Cheers for the warning, -----Original Message----- From: Russell Fulton [mailto:r.fulton(a)auckland.ac.nz] Sent: Thursday, 30 June 2005 11:40 a.m. Cc: James J. Guidera; NZNOG(a)list.waikato.ac.nz Subject: Re: [nznog] NZ IP-Range Steve Phillips wrote:
Just be aware that these solutions will give you a list of "NZ IP Ranges" but may not be New Zealand based netwise.
If you are looking for traffic originating in NZ and not traversing
international links then thats an entirely different story and only your ISP can provide you with this.
If this is a bill saving exercise then it may pay to be a little
any prudent.
I echo Steve's warning. It really depends how relaible you need the data to be. Back in the days when everything went throug NZGate at Waikato they kept lists of NZ addresses based upon the BGP tables. These contain quite a few small blocks of non NZ addresses -- mainly belonging to large multination companies and Telcos. I imagine it has got worse not better. If accuracy is crucial then you really need something based on the routing tables that gets updated frequently. Russell