Suggestion from Piet Beertema
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Arnold Nipper
nipper at ira.uka.de
Wed Jul 22 17:00:11 CEST 1992
> Suppose "nslookup" does domain name to adress translation, > "net" does IP adress to IP net translation and finally > "connect" gives the connect information about IP networks What I was thinking of was the "*n[io]" - tag already used. (e.g: *ni: 1=701 2=1800 3=1238 ) > (This information already is in the RIPE DB), then > connect ( net ( nslookup ( domain name ) ) ) > does what you want. >No, it doesn't. The connect field gives the connectivity >a given network has, partly in "real" connectivity (e.g. >"EU"), partly in "pseudo" connectivity ("RIPE"), but it >doesn't state which the network service providers are nor >nor the order in which these are service providers. And >the latter is extremely important for determining policy >based routing. The least that should be done to treat the >connect field as routing source is to list the mnemonics >that stand for the real service providers in order of >routing preference (for the associated network of course). >However, I don't like this "solution" at all, given the >mix of "real" and "pseudo" connectivity in the connect >field. Besides, a new field could be based an AS numbers >in order of preference, much like the NSFnet policy routing >database does now, making life infinitely easier. > >Furthermore I would consider building potentially large >access or other lists for a router in the suggested way, >through massive DNS queries, a crime... As far as I remember there is a "*di" - tag for domain name entries listing IP adresses used in this domain. Hence no usual "nslookup"! > > Don't overload the DB with information (Current size: 7315558 Byte. > We started with some hundred KB). >It will keep on growing anyway, especially when the RIPE, >NIC and Merit databases get synchronized. Database size >should not be used as an argument to keep out *useful* Don't misunderstand me!! I don't want to keep out *useful* information. I just want to minimize and streamline the DB. Keep the DB as small as possible and join the information on your local machine (NO DNS lookups!). >and authoritative information. > > > Piet Arnold
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