Re: [pcp] Fw:I-D Action: New Version Notification for draft-tsou-pcp-natcoord-08.txt

Dear Dan,

The learned port-set is only for restricted NAT on IPv4 packet.
MAP_PORT_SET is sent using native IPv6, and so there is no restriction on
the port-range. As Simon said, it can use any UDP port on the internal
address it already has.

Thanks for your comments :)

Best wishes
Qiong

On Fri, Nov 2, 2012 at 6:40 AM, Dan Wing <dwing@cisco.com> wrote:

> > -----Original Message-----
> > From: Simon Perreault [mailto:simon.perreault@viagenie.ca]
> > Sent: Thursday, November 01, 2012 2:05 PM
> > To: Dan Wing
> > Cc: pcp@ietf.org
> > Subject: Re: [pcp] Fw:I-D Action: New Version Notification for draft-
> > tsou-pcp-natcoord-08.txt
> >
> > Le 2012-11-01 21:53, Dan Wing a écrit :
> > >> Le 2012-11-01 15:49, Dan Wing a écrit :
> > >>> Ok.  Which UDP port does the CPE send that PCP request, if it does
> > >>> not yet already know the port range assigned to the CPE?
> > >>
> > >> Uh?
> > >
> > > Sorry, I meant to ask:
> > >
> > >    *from* which UDP port does the CPE send that PCP request.
> > >
> > > or can it use any source UDP port for its PCP request, or does it have
> > > to be one of its assigned UDP ports (which aren't yet assigned until
> > > PCP exchange)?
> >
> > That's what I understood. And the answer is still the same:
> >
> > Q: From which UDP port does the CPE send a MAP request?
> > A: From any UDP port on the internal address it already has.
> >
> > Q: From which UDP port does the CPE send a MAP_PORT_SET request?
> > A: From any UDP port on the internal address it already has.
> >
> > There must be something else I'm not getting...
>
> If it doesn't get (learn) that UDP port via PCP, how does it
> learn it?
>
> -d
>
>
> > Simon
> >
> > >> MAP gives one port.
> > >> MAP_PORT_SET gives a set of ports.
> > >>
> > >> MAP and MAP_PORT_SET have the same answer to your question.
> > >>
> > >> Simon
> > >> --
> > >> DTN made easy, lean, and smart --> http://postellation.viagenie.ca
> > >> NAT64/DNS64 open-source        --> http://ecdysis.viagenie.ca
> > >> STUN/TURN server               --> http://numb.viagenie.ca
> > >> _______________________________________________
> > >> pcp mailing list
> > >> pcp@ietf.org
> > >> https://www.ietf.org/mailman/listinfo/pcp
> > >
> >
> >
> > --
> > DTN made easy, lean, and smart --> http://postellation.viagenie.ca
> > NAT64/DNS64 open-source        --> http://ecdysis.viagenie.ca
> > STUN/TURN server               --> http://numb.viagenie.ca
>
> _______________________________________________
> pcp mailing list
> pcp@ietf.org
> https://www.ietf.org/mailman/listinfo/pcp
>

-- 
==============================================
Qiong Sun
China Telecom Beijing Research Institude

Open source code:
lightweight 4over6: *http://sourceforge.net/projects/laft6/*
PCP-natcoord:* http://sourceforge.net/projects/pcpportsetdemo/ *
===============================================