[CentOS] IPV4 is nearly depleted, are you ready for IPV6?
David Sommerseth
dazo at users.sourceforge.net
Tue Dec 7 17:50:43 UTC 2010
On 07/12/10 18:39, Les Mikesell wrote:
> On 12/7/10 11:19 AM, David Sommerseth wrote:
>> On 07/12/10 18:01, Les Mikesell wrote:
>>> On 12/7/10 10:20 AM, Adam Tauno Williams wrote:
>> [...snip...]
>>>> "permit outbound client connections from anything connected behind them
>>>> without much regard to how many devices there are, and block everything
>>>> else" isn't NAT. That's a router/firewall. Happily IPv6 does that
>>>> exactly.
>>>
>>> You didn't mention the number of devices - how does that play out when you
>>> exceed the number initially set up?
>>
>> How many devices? You mean exceeding the number of available inside a
>> IPv6 subnet? I do hope you're kidding ... as for a /64 subnet we're
>> talking about 4.294.967.296 addresses doubled 32 times.
>
> Is that what people will automatically get in a home ISP connection?
Yes. Either a /64 subnet or more likely a /48 subnet, where a /48
subnet == 65536 /64 subnets.
And the 48 bits ISPs gives customers corresponds to 281.474.976.710.656
/48 subnets. Compare that number to IPv4 32 bits:
4.294.967.296
Kind regards,
David Sommerseth
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