dynamic or static IPv6 prefixes to residential customers

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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