Re: ROVER routing security - its not enumeration

[Christopher Morrow <morrowc.lists () gmail com>]

On Tue, Jun 5, 2012 at 3:40 PM, Randy Bush <randy () psg com> wrote:
> > > There are number of operational models that provide the needed
> > > routing protection without enumeration.
> > I can see a use-case for something like:
> >   "Build me a prefix list from the RIR data"
>
> this requires a full data fetch, not doable in dns.

does it? shane implied (and it doesn't seem UNREASONABLE, modulo some
'doing lots of spare queries') to query for each filter entry at
filter creation time, no?

get-as-GOOGLE =  216.239.32.0/19
lookup-in-dns = <rover-query-for-/19> + <rover-query-for-/20> +
<rover-query-for-/21>.....

that could be optimized I bet, but it SEEMS doable, cumbersome, but
doable.  the 'fail open' answer also seems a bit rough in this case
(but no worse than 'download irr, upload to router, win!' which is
today's model).

-chris