BBC News - 'Fresh proposals' planned over cyber-monitoring

Ian Batten igb at
Fri May 10 15:03:54 BST 2013

On 10 May 2013, at 11:42, Roland Perry <lists at> wrote:

> In article <518CB006.8000604 at>, Peter Tomlinson <pwt at> writes
>> The internet service provider (ISP) has announced that it is currently piloting technology called Carrier-Grade Network Address Translation (CGNAT) that will see as many as nine different customers share the same IP address.
> Mobile networks use carrier-grade NAT as well, so the technique is well understood.
>> BT said it is trialling CGNAT in a bid to make the most efficient use of existing "IPv4 internet address", which are currently "running out", before new "IPv6 addresses become widely adopted". Doing so will enable fixed-line internet customers to stay connected, it said.
> God forbid they roll out IPv6 instead :(

Of course, they'd need a CGNAT (I've never really understood how that differs from plain NAT) solution there, because most of the Intertubes aren't accessible with pure IPv6.


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