Re: [gentoo-desktop] python.org and ipv6

[Lindsay Haisley]

On Sat, 2009-05-16 at 13:07 +1000, Tom Fifield wrote:
> I have encountered this problem before, however www.python.org works
> fine on ipv6 for me. Many cases where things fail is because DNS
> resolves the AAAA record, but the ISP/upstream providers don't have IPv6
> connectivity to the site.

I'm using a v6->v4 tunnel broker so my ISP is out the loop, what's more,
as I said,

> www.python.org also
> resolves with an aaaa record (2001:888:2000:d::a2), and I can ping6
> the server, so I know that routing is OK.

It looks as if the problem may be related to MTUs.  I did a bit of
jiggery-pokery with MTUs, setting the MTU for the IF on my desktop
system slightly lower than the MTU on the LAN IF of my router, and it
appears that the problem is solved for now, at least.

I've seen network problems before with MTU issues, especially where UDP
packets are involved, as they may be with the tunnel broker.

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