Hi,

On Sun, Mar 09, 2025 at 04:59:10PM +0900, Nico Schottelius wrote:
> The whole point of IPv6 is end-to-end connectivity and re-enabling
> users. Imho something like multi link applications *should* be something
> trivial to solve in the IPv6 world.
> 
> Whether that's PI/PA+LIR space or multiple addresses per node, that's
> debatable, but generally speaking, IPv6 should be there to *solve*
> problems, not to add.

I agree :-)

"Multiple address per node" + a decent API so *users* can easily control
what they want applications to do ("web surfing via DSL, bittorrent on
the cable Internet") + proper source address failover would be bliss...

Especially "proper source address failover" would be much more robust
against remote failures than "BGP"  - think "packets going out via ISP A,
and there being a blackhole [think broken MPLS tunnel] between ISP A and
ISP X, so packets disappear" - with BGP you basically need to fumble on
your route policies then.  With "mmh, ISP A source does not work, let's try
ISP B source" things can be fixed from the application/client OS level.

Alas... nobody really interested IETF-side or OS/browser-side in working
on that.  Much more important to waste energy with stuff like DoH...

Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

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