On Fri, Nov 23, 2001 at 09:52:35AM +1300, Andy Linton wrote:
The other thing you should think about is that when one one of your customers walks off to another ISP with one of *your* provider blocks then you've got no moral ground to stand on to complain about that behaviour. If you do advertise this you're punching holes in some other provider's supernet - try it from the other side and see how you like it.
That is all good advice in general, but in this specific case there may be no covering supernet -- I think Telstra stopped advertising 203.0.0.0/10 earlier this year (I don't see it now, anyway). If the block was originally directly delegated from AUNIC, it's probably just swamp space. Incidentally, vrt Verio-style filtering on RIR allocation boundaries, it's interesting to note that although Verio filter their peers in that manner, the same does not follow for their customers, so in this respect they're being liberal in what they send, and conservative in what they accept (so, robust wrt Verio's internal network and non-robust wrt the rest of the world). Joe - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog