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Re: CPE equipments and stateful filters
On Tuesday 24 July 2007 20:52:42 Iljitsch van Beijnum wrote:
> On 24-jul-2007, at 11:31, Rémi Denis-Courmont wrote:
> > By the way, to amend James's slideset, only UDP really works with
> > ICE (or any
> > form of hole punching), while TCP works to a very-lesser extent, and
> > everything else does not: DCCP, SCTP, IPsec...
> An important issue about the hole punching is the shape of the hole.
> If the hole has the shape of a particular transport session, you're
> not accomplishing much because you still can't receive arbitrary
> incoming sessions.
Yes, that still sucks. But if you have BEHAVE-TCP support, you can at least do
TCP simultaneous open (forget about DCCP and SCTP though), provided you have
an out-of-band signaling mechanism.
Without BEHAVE-TCP, you cannot do home-to-home at all, and you have to invent
your own crappy protocol on top of UDP.
 At least, *I* am not capable of reinventing something nearly as good as
TCP or DCCP by myself.