[outages] HE IPv6 tunnel PMTU issues with juniper.net

[Gert Doering]

Hi,

On Wed, Oct 01, 2014 at 10:09:49AM -0500, Mark Felder via Outages wrote:
> It's nearly a requirement to lower your MTU / enable mss-clamping when
> doing ipv6 tunnels. It's possible some connectivity of yours was broken
> and you just didn't notice it until now. I had to do this on my J series
> and I also have to do it on my OpenBSD firewall -- 

Actually this is the wrong way to go about it.  It's hiding the symptoms
instead of fixing the problem.

> The whole fragmentation situation with IPv6 is kind of a joke

This is not about fragmentation.  (Indeed, the whole story about IPv6 frag
handling in *BSD firewalls is too sad to think about it)

gert
-- 
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de