[143193] in North American Network Operators' Group
Re: dynamic or static IPv6 prefixes to residential customers
daemon@ATHENA.MIT.EDU (Owen DeLong)
Tue Aug 2 15:28:48 2011
From: Owen DeLong <owen@delong.com>
In-Reply-To: <F475A83D-DED4-4028-AB31-418D6C8F73FE@bogus.com>
Date: Tue, 2 Aug 2011 12:24:31 -0700
To: Joel Jaeggli <joelja@bogus.com>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Aug 2, 2011, at 10:28 AM, Joel Jaeggli wrote:
>=20
> On Aug 2, 2011, at 10:17 AM, Owen DeLong wrote:
>=20
>>>=20
>>> en1: flags=3D8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu =
1500
>>> ether 60:33:4b:01:75:85=20
>>> inet6 fe80::6233:4bff:fe01:7585%en1 prefixlen 64 scopeid 0x5=20
>>> inet 192.168.191.223 netmask 0xffffff00 broadcast =
192.168.191.255
>>> inet6 fd92:7065:b8e::6233:4bff:fe01:7585 prefixlen 64 autoconf=20=
>>> inet6 2001:470:1f00:820:6233:4bff:fe01:7585 prefixlen 64 =
autoconf=20
>>> media: autoselect
>>> status: active
>>>=20
>>> 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.
>>>=20
>>=20
>> Icky.
>>=20
>>=20
>> Better yet, just subscribe to an ISP that will give you a static =
prefix.
>=20
> Some (probably all) networks need addressing even when they're not =
attached to a provider.
>=20
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.
>=20
True.
Owen
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