Brian, 2012/3/17 Brian E Carpenter <brian.e.carpen...@gmail.com>: > On 2012-03-16 23:30, Arifumi Matsumoto wrote: > ... >> Rather, my question was about the design choice. >> >> Regarding the design of ULA and how to use the ULA, can we agree that >> ULA-to-ULA communication within the same /48 prefix is not always preferred >> over other communications using IPv4 or IPv6 global addresses ? > > I would expect it to be preferred as a result of longest match; I would > not expect it to be a special case in the default policy for global > scope addresses, if that is the question.
ULA-to-ULA will not be preferred, because ULAs are assigned lower precedence value in the policy table than those of IPv4 and IPv6 global addresses. Best, >>>> Second, >>>> when a user configures his policy table, the configured table is >>>> overwritten by >>>> this implementation dependent policy injection behavior ? >>>> Can the user suppress this behavior of policy injection ? >>>> This issue should arise also when a policy distributing mechanism is ready. >>> Good questions. Do you have suggested answers to those questions? >>> I might throw out a strawman of: >>> >>> Any automatic rows added by the implementation as a result of address >>> acquisition MUST NOT override a row for the same prefix configured >>> via other means. That is, rows can be added but never updated >>> automatically. An implementation SHOULD provide a means for >>> an administrator to disable automatic row additions. >> >> >> My suggested answer for this was to use macros, which can be >> added/deleted by a user, and interpreted as the actual prefix >> attached to the hosts. > > That's an implementation method. I think Dave's proposed rule is > correct. > > Brian > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > ipv6@ietf.org > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
