well, of course. The question isn't what the RFC was written for, it's
what it might be used for. In this case, the "network administrator"
is the person who in today's internet installs a Linksys/equivalent
system in the residence/SOHO and expects to to work before they have
attached to the ISP. It works with IPv4...
On Jan 15, 2010, at 9:43 AM, Brian Haberman wrote:
Wojciech Dec (wdec) wrote:
In general, reading through the ULA rfc, while there is a fair bot of
talk regarding pseudo-random ULA global-id's and use along with
SLAAC,
there hardly is any reference to the scenario where there can be
multiple global-id's per site sourced by multiple routers. However,
the
presence of a subnet-id indicates that the authors did have in mind a
more managed addressing assignment regime, which becomes undone in
the
multiple router/gateway case.
The ULA RFC was not written with the perspective that individual
routers would automatically generate the ULA prefix and then
advertise them (either in RAs or a routing protocol). Rather, a
network administrator would generate the ULA prefix using the
guidelines provided, design a subnet model for the network, and then
configure the ULA prefix + subnet information in the routers.
If a network admin wanted multiple, diverse ULA prefixes, he/she can
use the random generation logic to generate an arbitrary number of
them. Again, the RFC was not written with the intent of routers
automatically generating the ULA prefix without operator intervention.
Regards,
Brian
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