[Nut-upsdev] Issues accessing http://www.networkupstools.org/ via IPv6

Paul Fertser fercerpav at gmail.com
Sun Jan 27 18:18:49 UTC 2013

(I guess that might have slipped through the cracks of the Christmas
holidays, resending)


The website is inaccessible via IPv6 for some users that have MTU less
than 1500 on their network interfaces, confirmed by several regulars
at #ipv6.

This looks like a misconfiguration of the server infrastructure that
might be dropping ICMPv6 "fragmentation needed but DF set" packets
before they have a chance to get back to the http daemon so it can do
proper PMTU to the clients.

Please consider fixing this rather sooner than later as it makes the
website "very slow" (i.e. the browser waits for the connection to
timeout and only then retries via IPv4) and also breaks NUT
compilation for OpenWrt (and other source-based distros that use wget
or curl to download the sources).

TIA :)
Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software!
mailto:fercerpav at gmail.com

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