why should I recv a packet if it does not
exist in routing table?' 

-hc

-- 
Sincerely,
  Haesu C.
  TowardEX Technologies, Inc.
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