Hello, On Sat, Apr 16, 2022 at 10:39:03AM +0530, didar wrote: > On Fri, Apr 15, 2022 at 10:58:01PM +0000, Andy Smith wrote: > > If you happen to know their IPv6 addresses and can trust that those > > assignments will remain stable then you may prefer instead to add > > prohibited routes for these, e.g. > > Not really. Y! uses both hardware load balancers as well as GSLB (global > service > load balancing*). During routine maintenance and updates, both facilities are > used to move traffic to different targets.
Sure, it may not be feasible, but it is an alternative to manually having to disable one's entire IPv6 connectivity and then re-enable it later! If you notice a problem with Y! (or whoever) then you may have encountered a new netblock and at that time can just add another prohibited route for it. There won't be many in total and it won't matter if you pick a whole /32 or /29. v6 allocations are purposefully intended to be huge so that organisations won't go back for more and need extra routes in the global routing table. Cheers, Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting
