On 11.09.2016 09:29, Oliver Mangold wrote: > Hi, > > I have a question as a relatively new user to IPv6. I am wondering if it > is currently possible to enable/disable the usage of temporary addresses > on a per-prefix basis. My current understanding is that the feature is > enabled by the the 'use_tempaddr' sysctl attribute, which is > per-interface. What I would like to do is disable temp addresses for ULA > prefixes. Did I miss something and this can already be done, or is it a > feature planned for the future, maybe? RFC4941 seems to agree that this > is a valid use case: > > > Additionally, sites might wish to selectively enable or disable the use > of temporary addresses for some prefixes. For example, a site might > wish to disable temporary address generation for "Unique local" [ULA] > prefixes while still generating temporary addresses for all other global > prefixes. Another site might wish to enable temporary address > generation only for the prefixes 2001::/16 and 2002::/16, while > disabling it for all other prefixes. To support this behavior, > implementations SHOULD provide a way to enable and disable generation of > temporary addresses for specific prefix subranges. This per-prefix > setting SHOULD override the global settings on the node with respect to > the specified prefix subranges. Note that the pre-prefix setting can be > applied at any granularity, and not necessarily on a per-subnet basis.
We don't support such a feature (yet). I think NetworkManager also doesn't implement it so far. Bye, Hannes
