dynamic or static IPv6 prefixes to residential customers
Owen DeLong
owen at delong.com
Tue Aug 2 19:24:31 UTC 2011
On Aug 2, 2011, at 10:28 AM, Joel Jaeggli wrote:
>
> On Aug 2, 2011, at 10:17 AM, Owen DeLong wrote:
>
>>>
>>> en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>> ether 60:33:4b:01:75:85
>>> inet6 fe80::6233:4bff:fe01:7585%en1 prefixlen 64 scopeid 0x5
>>> inet 192.168.191.223 netmask 0xffffff00 broadcast 192.168.191.255
>>> inet6 fd92:7065:b8e::6233:4bff:fe01:7585 prefixlen 64 autoconf
>>> inet6 2001:470:1f00:820:6233:4bff:fe01:7585 prefixlen 64 autoconf
>>> media: autoselect
>>> status: active
>>>
>>> Note the multiple prefixes. IPv6 is not just IPv4 with bigger addresses.
>>> If you want to give your printers, etc. stable IPv6 addesses use ULAs.
>>>
>>
>> Icky.
>>
>>
>> Better yet, just subscribe to an ISP that will give you a static prefix.
>
> Some (probably all) networks need addressing even when they're not attached to a provider.
>
I don't understand why this is a problem if your ISP gives you a static address.
There are, of course, other sources of addresses available as well.
Nobody has yet presented me a situation where I would prefer to use ULA over GUA.
> while link-local is necessary it's also probably not sufficient.
>
True.
Owen
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