At 12:45 PM 6/28/98 PDT, Dave Rand wrote:
This has, in fact, happened before. One of the reasons that the unallocated spaces are listed on the RBL.
This topic comes up every now and then. I've searched the ARIN site and found some very outdated lists (some as old as 1996, but none newer than Feb, 1998). I've searched the archives, but no one seems to have an answer - except you. How do you tell what is and what is not allocated? Perhaps you could export just the non-assigned blocks in the RBL? Maybe under a second AS or something? I have no problem with the RBL myself, but some of my customers want a "full table", and won't take an RBL filtered one. I do, however, filter blocks which should not be routed - e.g RFC 1918 - and would like to include the non-assigned blocks. I just can't figure out a way to automate such a process. Especially since the whois servers limit the number of queries. (I'm not complaining, I understand the reasons, I'm just stating a fact.) And, of course, if anyone else has a possible way to find out which blocks are and are not assigned, I would appreciate it. Personally, I would *love* to see such a list created, say, once a day by the proper registries, so filters can be updated in a timely, automated fashion. But that's just me. :)
Dave Rand
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