IPv6 day and tunnels
Joe Maimon
jmaimon at ttec.com
Mon Jun 4 02:19:57 UTC 2012
Cameron Byrne wrote:
>>
>
> #1 don't tunnel unless you really need to.
Tunnels are ipv4 only now?
>
> #2 see #1
>
> #3 use happy eyeballs, http://tools.ietf.org/html/rfc6555, Chrome has
> a good implementation, but this does not solve MTU issues.
Because the initial connections are made just fine.
PMTUD with probing should work, but does not seem to. Probably a (lack
of) deployment issue.
>
> #4 MSS hacks work at the TCP layer and still work regardless of IPv4 or IPv6.
But the equipment needs to support it. Again IPv6 lags.
>
> #5 According to the IETF, MSS hacks do not exist and neither do MTU
> issues http://www.ietf.org/mail-archive/web/v6ops/current/msg12933.html
Thanks for that. I expect soon tunnels wont either.
>
> PSA time: Please use http://test-ipv6.com/ and pass this good advice
> around to the people you know.
Excellent site/tool.
>
> Thanks,
>
> Cameron
>
>
Thank you.
Joe
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