[RADV] prefix deprecation

[Michael Saxl]

Am Donnerstag, 27. November 2025, 18:24:31 Mitteleuropäische Normalzeit 
schrieb Ondrej Zajicek:
> On Thu, Nov 20, 2025 at 01:18:06PM +0100, Michael Saxl via Bird-users wrote:
> > Hello,
> > 
> > I'm doing some experiments using radv and bird3.
> > as expected it bird3 automatically sends prefix informations if not
> > somehow disabled. ...
> > I've not tried all combinations, but the simplest fix for me is
> > setting .onlink and .autonomous =1 in dead_prefix. I'm not sure if this
> > does not break prefixes that are explicitly defined, so I did not
> > modifiy dead_prefix but instead changed
> > 
> > What do you think about this changes?
> 
> Hello
> 
> Your change worked for a case when a prefix was removed from the
> interface, but not for a case when a prefix was de-configured in
> the BIRD config.
> 
> I fixed is by keeping active value of flags in the prefix structure
> itself:
> 
> https://gitlab.nic.cz/labs/bird/-/commit/324f4532ef90a66b4d1221ddccf790573cc
> fc623

Hello,

I can confirm that the commit in the master branch of bird works (I backported 
it to my local debian package, the difference between this one and my backport 
is the missing pd_preferred that does not yet exist in 3.1.0)

Thanks for the quick fix.