Re: dynamic or static IPv6 prefixes to residential customers

[Owen DeLong <owen () delong com>]

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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