On 21 Feb 2008, at 21:55, Phelan, Tom wrote:
...
I worry that the DCCP-UDP port might need to be different than the
DCCP-RAW port. Are you expecting them to always be the same? That
should be a reasonable assumption most of the time, but I worry it
might not work in some case.
I am expecting them to always be the same. My model is that a each
instance of the DCCP transport can either send packets natively over
IP, or tunnelled over UDP. Since it's a single transport instance,
the same port space would be used for encodings of the data.
[Tom P.] As I said in another e-mail, if you make the UDP port
equivalent to the DCCP port, that means you can't have UDP apps. I
don't think that's a workable solution.
Sure - I was agreeing: use a single DCCP port space, no matter
whether native or tunnelled. That only uses one UDP port.
--
Colin Perkins
http://csperkins.org/