> -----Original Message----- > From: Tony Weeg [mailto:[EMAIL PROTECTED] > Sent: Friday, May 13, 2005 12:33 AM > To: CF-Community > Subject: Re: Need some IPs... > > wouldnt you imagine that countries were given ranges of class b's ? or > class a's?
Oh - you can imagine it - but is it done? ;^) As far as I knew IANA didn't do this but I was only partially correct. This explains some of it: http://www.iana.org/assignments/ipv4-address-space The RFC referred to is here: http://rfc.net/rfc1466.html >From that here's a table of the top-level block assignments: Multi-regional 192.0.0.0 - 193.255.255.255 Europe 194.0.0.0 - 195.255.255.255 Others 196.0.0.0 - 197.255.255.255 North America 198.0.0.0 - 199.255.255.255 Central/South America 200.0.0.0 - 201.255.255.255 Pacific Rim 202.0.0.0 - 203.255.255.255 Others 204.0.0.0 - 205.255.255.255 Others 206.0.0.0 - 207.255.255.255 So you can see that while in some cases you can make a determination, you can't always. Also these are just assignments to registries - not specifically matched that area. It seems the registry in question may assign blocks however they like. Also from the first doc you can see that many large blocks are assigned to companies - not locations (so, presumably somebody like IBM would have the same IP range across their global operation). I know that now that we're outsourcing way too much work to India they get IPs from the "enterprise" range (the enterprise is based in NY) to ease firewalling and such. In these case the physical location of the computers doesn't matter nearly as much as the central management location for them. All told I just can't see how such IP filtering could really be trusted - but all I have to go on is less than 1/2 hour of research so my conclusions may be flawed. ;^) Jim Davis ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Discover CFTicket - The leading ColdFusion Help Desk and Trouble Ticket application http://www.houseoffusion.com/banners/view.cfm?bannerid=48 Message: http://www.houseoffusion.com/lists.cfm/link=i:5:157405 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/5 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:5 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.5 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
