Begin forwarded message:
> From: Wayne J <lway...@gmail.com> > Date: 2011年8月23日 上午04时57分32秒格林尼治标准时间+0800 > To: Bing Li <lbl...@gmail.com> > Subject: Re: Can Peer-to-Peer Model Be Launched in AppStore? > > Sorry, I missed you second question. > > If the iPad is making the connection then this should work on NAT but it > should also work on 3G. The only reason it would not work on 3G, that I can > think of, is that the carrier might block connections to specific ports on > outgoing. However, I don't think this is strictly point to point. If you > have 2 iPad talking to each other they are both behind NAT then they both > must connect to a server outside their NATs that will act as a sort of proxy. > > I believe that this is how Skype works. They just call the unknowing servers > 'supernodes'. This should also work over 3G unless that carrier blocks it > with a firewall or Apple disallows the application from the App store. But > neither of these reasons are technical in nature. > > > Wayne > > On Aug 22, 2011, at 10:26 AM, Bing Li wrote: > >> Dear Wayne, >> >> Thanks so much for your email! >> >> I don't understand your opinions well. Jens said 3G did not allow incoming >> connections. So I think P2P does not work in such an environment. I have to >> try to use app notifications. The major reason I use P2P is to get a lower >> load on the server and users can get pushed data. >> >> For iPad/iPhone within a NAT, I will ask the device to connect the server >> outside the NAT firstly. So a connection can be established. Pushing can be >> done without the block of NAT. >> >> Do you think my solution works? >> >> Best, >> Bing >> >> _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
