On Wed, Apr 2, 2014 at 1:38 PM, William Lewis kg6baj@n1oes.org wrote:
(Please trim inclusions from previous messages) But, if I use 10.x.x.x numbers, and someone else used 10.x.x.x numbers, there is an inherent chance that some of the numbering schemes used might actually get duplicated from system to system.
One person might start using 10.0.0.1, 10.0.0.2 and so on.
The difference here is that RFC1918 space addresses ( 10.0.0.0/8;172.16.0.0/12;192.168.0.0/16) are consider unroutable addresses and will be dropped by the first border gateway router it runs into (or sooner). In large ISP's, these are considered private management space IP's keeping the backend running while routing the public IP addresses.
44.0.0.0/8 is considered routable space as it is not included in the RFC1918 specification. Hence all of the chatter since it is publically routable IP space.