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Posted by Chris on 01/19/07 09:01
On 18 Jan 2007 09:08:56 -0800 nycram <gvellenzer@gmail.com> wrote:
> *From:* "nycram" <gvellenzer@gmail.com>
> *Date:* 18 Jan 2007 09:08:56 -0800
>
> Chris wrote:
> > On Wed, 17 Jan 2007 21:25:40 GMT AlmostBob
> > <anonymous1@discussions.microsoft.com> wrote:
> >
> > > 'You' decide what numbers you use, and your pc tells the network
> > > that
> > > those ports are available
> > > 'They' decide what numbers they use, and their pc likewise
> > >
> > > then your pc connects its outgoing port to 'their' incoming port,
> > > and
> > > 'your' incoming port to their outgoing port
> >
> > Ok.
> > So, assume you have selected (say) port 12345, but they are using the
> > default 6699. If your ISP blocks port 6699 will this still block a
> > connection from you to them?
>
> No. Your ISP can't block their ports---else the whole internet would
> come crashing down because pretty soon nobody could connect to anybody
> else. But they can block your ports. If they block your 6699, and you
> go to 12345 (a bad choice BTW) you can receive other people's messages
> on YOUR chosen port (12345) and they can receive your messages on their
> chosen port (no change from before).
Ok, I understand now. Thanks for the explanations.
(oh, and I would not actually use port 12345 :-) )
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