On Jun 3, 2011, at 10:46 AM, Jeffrey B. Green wrote:
On Fri, 03 Jun 2011 09:42:49 +0200 Pascal Hambourg <pascal.mail@plouf.fr.eu.org> wrote:It could be an MTU/MSS issue. See the recent discussion in the debian-ipv6 list with subject "schein.debian.org" [2001:4f8:8:36::6].Many thanks. Changing the MTU to 1480 as suggested worked. Indeed aswas mentioned my connection to the IPv6 network is via a tunnel and I'm assuming as a poster commented that someone on the path is not handlingthe packaging correctly. -jeff
The RFCs say that any conforming implementation MUST handle an MTU of 1280, and may not necessarily handle anything larger. So it makes sense (if you're going to go to the trouble of setting the MTU in the first place) to use that number. The difference in overhead between 1280 and 1400 is negligible.
Rick