[143213] in North American Network Operators' Group
Re: dynamic or static IPv6 prefixes to residential customers
daemon@ATHENA.MIT.EDU (Mark Andrews)
Wed Aug 3 00:44:53 2011
To: Jima <nanog@jima.tk>
From: Mark Andrews <marka@isc.org>
In-reply-to: Your message of "Tue, 02 Aug 2011 21:50:53 CST."
<4E38C59D.8000201@jima.tk>
Date: Wed, 03 Aug 2011 14:43:51 +1000
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
In message <4E38C59D.8000201@jima.tk>, Jima writes:
> On 2011-08-02 11:17, 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.
>
> Well, judging by his prefixes, he does.
Indeed it is static but that doesn't change the argument that having a ULA
works. The address selection algorithms choose the right source address
for the correct destination address. The RA's for 2001:470:1f00:820::/64
could be withdrawn and the network would continue to work.
Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka@isc.org
