nanog mailing list archives

Re: using "reserved" IPv6 space


From: Adrian Bool <aid () logic org uk>
Date: Fri, 13 Jul 2012 17:17:29 +0100



On 13 Jul 2012, at 17:11, Tom Cooper wrote:

On Fri, Jul 13, 2012 at 11:05 AM, TJ <trejrco () gmail com> wrote:

As an IPv6 newbie myself, I wonder how hosts handle link local, ULA and
global addresses.
For example, if you have some internal web traffic used for intranet use
only, do you bind those servers to use only ULA addresses? This way your
internal users with ULA addressing only have access to those servers? No
need to give intranet-only servers a global address if they're not needed
to be accessed globally.

Is there a way for hosts to "prefer" or "attempt" to connect to a service
by first trying a link-local scope, then a ULA and finally a global address
if its off the AS?


There is an RFC that describes how hosts should select addresses in such situations,

        http://tools.ietf.org/html/rfc3484

As an side; it would be great if some more IPv6 questions could be put on http://ipv6exchange.net/ - I would love to 
see that become a useful resource for people starting out with IPv6.  If you have an IPv6 question, please do post!

Cheers,

aid



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