Trust me - we explained al of this to the client - they know it's not perfect. ;)
On 5/13/05, Jim Davis <[EMAIL PROTECTED]> wrote: > > -----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:5:157416 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=89.70.5 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
