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Re: [tae] [tsv-area] Transport negotiation

Iljitsch van Beijnum <iljitsch@muada.com> Thu, 04 December 2008 09:29 UTC

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From: Iljitsch van Beijnum <iljitsch@muada.com>
To: james woodyatt <jhw@apple.com>
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Subject: Re: [tae] [tsv-area] Transport negotiation
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On 3 dec 2008, at 22:57, james woodyatt wrote:

> While I'm dreaming, I think I'd ask for two record types to be  
> defined: one for IPv4 and the other for IPv6.  That way, the DNS-SD  
> usage of PTR records could allow registrants to advertise things  
> like "this service is available for IPv6 at TCP port A and for IPv4  
> at TCP port B (which I've got mapped at my NAT gateway to port A)."

You may want to tackle TCP vs SCTP (well, really "which *P", of  
course) while you're at it... And don't forget relative priorities so  
someone can say "try (my native, non-NAT) IPv4 first, then (6to4)  
IPv6" vs "try (native) IPv6 first, then (NATed) IPv4)". Or SCTP+TCP  
over v6, but my v4 NAT doesn't do SCTP so only TCP over v4.
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