Re: ICMPv6 "too-big" packets ignored (filtered ?) by Cloudflare farms

[Jeroen Massar <jeroen () massar ch>]

On 2019-03-08 14:45, Brandon Martin wrote:
> On 3/8/19 8:38 AM, Saku Ytti wrote:
> > Hey,
> >
> > >      now for UDP, I don't know yet how does things like QUIC can be handled ...
> >
> > Unfortunately the magic answer you were hoping does not exist, what
> > they do is they just send smaller packets.
>
> What we almost seem to be moving toward in this discussion is an IP header where the path can reduce the reported MTU 
> which can then be read at the receiving end.  This would be somewhat like ECN just with more than a couple bits.

Something like what I once described in:
https://jeroen.massar.ch/archive/drafts/draft-massar-v6man-mtu-label-02.txt

? :)

Greets,
 Jeroen