Re: IPv4 only apps [was: IPv6 only host NAT64 requirements?]

Ole Troan <otroan@employees.org> Tue, 14 November 2017 02:17 UTC

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From: Ole Troan <otroan@employees.org>
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Subject: Re: IPv4 only apps [was: IPv6 only host NAT64 requirements?]
Date: Tue, 14 Nov 2017 10:17:17 +0800
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Cc: Philip Homburg <pch-ipv6-ietf-4@u-1.phicoh.com>, 6man WG <ipv6@ietf.org>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Brian,

>> 
>> If you are using the IPv6 only + NAT64 network you can't possibly use the legacy IPv4 only stuff in your laptop...?
> 
> Indeed. Because my laptop isn't providing a NAT46 bump in the stack, for example.
> 
> I haven't analysed this at all. What I'm saying is that we haven't done this;
> we've simply sneered at application developers who haven't added IPPROTO_IPV6
> to all their network code. Sneering doesn't solve much.

Gentle nudge?
I think Randy and Jen's experiment shows that we are nearly there.
On my iphone, where Apple enforced IPv6 support to be allowed to play, I only found _one_ single application that didn't work.
Even on my laptop, I had to look quite hard before finding something that broke.
We're nearly there!

Cheers,
Ole