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Forum Discussion
Is my NAS Secure?
Hello, I am Michael Barnes and have A ReadyNas Duo V2. I have just read the attached http://www.bbc.co.uk/news/technology-28707117 article about security. I am not that technical but want to make sure...
IPv4 exhaustion is mostly a result of extremely sloppy address space design and implementation. There's only 256 Class A's (16,777,216 addresses per class A) in the entire IPv4 address space.
Yet in the beginning of the Internet, corporations grabbed entire class A's for themselves:
https://en.wikipedia.org/wiki/List_of_a ... ess_blocks
http://xkcd.com/195/
Even now as the space is exhausting, these companies are not giving up these huge blocks they don't need anymore, due to the revolution of private address reuse that NAT brought.
I find it impossible to believe that General Electric, IBM, Xerox, Hewlett Packard, Ford, Apple, Halliburton, Eli Lily, Prudential, Merck, and DuPont have any justifiable reason to still each be claiming 1/256 of the entire IPv4 address space for each of them.
They claimed these massive chunks of addresses at a time when no one knew what might become of this Internet thing, and now they should be forced to give them up and move to far smaller ranges like everyone else.
Also related to this is the just dumb assignment of an entire block of 16.7 million addresses to mean "loopback", when all that is actually needed is a single address (127.0.0.1). There is no rational reason to ever use "127.251.221.231" for loopback, but since the entire block has been used that way for so long, reclaimation for actual addressing is likely impossible due to it being used that way in so many ancient IP stacks.
Yet in the beginning of the Internet, corporations grabbed entire class A's for themselves:
https://en.wikipedia.org/wiki/List_of_a ... ess_blocks
http://xkcd.com/195/
Even now as the space is exhausting, these companies are not giving up these huge blocks they don't need anymore, due to the revolution of private address reuse that NAT brought.
I find it impossible to believe that General Electric, IBM, Xerox, Hewlett Packard, Ford, Apple, Halliburton, Eli Lily, Prudential, Merck, and DuPont have any justifiable reason to still each be claiming 1/256 of the entire IPv4 address space for each of them.
They claimed these massive chunks of addresses at a time when no one knew what might become of this Internet thing, and now they should be forced to give them up and move to far smaller ranges like everyone else.
Also related to this is the just dumb assignment of an entire block of 16.7 million addresses to mean "loopback", when all that is actually needed is a single address (127.0.0.1). There is no rational reason to ever use "127.251.221.231" for loopback, but since the entire block has been used that way for so long, reclaimation for actual addressing is likely impossible due to it being used that way in so many ancient IP stacks.
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